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air compressor unit

https://mhc.andornot.com/en/permalink/artifact13121
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Dental
Classification
Dental
Accession Number
010020032
Description
Black-enamelled metal air compressor unit; cylindrical air compressor sits on rectangular base atop cylindrical motor with square base; whole unit atop rounded cylindrical base; black rubber band around five-spoked silver metal wheel, attached to compressor base, and smaller wheel, attached to moto…
  2 images  
Accession Number
010020032
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Dental
Classification
Dental
MeSH Heading
Dental Equipment
Description
Black-enamelled metal air compressor unit; cylindrical air compressor sits on rectangular base atop cylindrical motor with square base; whole unit atop rounded cylindrical base; black rubber band around five-spoked silver metal wheel, attached to compressor base, and smaller wheel, attached to motor; black rubber electrical wire coming from base, black and yellow plastic plug at end; silver metal pipe goes from top to air compressor base; black fabric-covered wire goes from motor to air compressor base; broken black rubber wire coming from unit base
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa).
Maker
The Ritter Dental Mfg. Co.
Site Made (City)
Rochester
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Printed on artefact
Material
metal: silver
enamel: black, yellow
rubber: black
fabric: black
plastic: black, yellow
Inscriptions
Printed on unit: "AUTOMATIC AIR COMPRESSOR UNIT // MANUFACTURED BY // THE RITTER DENTAL MFG. CO. // ROCHESTER, NEW YORK, U.S.A. // PAT. NOV 7, 1916 // MAR. 27, 1917 // OTHER PATS PENDING // SERIAL NO. 5832 MODEL -A- // -IMPORTANT- // TO OIL COMPRESSOR, REMOVE THUMB SCREW BELOW THIS NAME PLATE. THEN FILL // WITH COLUMBIA COMPRESSOR OIL THROUGH FILLING HOLE LOCATED ABOVE NAME // PLATE UNTIL OIL FLOWS OUT SCREW HOLE BELOW. POUR VERY SLOWLY // SEE PRINTED DIRECTIONS MADE IN U.S.A.", "AUTOMATIC // MRD CO. // SWITCH // BRITISH PATENT // NO. 16130 OF 19[Illeg.]1"; printed on motor: "THE RITTER DENTAL MFG CO // ROCHESTER, NY // SPECIAL // EMERSON // AIR COMPRESSOR MOTOR // NO. 599862 // VOLTS 110 TYPE 7342 NT // CYCLES 60 AMPS 4.3 // PHASE 1 SPEED 1750 // FOR ALTERNATING CURRENT // PATENTED"; embossed on wheel: "NATIONAL HARDWARE SPECIALTIES LTD // MADE IN DRESDEN ONTARIO CANADA"
Permanent Location
Storage Room W2
W2-536-4-1
Dimension Notes
Length 1.02 m x Width 34.0 cm x Depth 34.0 cm
Condition Remarks
Rubber wires taped together with masking and electrical tape; one wire end is broken off; whole unit is greasy; rubber wires are brittle; enamel chipping heavily around base
Copy Type
Original
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008
Images
Less detail
Dates
1900
1930
circa 1900-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020219 a-d
Description
Two boxes of dental canal points; cylindrical brown wooden boxes (a, b) with white paper labels printed with black ink; labels state product, size, manufacturing information; each box is filled with thin brown metal cylinders of various sizes with flat ends; each box has one cylindrical brown woode…
  1 image  
Accession Number
010020219 a-d
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dentistry, Operative
Root Canal Therapy
Description
Two boxes of dental canal points; cylindrical brown wooden boxes (a, b) with white paper labels printed with black ink; labels state product, size, manufacturing information; each box is filled with thin brown metal cylinders of various sizes with flat ends; each box has one cylindrical brown wooden cap (c, d) that rests atop the box.
Number Of Parts
4
Part Names
a - box - Size: Length 4.0 cm x Diam. 1.1 cm
b - box - Size: Length 4.0 cm x Diam. 1.1 cm
c - cap - Size: Depth 1.0 cm x Diam. 1.3 cm
d - cap - Size: Depth 1.0 cm x Diam. 1.3 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Young Dental Mfg. Co.
Site Made (City)
St. Louis
Site Made (State)
Missouri
Site Made (Country)
United States of America
Dates
1900
1930
circa 1900-1930
Date Remarks
Based on supplier's catalogue
Material
wood: brown
paper: white
ink: black
metal: brown
Inscriptions
(a) Printed on label: "small - 2 // SILVE // CANAL POIN // No. 5 // As suggested by // Dr. E. A. Jasper, D.D // MADE IN U.S.A. // Young Dental Mfg // St. Louis Mo."; (b) printed on label: "small - 2o // SILVER // CANAL POIN // No. 4 // As suggested by // Dr. E. A. Jasper, D.D // MADE IN U.S.A. // Young Dental Mfg. // St. Louis Mo."; handwritten on label: "LARGE // 6"
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Scotch tape remnants on labels; labels are ripped in places; points are slightly tarnished
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-G”, S.S. White Dental Mfg. Co., 1915, p. 16 (similar to Gutta-Percha root canal points)
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; canal points are used to fill root canals.
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Caulk and Thymozin

https://mhc.andornot.com/en/permalink/artifact13377
Dates
1930
1960
circa 1930-1960
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020255 a-e
Description
Two dental jars of unknown substances; white rectangular paper tray (a) covered with grey paper with divider in middle, creating two square spaces; two translucent glass jars with angled corners; jar (b) with white rectangular paper label around front printed with green ink; jar contains brown crys…
  3 images  
Accession Number
010020255 a-e
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Description
Two dental jars of unknown substances; white rectangular paper tray (a) covered with grey paper with divider in middle, creating two square spaces; two translucent glass jars with angled corners; jar (b) with white rectangular paper label around front printed with green ink; jar contains brown crystallized substance; jar (c) with white rectangular paper label around front printed with blue ink; jar contains white powder; jars tapers at top to round opening; round silver metal twist caps (d, e) on top
Number Of Parts
5
Part Names
a - tray - Size: Length 7.3 cm x Width 4.1 cm x Depth 1.3 cm
b - jar - Size: Length 3.0 cm x Width 3.0 cm x Depth 2.0 cm
c - jar - Size: Length 3.0 cm x Width 3.0 cm x Depth 2.0 cm
d - cap - Size: Depth 0.7 cm x Diam. 2.8 cm
e - cap - Size: Depth 0.7 cm x Diam. 2.8 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
L.D. Caulk Company
Site Made (City)
Milford
Site Made (State)
Delaware
Site Made (Country)
United States of America
Dates
1930
1960
circa 1930-1960
Date Remarks
Based on design
Material
glass: clear
metal: silver
paper: white, brown
ink: green, blue, grey
Inscriptions
(b) Printed on label: "1 THYMOZIN 1 CAULK 1 THYMOZIN 1"; (c) printed on label: "2 THYMOZIN 2 CAULK 2 THYMOZIN 2"; (b, c) embossed on bottom: "3"; (d) embossed on top: "C 1"; (e) embossed on top: "C 2"
Permanent Location
Storage Room 0010
0010-A3-7
Condition Remarks
Paper tray (a) has darks marks on bottom; cap (e) slightly tarnished
Copy Type
Original
Reference Types
JPG
Reference Comments
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008
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commemorative pocket crest

https://mhc.andornot.com/en/permalink/artifact13211
Dates
1930
1980
circa 1930-1980
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Commemorative and Communication Artifacts
Business
Dental
Ceremonial
Classification
Commemorative and Communication Artifacts
Business
Dental
Ceremonial
Accession Number
010020122
Description
Dark blue oval embroidered commemorative pocket crest school badge for the University of Toronto Faculty of Dentistry; crest with brown open book on blue background, above a branch with three green leaves on yellow background, which is above a brown lantern with red smoke coming from spout on green…
  1 image  
Accession Number
010020122
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Commemorative and Communication Artifacts
Business
Dental
Ceremonial
Classification
Commemorative and Communication Artifacts
Business
Dental
Ceremonial
MeSH Heading
Schools, Dental -- ephemera
Description
Dark blue oval embroidered commemorative pocket crest school badge for the University of Toronto Faculty of Dentistry; crest with brown open book on blue background, above a branch with three green leaves on yellow background, which is above a brown lantern with red smoke coming from spout on green background in middle; name of faculty in brown thread in white banner below crest; faculty's motto in brown thread in white banner above crest; banners are bordered by spun brown metal decoration, along with the badge itself; name of university curved along edges of badge in aged gold bullion embroidery thread; tree with green top, black trunk on blue and brown base at top centre; back is white with yellow, green, blue, black and red thread visible.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Site Made (City)
Toronto
Site Made (State)
Ontario
Site Made (Country)
Canada
Dates
1930
1980
circa 1930-1980
Material
fabric: blue, white, green, yellow, black, red
metal: brown
Inscriptions
Sewn on front: "UNIVERSITY OF TORONTO // INTEGRA SANITAS // FACULTY OF DENTISTRY"
Permanent Location
Storage Room 0010
0010-C5-3
Dimension Notes
Length 9.8 cm x Width 7.5 cm x Depth 0.2 cm
Condition Remarks
Loose threads at edges; some of the metal border is coming loose
Copy Type
Original
Reference Types
Internet
Reference Comments
"University of Toronto - Faculty of Dentistry" website
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008.
The Faculty of Dentistry was created in 1925 when the University of Toronto took over teaching from the Royal College of Dental Surgeons of Ontario; the two had been affiliated since 1888, though the RCDS had been teaching dental students since 1868; the Faculty is now the largest in Canada (2010), graduating up to 100 dentists per year and is the foremost dental research centre in Canada.
Images
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Dates
1930
1950
circa 1930-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020174 a-b
Description
True Dentalloy dental alloy bottle and stopper; rectangular clear glass bottle (a) with indented sides and back; brown rectangular paper label affixed to front and printed with green ink states product name, weight and manufacturer's information; smaller label on side printed with black ink mention…
  3 images  
Accession Number
010020174 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Materials
MM= Dental Restoration, Permanent -- alloy/amalgam
Description
True Dentalloy dental alloy bottle and stopper; rectangular clear glass bottle (a) with indented sides and back; brown rectangular paper label affixed to front and printed with green ink states product name, weight and manufacturer's information; smaller label on side printed with black ink mentions American Dental Association specifications; bottle tapers at top to round opening; neck of bottle features green label with product name; translucent glass stopper (b) fits into bottle with round clear glass circle at top.
Number Of Parts
2
Part Names
a - bottle - Size: Length 9.0 cm x Width 4.2 cm x Depth 3.0 cm
b - stopper - Size: Depth 2.9 cm x Diam. 3.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
S.S. White Company of Canada Ltd.
Site Made (City)
Toronto
Site Made (State)
Ontario
Site Made (Country)
Canada
Dates
1930
1950
circa 1930-1950
Date Remarks
Based on supplier's catalogue
Material
glass: clear
paper: brown
ink: green, black
Inscriptions
(a) Printed on label: "TRUE DENTALLOY // CONTENTS 5 OUNCES // TRUE DENTALLOY // TRADE-MARK REG IN CANADA // AND ELSEWHERE // S. S. WHITE COMPANY // OF CANADA LIMITED // MADE IN CANADA"; printed on side label: "GUARANTEED TO COMPLY WITH // A. D. A. SP [Illeg.] // REVISED [Illeg.]"
Permanent Location
Storage Room 0010
0010-A3-6
Condition Remarks
Paper label is very darkened, worn, and torn in places; remnants of silver metal inside bottle
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-G”, S.S. White Dental Mfg. Co., 1915, p. 7 (S. S. White True Dentalloy); "Material in Dentistry: Principles and Applications, 2nd ed.", Jack L. Ferracane, 2001, p. 4, 122
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; True Dentalloy was S. S. White's dental alloy for use in making amalgam fillings, and it consisted of a high percentage of silver (around 70%) and a mix of tin, copper and zinc; amalgams were first used in France in the early 19th century, and involved amalgamating metals with mercury; the modern 'recipe' was perfected by Dr. G. V. Black in the 1890s in Chicago, and S. S. White used his method to create their Dentalloy; in their catalogue they state their alloy is perfectly balanced, meaning the expansion of one metal is balanced by the contraction of another, and tempered, meaning it is aged so that the metals will remain stable
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dental aluminum shells

https://mhc.andornot.com/en/permalink/artifact13292
Dates
1930
1950
circa 1930-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020170 a-h
Description
Brown wooden rectangular box of aluminum shells; box (a) has white paper label printed with black ink on front stating product name and manufacturing information; white paper label inside lid illustrates product and shows different sizes from 1-20; box is separated into twenty different square comp…
  3 images  
Accession Number
010020170 a-h
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Description
Brown wooden rectangular box of aluminum shells; box (a) has white paper label printed with black ink on front stating product name and manufacturing information; white paper label inside lid illustrates product and shows different sizes from 1-20; box is separated into twenty different square compartments by three horizontal brown paper inserts (b, c, d) with numbers from 6-20 printed with black ink and four vertical inserts (e, f, g, h) fitting on top; lid affixed to box at back via brown adhesive paper, closes via small silver metal nail going through holes on lid and box at front; box is filled with four to six aluminum shells of different sizes in each of the twenty compartments.
Number Of Parts
8
Part Names
a - box - Size: Length 16.0 cm x Width 12.1 cm x Depth 3.4 cm
b - insert - Size: Length 15.0 cm x Width 2.7 cm x Depth 0.1 cm
c - insert - Size: Length 15.0 cm x Width 2.7 cm x Depth 0.1 cm
d - insert - Size: Length 15.0 cm x Width 2.7 cm x Depth 0.1 cm
e - insert - Size: Length 11.0 cm x Width 2.7 cm x Depth 0.1 cm
f - insert - Size: Length 11.0 cm x Width 2.7 cm x Depth 0.1 cm
g - insert - Size: Length 11.0 cm x Width 2.7 cm x Depth 0.1 cm
h - insert - Size: Length 11.0 cm x Width 2.7 cm x Depth 0.1 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Blue Island Specialty Co., Inc.
Site Made (City)
Blue Island
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1930
1950
circa 1930-1950
Date Remarks
Based on packaging
Material
wood: brown
metal: silver
paper: white, brown
ink: black
Inscriptions
(a) Printed on front: "BISCO BRAND // SEAMLESS SHELLS // 20 DIFFERENT SIZES // GAUGE // 36 One-Half // Inch // ALUMINUM // SHELLS // BLUE ISLAND SPECIALTY CO., INC. Blue Island, Ill. // MANUFACTURERS // ORTHODONTIC APPLIANCES, SUPPLIES AND DENTAL SPECIALTIES"; (b) printed on insert: "6 7 8 9 10"; (c) printed on insert: "11 12 13 14 15"; (d) printed on insert: "16 17 18 19 20";
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Slight water damage on paper label; label is darkened
Copy Type
Original
Reference Types
Internet
JPG
Reference Comments
"My new smile" website
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; aluminum shells are used as temporary crowns while the permanent crown is being created in a dental laboratory; aluminum is used because it is not very strong, since the temporary crown must be easily removed
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dental anaesthesia unit

https://mhc.andornot.com/en/permalink/artifact13115
Dates
1920
1940
circa 1920-1940
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020026 a-f
Description
Dental anaesthesia unit with black plastic top (a); three gauges for oxygen, nitrous oxide and carbon dioxide have silver metal borders, glass coverings, gold-enamelled faces, printed with black, green and red enamel; silver metal knobs with grey-enamelled control panels for control, pressure, mixt…
  1 image  
Accession Number
010020026 a-f
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dentistry, Operative -- instrumentation
Ventilators, Mechanical
Anesthesiology, instrumentation
MM= Anesthesia, Inhalation -- machine
Description
Dental anaesthesia unit with black plastic top (a); three gauges for oxygen, nitrous oxide and carbon dioxide have silver metal borders, glass coverings, gold-enamelled faces, printed with black, green and red enamel; silver metal knobs with grey-enamelled control panels for control, pressure, mixture and flow; green-enamelled dial for oxygen, grey-enamelled dial for carbon dioxide; silver metal pipe comes out of front of stand, bends at 45-degree angle; top is supported by black-enamelled metal pole atop cross-shaped black-enamelled metal base, four black rubber wheels with silver metal casters; silver metal attachment on support pole to hold gas tank; black rubber rebreather bag attached to silver metal valve underneath top; two black rubber tubes with metal ends attached underneath; black rubber tube attached underneath ends with round pump; broken black rubber tube attached to silver metal semi-spherical inhaler with black rubber insert (b); blue metal nitrous oxide tank with silver metal top (c) with diamond-shaped white paper label printed with blue and black ink; white and green metal oxygen tank with silver metal top (d) with diamond-shaped white paper label printed with green, blue and black ink; tanks covered by beige fabric coverings with purple thread drawstring at tops (e, f)
Number Of Parts
6
Part Names
a - unit - Size: Length 88.4 cm x Width 48.0 m x Depth 48.0 cm
b - inhaler - Size: Length 1.34 m x Width 12.1 cm x Depth 7.8 cm
c - tank - Size: Length 51.7 cm x Diam. 11.5 cm
d - tank - Size: Length 51.7 cm x Diam. 11.5 cm
e - covering - Size: Length 40.3 cm x Diam. 11.5 cm
f - covering - Size: Length 40.3 cm x Diam. 11.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Heidbrink Division, The Ohio Chemical Mfg. & Co.
Site Made (City)
Minneapolis
Site Made (State)
Minnesota
Site Made (Country)
United States of America
Dates
1920
1940
circa 1920-1940
Date Remarks
Based on supplier's catalogue
Material
metal: brown, silver
enamel: black, blue, green, yellow, red
rubber: black
plastic: black
fabric: beige, purple
paper: white
ink: black, blue, green
Inscriptions
(a) Printed on top of unit: "CONTROL VALVE // O2 DIRECT // DIRECT N2O // SHUT// PATIENT CONTROL // MIXTURE", "MIXTURE // O2-N2O // OXYGEN PERCENTAGE CONSTANT // AS PER OXYGEN GAUGE INDICATION"; printed in gauges: "GALLONS PER HOUR // CARBON DIOXIDE", "OFF ON // MEASURED N2O", "OXYGEN PERCENTAGE // THE HEIDBRINK DIVISION // THE OHIO CHEMICAL MFG. & CO. // MINNEAPOLIS"; inscribed on unit: "HEIDBRINK // MINNEAPOLIS, MINN. U.S.A."; "PAT. NO. 1687768"; (c) printed on tank label: "OHIO // MADE IN CANADA // NITROUS OXIDE // OHIO CHEMICAL CANADA // A DIVISION OF // AIR REDUCTION CANADA LIMITED", engraved on top: "Ohio Chemical"; (d) printed on tank label: "OHIO // MADE IN CANADA // FOR MEDICAL USE OXYGEN FOR MEDICAL USE // OHIO CHEMICAL CANADA // A DIVISION OF // AIR REDUCTION CANADA LIMITED // CAUTION - KEEP AWAY FROM OIL AND GREASE", engraved on top: "Ohio Chemical"
Permanent Location
(a, b, c ,d) Storage Room W2
W2-536-1-1
(e, f) Storage Room W2
W2-536-3-2
Condition Remarks
Grey enamel on control panels scratched, worn; metal underneath top rusty in places; crack in plastic at back of unit; large piece of plastic missing at back of unit; rubber pipe broken on (b), covered over with tape; paper labels on tanks (c, d) worn, crinkled, enamel peeling and metal rusty; fabric coverings (e, f) dirty
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"S.S. White Dental Catalog, Catalog-R", S.S. White Dental Mfg. Co., 1916, p. 7 (similar to outfit C3)
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008
Images
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dental anaesthetic inhaler

https://mhc.andornot.com/en/permalink/artifact13183
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020094
Description
Silver metal dental anaesthetic inhaler made for Somnoform; consists of round base with wire mesh bottom; two curved pieces of metal cover end; hollow metal tube coming out of base at slight angle; handle from base leads upward; round mask with pointed top to go over mouth and nose is perpendicular…
  2 images  
Accession Number
010020094
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Administration, Intranasal -- instrumentation
Anesthesiology, instrumentation
Anesthesia, Dental
MM= Anesthesia, Inhalation -- inhaler/mask -- inhaler
Description
Silver metal dental anaesthetic inhaler made for Somnoform; consists of round base with wire mesh bottom; two curved pieces of metal cover end; hollow metal tube coming out of base at slight angle; handle from base leads upward; round mask with pointed top to go over mouth and nose is perpendicular to base; knob on side of inhaler controls how much Somnoform, how much air, or what mixture of the two is being inhaled through the mask.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Stratford-Cookson Ltd.
Site Made (City)
Yeadon
Site Made (State)
Pennsylvania
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on donor's remarks
Material
metal: silver
Inscriptions
Engraved on side: "STRATFORD-COOKSON // SOMNOFORM INHALER"; engraved on side: "AIR // 1/4 // 1/2 // 3/4 // SOMNOFORM"; engraved on base: "7813"
Permanent Location
Storage Room 0010
0010-B
Temporary Location
On display, Queen's University Department of Medicine third floor, August 20, 2013.
Dimension Notes
Length 22.7 cm x Width 15.8 cm x Depth 8.9 cm
Condition Remarks
Metal slightly tarnished
Copy Type
Original
Reference Types
Book
Other
JPG
Reference Comments
"Dental Materia Medica and Therapeutics", Herman Prinz, 1913, p. 315; "'Somnoform' a New Aid to Surgery.", New York Times, June 4, 1904
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Norman Ironstone from Ottawa, Ontario; Somnoform was a general anaesthetic made from 60 parts ethyl chloride, 35 parts methyl chloride, and 5 parts ethyl bromide; it was invented by Georges Rolland, director of the dental school at Bordeaux, in 1901; the anaesthetic had a very low boiling point, and turned to gas immediately upon contact with air; it had to be used with a special inhaler or, originally, with a piece of cloth with paper and cotton batting inside; one of its virtues was the fact that a patients breathing stopped before their heart stopped beating, so dentists could monitor their patients breathing in case of problems; it was claimed to be better for minor surgery than nitrous oxide because of its longer anaesthetic time, and better to use before ether or chloroform; while the instructions claimed it was the safest of all anaesthetics, a few deaths did occur, and its use was fairly short-lived
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dental articulator

https://mhc.andornot.com/en/permalink/artifact13496
Dates
1928
1935
1928-1935
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020375 a-c
Description
Grey metal dental articulator; triangular base; adjustable round plate at front; back branches of triangle have rectangular pieces of metal rising up, ending with metal circles with rectangular cut-outs in their middles; cylindrical piece of metal sits between them, with round ends placed in the cu…
  5 images  
Accession Number
010020375 a-c
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Impression Technic
Dental Articulators
Denture, Complete
Dental Instruments
Description
Grey metal dental articulator; triangular base; adjustable round plate at front; back branches of triangle have rectangular pieces of metal rising up, ending with metal circles with rectangular cut-outs in their middles; cylindrical piece of metal sits between them, with round ends placed in the cut-outs; screws at top allow placement of cylindrical piece to shift; rectangular section of metal comes forward, perpendicular to cylinder, parallel to base; cylinder with pointed end touches down on plate at front of articulator; two round mounting plates (b, c) screw onto top of base and bottom of upper rectangular section
Number Of Parts
3
Part Names
a - articulator - Size: Length 16.4 cm x Width 16.0 cm x Depth 15.0 cm
b - plate - Size: Depth 0.6 cm x Diam. 5.8 cm
c - plate - Size: Depth 0.6 cm x Diam. 5.8 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Hanau Engineering Company Inc.
Site Made (City)
Buffalo
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1928
1935
1928-1935
Date Remarks
Printed on artefact
Material
metal: grey
Inscriptions
(a) Embossed on top: "PATENTS // JUNE 1st, 1926 // MAY 8th, 1928 // OTHERS // PENDING"; "MODEL H"; embossed on sides: "HANAU"; embossed on bottom: "MADE BY // HANAU // ENG. CO. // BUFFALO // N.Y."; "H=HORIZONTAL CONDYLE INDICATION. // DISREGARDPLUS OR MINUS // L=LATERALCONDYLE INDICATION. // ACCEPT L=H/8 + 12 // 7749"
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Metal is tarnished; screw missing from bottom
Copy Type
Original
Reference Types
Internet
JPG
Reference Comments
"Free Patents Online" website
CD #1
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. D. Christopher Clarke from Vancouver, British Columbia; this item's patent was filed in 1923 and patented in 1928; Rudolph Hanau's first articulator was designed in 1921
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dental articulator

https://mhc.andornot.com/en/permalink/artifact13501
Dates
1925
1945
circa 1925-1945
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020380
Description
Yellow metal dental articulator; triangular base with triangular cut-out in centre; two vertical metal rectangles rise from back corners; triangular top piece with triangular cut-out in centre hinged to rectangles, sits parallel to base; pointed cylinder comes down from tip of top piece, touches do…
  5 images  
Accession Number
010020380
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Impression Technic
Dental Articulators
Denture, Complete
Dental Instruments
Description
Yellow metal dental articulator; triangular base with triangular cut-out in centre; two vertical metal rectangles rise from back corners; triangular top piece with triangular cut-out in centre hinged to rectangles, sits parallel to base; pointed cylinder comes down from tip of top piece, touches down on tip of base; three silver metal cylinders mounted on semi-circular piece of metal attached to pointed cylinder in middle
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Amalgamated Dental Co. Ltd.
Site Made (City)
London
Site Made (Country)
England
Dates
1925
1945
circa 1925-1945
Date Remarks
Based on company history
Material
metal: yellow, silver
Inscriptions
Engraved at top: "AD.CO.LTD // MADE IN ENGLAND // FREEPLANE // FREEPLANE"; hand-engraved at top: "G E"
Permanent Location
Storage Room 0010
0010-B
Dimension Notes
Length 14.5 cm x Width 11.8 cm x Depth 10.7 cm
Condition Remarks
Metal is tarnished; some plaster remnants on top and bottom
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Jill Burbank
CD #1
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Jill Burbank, wife of Dr. Erwin C. Burbank, from Victoria, British Columbia; Dr. Burbank practiced dentistry in Montreal with his brother, Dr. Alton W. Burbank; Alton Burbank took over the practice of Dr. Stevenson, who graduated in the 1880s and was elected the first president of the Canadian Dental Association in 1902
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dental articulator

https://mhc.andornot.com/en/permalink/artifact13505
Dates
1930
1955
circa 1930-1955
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020384 a-h
Description
Silver metal dental articulator (a); triangular base with circular indent in middle; tip is round with measurements around edge and slanted forward; two rectangular branches with circles on top come up from back; rectangular cut-outs in circles along with measurements around edges; cylinder sits be…
  5 images  
Accession Number
010020384 a-h
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Impression Technic
Dental Articulators
Denture, Complete
Dental Instruments
Description
Silver metal dental articulator (a); triangular base with circular indent in middle; tip is round with measurements around edge and slanted forward; two rectangular branches with circles on top come up from back; rectangular cut-outs in circles along with measurements around edges; cylinder sits between circles in cut-outs; attached to cylinder is top piece, with circular grinder in middle and rectangular tip; cylindrical holder down from top piece, hits circular tip of base; semi-circular mounting plate (b) attached to circle via three cylindrical legs, sits in circular indent of base; held in place via cylinder (c); second cylinder (d) slides into middle of top piece; v-shaped rest (e) mounted in piece of metal fits underneath circular tip of base with screw (f); screws on bottom of rest can change angle of rest; cylindrical pointer (g) slides into hole on bottom of holder that comes down from top piece, held in place via screw (h)
Number Of Parts
8
Part Names
a - articulator - Size: Length 17.8 cm x Width 16.4 cm x Depth 15.0 cm
b - mount - Size: Length 8.9 cm x Width 8.1 cm x Depth 4.3 cm
c - cylinder - Size: Length 9.2 cm x Width 1.8 cm x Depth 0.4 cm
d - cylinder - Size: Length 9.5 cm x Width 2.0 cm x Depth 0.4 cm
e - stand - Size: Length 6.0 cm x Width 3.1 cm x Depth 2.0 cm
f - screw - Size: Length 1.6 cm x Diam. 1.0 cm
g - point - Size: Length 8.0 cm x Diam. 0.7 cm
h - screw - Size: Length 1.5 cm x Diam. 1.0 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Site Made (Country)
United States of America
Dates
1930
1955
circa 1930-1955
Date Remarks
Based on donors remarks
Material
metal: silver
Inscriptions
(a) Engraved at top: "1512 // ROTARY OCCLUSAL // - GRINDER - // MADE IN U.S.A. // PAT. NOS. // 1636304 // 1637569"; engraved on bottom: "12 15 // HOUSE ARTICULATOR // INCORPORATING // NEEDLES INCISAL GUIDE UNIT"; hand-engraved on bottom: "D. // WALLER"
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Metal slightly tarnished, especially on cylinders (c, d)
Copy Type
Original
Reference Types
Person
Internet
JPG
Reference Comments
Dr. Ralph Crawford, Dr. David Waller; "Free Patents Online" website
CD #1
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. David Waller from Prince George, British Columbia; it belonged to his father, Dr. Denning Edward Waller (1923-1997); Dr. D. E. Waller was raised in Vancouver before becoming an RAF pilot during WWII; he attended the University of Washington Dental School from 1949-1953, and practiced in Prince George, BC until his death; he was president of the BC Dental Association from 1966-67 and president of the College of Dental Surgeons of BC from 1973-74; he most likely received the articulator as a student, since House articulators were used by some dental schools; the rotary occlusal grinder on top of the articulator was part of the original design patented in 1927 by Dr. Milus M. House, while the articulator as a whole is a later design
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dental automatic mallet

https://mhc.andornot.com/en/permalink/artifact13295
Dates
1915
1930
circa 1915-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020173
Description
Box for an automatic mallet; rectangular hollow brown wooden box with one closed end and circle-shaped opening at other end; white paper label printed with green ink and stamped with purple ink affixed to four sides of box; label features product name and patent date, manufacturer's information, de…
  2 images  
Accession Number
010020173
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Instruments
MM= Dentistry, Operative -- mallet
Description
Box for an automatic mallet; rectangular hollow brown wooden box with one closed end and circle-shaped opening at other end; white paper label printed with green ink and stamped with purple ink affixed to four sides of box; label features product name and patent date, manufacturer's information, description of product and a life-size illustration of the mallet.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
S.S. White Dental Mfg. Co.
Site Made (City)
Philadelphia
Site Made (State)
Pennsylvania
Site Made (Country)
United States of America
Dates
1915
1930
circa 1915-1930
Date Remarks
Based on supplier's catalogue
Material
wood: brown
paper: white
ink: green, purple
Inscriptions
Printed on label: "THE S. S. WHITE DENTAL MF'G. CO. // MADE IN U.S.A. // SIX VARIATIONS OF STROKE // TWELVE DISTINCTLY DIFFERENT BLOWS. // S. S. WHITE AUTOMATIC MALLET // PATENTED MARCH 17, 1903 D.R.G.M. 189147"; stamped on label: "629290 // Oil Before Using // 02377"
Permanent Location
Storage Room 0010
0010-B
Dimension Notes
Length 17.0 cm x Width 2.4 cm x Depth 2.4 cm
Condition Remarks
Paper label is very faded, worn, and torn in places
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-F”, S.S. White Dental Mfg. Co., 1916, p. 37 (S. S. White Automatic Mallet)
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; mallets were used to condense gold fillings; an S. S. White catalogue states the mallet was a radical departure from older designs; the mallet's blow or stroke could be changed instantly by the guiding of the operator's fingers without having to remove the plugger point from the end
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dental base plates

https://mhc.andornot.com/en/permalink/artifact13702
Dates
1930
1940
circa 1930-1940
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020534 a-s
Description
Dental base plates come in a cream coloured, rectangular cardboard box with blue paper covering the outside; box top (a) has a white sticker printed on in blue ink with a blue and light green border; the product and company information is printed on both sides and the top; there are two semi-circul…
  3 images  
Accession Number
010020534 a-s
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Materials
Dental Prosthesis
Denture, Partial
Description
Dental base plates come in a cream coloured, rectangular cardboard box with blue paper covering the outside; box top (a) has a white sticker printed on in blue ink with a blue and light green border; the product and company information is printed on both sides and the top; there are two semi-circular cutouts on the long edges; box bottom (b) is also covered in blue paper and has two rectangular white stickers stuck to the bottom on either end leaving the blue paper exposed in between; there are 17 base plates in total, 15 identical upper base plates (c-q) which are made of hard brown vulcanite and cut in a rounded trapezoid like shape; all upper base plates are stamped with a logo which consists of the letters 'DS' in a circle with a small 'c' to the right; there are two lower base plates (r-s) which are also brown and made of hard vulcanite but are cut in a 'U' shape with ends that flare out slightly.
Number Of Parts
19
Part Names
a - box top - Size: Length 11.5 cm x Width 8.7 cm x Depth 2.7 cm
b - box bottom - Size: Length 10.5 cm x Width 8.0 cm x Depth 2.7 cm
c - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
d - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
e - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
f - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
g - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
h - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
i - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
j - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
k - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
l - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
m - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
n - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
o - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
p - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
q - upper base plate - Size: Length 9.8 cm x Width 6.9 cm x Depth 0.3 cm
r - lower base plate - Size: Length 9.4 cm x Width 6.5 cm x Depth 0.2 cm
s - lower base plate - Size: Length 9.4 cm x Width 6.5 cm x Depth 0.2 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
The Ash-Temple Co. Ltd.
Dates
1930
1940
circa 1930-1940
Date Remarks
Based on company information and donor's remarks
Material
vulcanite: brown
cardboard: cream
paper: blue, white
ink: blue, green
Inscriptions
Printed on the top of (a): "18 // BASE PLATES // MADE EXPRESSLY FOR // The ASH-TEMPLE Co., Ltd."; handwritten on the top of (a): "T"; printed on both sides of (a): "18 // BASE PLATES // The ASH-TEMPLE Co. Ltd. // Lower UPPERS"; stamped into (c-q): "DS" in a circle "c" to the right of the circle
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Box top and bottom show wear; there is staining on (a) and the label has begun to peel off; (b) has stains on the bottom and the inside; base plates all have small white residue on them.
Copy Type
Original
Reference Types
Internet
JPG
Reference Comments
"Canadian Dental Association" website; "Medical Dictionary" website; CD #4
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; dental base plates are melted to form the base of dentures; the Ash-Temple Co. was formed in 1923 when Claudius Ash merged his company with H.P. Temple Co.
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dental bite rim former

https://mhc.andornot.com/en/permalink/artifact13297
Dates
1930
1950
circa 1930-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020175 a-f
Description
Trubyte bite rim former; silver metal arch (a) with curved indents at sides fits into horizontal metal piece (b) with a half-circle in middle and raised sides; rectangular white paper box (d) with lid (c) with white label affixed to top printed with black ink; label states product name, contents of…
  5 images  
Accession Number
010020175 a-f
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Instruments
Dental Restoration, Permanent
Description
Trubyte bite rim former; silver metal arch (a) with curved indents at sides fits into horizontal metal piece (b) with a half-circle in middle and raised sides; rectangular white paper box (d) with lid (c) with white label affixed to top printed with black ink; label states product name, contents of box, manufacturer's information; rectangular instructional pamphlet (e), one white page folded in two and printed with black ink, with black and white photographs instructing how to use bite rim former; brown rectangular envelope for Trubyte 20 degree posterior template (f) printed with black ink on front
Number Of Parts
6
Part Names
a - bite rim former - Size: Length 7.0 cm x Width 4.5 cm x Depth 1.0 cm
b - bite rim former - Size: Length 7.0 cm x Width 3.8 cm x Depth 0.8 cm
c - box lid - Size: Length 8.4 cm x Width 6.5 cm x Depth 1.6 cm
d - box - Size: Length 7.8 cm x Width 6.2 cm x Depth 1.7 cm
e - brochure - Size: Length 15.1 cm x Width 11.7 cm x Depth 0.1 cm
f - envelope - Size: Length 11.1 cm x Width 7.5 cm x Depth 0.1 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
The Dentists' Supply Company of New York
Site Made (City)
New York
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1930
1950
circa 1930-1950
Date Remarks
Based on design
Material
metal: silver
paper: white, brown
ink: black
Inscriptions
(a) Engraved on bite rim former: "621"; (b) engraved on bite rim former: "MADE IN U.S.A. // THE DENTISTS' SUPPLY CO. OF NEW YORK // 621 // THE TRUBYTE BITE RIM FORMER"; (c) printed on label: "TRUBYTE // BITE RIM FORMER // Saves time and eliminates guess-work // Insures proper inclination of the bite rim. // Cast Brass, Nickel Plated // Descriptive circular and directions enclosed. // Made in U.S.A. by // The Dentists' Supply Co. of New York // 220 West 42nd Street NEW YORK"
Permanent Location
(a, b, c, d): Storage Room 0010
0010-B
(e, f): Storage Room 2005
2005-2-5 Box 22
Condition Remarks
Box is darkened, worn, with some water marks; paper worn at folds on (e), (f); envelope (f) is slit open at side, empty
Copy Type
Original
Reference Types
JPG
Reference Comments
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. John Lyon from Kingston, Ontario
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dental bur holder

https://mhc.andornot.com/en/permalink/artifact13682
Dates
1920
1950
circa 1920-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020514
Description
Dental bur holder is made of white porcelain and is cylindrical in shape; the sides of the holder are raised slightly higher than the centre portion; there are three semi-circular grooves placed equally around the outside of the holder that extend from the bottom of the holder to just below the rim…
  5 images  
Accession Number
010020514
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Instruments
MM= Dentistry, Operative -- bur
Description
Dental bur holder is made of white porcelain and is cylindrical in shape; the sides of the holder are raised slightly higher than the centre portion; there are three semi-circular grooves placed equally around the outside of the holder that extend from the bottom of the holder to just below the rim of the top; there are holes that are pierced in the top of the rim of the holder, with three sets of thirteen holes; the lower central portion of the holder also is pierced with holes arranged circularly in the holder; there are five holes that surround the metal handle that is located in the middle of the holder; these holes peirce the enter depth of the holder and are larger then the other holes; the silver metal handle has a slightly rounded top, and is fastened to the holder by way of a screw in the base.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Dates
1920
1950
circa 1920-1950
Date Remarks
Date based on similar artefacts in the collection
Material
porcelain: white
metal: grey
Permanent Location
Storage Room 0010
0010-B
Dimension Notes
Depth 8.6 cm x Diam. 9.2 cm
Condition Remarks
Shows signs of wear; porcelain finish is discoloured; there are numerous chips around the bottom and the semi-circular indents in the side of the holder; there are cracks along the top rim; the metal handle leans to one side and is tarnished and discoloured.
Copy Type
Original
Reference Types
Other
JPG
Reference Comments
Similar to 010.020.204 a-g; CD #5
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; excavating burs were used for cutting dentin
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dental burnisher

https://mhc.andornot.com/en/permalink/artifact13344
Dates
1920
1950
circa 1920-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020222
Description
Dental burnisher; octagonal silver metal handle engraved with concentric circles for grip; end becomes smooth, tapers then branches into two tips; one with a rounded flat end and the other covered with a smooth sphere.
  3 images  
Accession Number
010020222
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Instruments
MM= Dentistry, Operative -- burnisher
Description
Dental burnisher; octagonal silver metal handle engraved with concentric circles for grip; end becomes smooth, tapers then branches into two tips; one with a rounded flat end and the other covered with a smooth sphere.
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Claudius Ash & Sons
Site Made (City)
London
Site Made (Country)
England
Dates
1920
1950
circa 1920-1950
Date Remarks
Based on supplier's catalogue
Material
metal: silver
Inscriptions
Engraved on handle: "ASH ENGLAND 20"; scratched into handle: "I. F. G."
Permanent Location
Storage Room 0010
0010-B
Dimension Notes
Length 14.9 cm x Width 1.3 cm x Depth 0.6 cm
Condition Remarks
Some adhesive remnants on handle
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"Catalogue of Surgical Instruments & Appliances", Down Bros. Ltd., 1906, p. 951 (similar to model #4164-U)
CD #10
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; burnishers were used to smooth out fillings after being placed in the cavity
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Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020001 a-b
Description
Metal dental chair (a), enamelled in beige; round iron base tapers up toward the seat; seven levers raise level of chair and recline it via an internal hydraulic system; chair has stuffed red fabric-covered seat (b) and movable seat back; fabric on seat back bolted with red metal studs along border…
  4 images  
Accession Number
010020001 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Care -- instrumentation
Dental Equipment
MM= Interior Design and Furnishings -- furniture, dental
Description
Metal dental chair (a), enamelled in beige; round iron base tapers up toward the seat; seven levers raise level of chair and recline it via an internal hydraulic system; chair has stuffed red fabric-covered seat (b) and movable seat back; fabric on seat back bolted with red metal studs along border; seat back moves forward, levelling with arm-rests, to create seat for a small child; child sits on seat back and leans against back of chair, which is metal covered with red fabric; adjustable metal arm-rests enamelled in black; footrest with green rubber inserts and metal adjustable toe rest with an etched geometrical design; self-adjusting rounded metal head rest has two black leather-covered cushions on either side and is height-adjustable via two levers on back of chair.
Number Of Parts
2
Part Names
a - chair - Size: Length 1.24 m x Width 1.19 m x Depth 44.0 cm
b - seat - Size: Length 46.0 cm x Width 44.0 cm x Depth 16.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on supplier's catalogue
Material
metal: silver, brown
enamel: cream, red
fabric: red
leather: black
rubber: green
Permanent Location
Storage Room W2
W2-538-2-1
Condition Remarks
Clear tape around base of chair; paint chipping around base; seat fabric worn, especially at corners; holes in bottom of seat; seat back scratched and worn; metal rusted on some levers, toe rest, headrest.
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-E”, S.S. White Dental Mfg. Co., 1917, p. 8 (similar to S.S. White Diamond Chair), p. 22 (similar to White Child's Chair)
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Brian N. Friesen from Winnipeg, Manitoba
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Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020002 a-b
Description
Wooden dental chair (a); round metal and wood base which tapers up toward the seat; seven levers raise level of chair and recline it via an internal hydraulic system; stuffed black leather-covered seat (b) and back; seat back fabric bolted with metal studs along border; adjustable wooden arm-rests …
  2 images  
Accession Number
010020002 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Care -- instrumentation
Dental Equipment
MM= Interior Design and Furnishings -- furniture, dental
Description
Wooden dental chair (a); round metal and wood base which tapers up toward the seat; seven levers raise level of chair and recline it via an internal hydraulic system; stuffed black leather-covered seat (b) and back; seat back fabric bolted with metal studs along border; adjustable wooden arm-rests enamelled in black on top; footrest with white and grey knit-patterned rubber inserts with metal border and supported by wooden base; self-adjusting rounded metal head rest with two black leather-covered cushions on either side and is height-adjustable via two levers on back of chair; manufacturer's name painted in gold on wooden seat front; decorative gold paint around footrest, seat, base; manufacturer's label affixed to chair with list of patents and years
Number Of Parts
2
Part Names
a - chair - Size: Length 1.16 m x Width 1.16 m x Depth 45.8 cm
b - cushion - Size: Length 46.0 cm x Width 45.0 cm x Depth 7.0 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Ritter Dental Mfg. Co.
Site Made (City)
Rochester
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on supplier's catalogue
Material
wood: brown
metal: silver, brown
leather: black
rubber: white, grey
paint: yellow
enamel: black
Inscriptions
(a) Painted on front of chair: "Ritter"; embossed on rubber lever: "Ritter"; painted on back of base: "SPEED REGULATOR"; engraved on bottom of footrest: "c 136"; printed underneath seat cushion: "RITTER CHAIR // RITTER DENTAL MFG. CO. INC. ROCHESTER, N.Y. // SERIAL NO. 54717 MADE IN U.S.A."; painted underneath seat cushion: "SEE INSTRUCTIONS // ON UPHOLSTERED SEAT"
Permanent Location
Storage Room W2
W2-538-3-1
Condition Remarks
Metal rusted on bottom of foot rest, headrest, base and some levers; crack on bottom of base; leather on seat and headrest is new
Copy Type
Original
Reference Types
Book
Internet
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-E”, S.S. White Dental Mfg. Co., 1917, p. 8 (similar to S.S. White Diamond Chair); "A Catalogue of Ritter Dental Equipment", Ritter Dental Mfg. Co., 1919, p. 8; "Schraeder Electronics" website
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Christopher Clark from Vancouver, British Columbia; Frank Ritter had settled in Rochester, NY as a cabinet-maker before manufacturing the Stuck dental chair in 1888, the first chair with a round metal base; later models featured the first use of hydraulics to raise and lower the chair, a revolution for its time; the design was not significantly changed until the 1960s
Images
Less detail
Dates
1920
1940
circa 1920-1940
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020007 a-f
Description
Metal dental chair (a) with white enamelled curved seat back with long oval cut-outs; round black metal seat covered in black leather; two curved metal armrests (b, c) covered with black leather on top, attached via metal screws (e, f) to chair; metal headrest (d), with two rectangular black leathe…
  2 images  
Accession Number
010020007 a-f
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Care -- instrumentation
Dental Equipment
MM= Interior Design and Furnishings -- furniture, dental
Description
Metal dental chair (a) with white enamelled curved seat back with long oval cut-outs; round black metal seat covered in black leather; two curved metal armrests (b, c) covered with black leather on top, attached via metal screws (e, f) to chair; metal headrest (d), with two rectangular black leather pads at top, attached by long metal pole to chair; chair has four legs which curve outward, creating a wide base
Number Of Parts
6
Part Names
a - chair - Size: Length 92.5 cm x Width 62.5 cm x Depth 37.0 cm
b - arm rest - Size: Length 52.0 cm x Width 34.2 cm x Depth 9.2 cm
c - arm rest - Size: Length 52.0 cm x Width 34.2 cm x Depth 9.2 cm
d - headrest - Size: Length 39.0 cm x Width 16.2 cm x Depth 10.5 cm
e - screw - Size: Length 9.0 cm x Width 6.0 cm x Depth 2.5 cm
f - screw - Size: Length 9.0 cm x Width 6.0 cm x Depth 2.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Dates
1920
1940
circa 1920-1940
Date Remarks
Based on donor's remarks
Material
metal: brown
enamel: white
leather: black
Permanent Location
Storage Room W2
W2-538-3-1
Condition Remarks
Metal heavily corroded on arm rests and headrest; slit in leather on right arm rest; small tears in leather on left arm rest; slight rust on metal on seat; enamel mostly gone and metal rusting at bottom of chair legs; #2: discovered that the cast-iron holder for the right chair arm rod was snapped off with the loose portion still inside the armpiece; assumption the breakage is from several visitors during the summer that repeatedly shook the arms to see how stable the chair was.
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Dr P. Ralph Crawford
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this type of examination chair was possibly used in hospital examination rooms or doctors' offices in the early 20th century
Exhibit History
On exhibit, "Teeth in Time," Case #4, 29 March 2011 - November 2014
Images
Less detail
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020010 a-f
Description
Metal dental chair (a), enamelled in beige, composed of round black and silver metal base which tapers up toward seat; six levers raise level of chair and recline it via an internal hydraulic system; stuffed black leather-covered seat (b) and seat back; adjustable wooden arm-rests enamelled in brow…
  2 images  
Accession Number
010020010 a-f
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Care -- instrumentation
Dental Equipment
MM= Interior Design and Furnishings -- furniture, dental
Description
Metal dental chair (a), enamelled in beige, composed of round black and silver metal base which tapers up toward seat; six levers raise level of chair and recline it via an internal hydraulic system; stuffed black leather-covered seat (b) and seat back; adjustable wooden arm-rests enamelled in brown on top; footrest with black rubber inserts with silver metal border and supported by beige metal base; self-adjusting rounded metal head rest with two black leather-covered pads on either side is height-adjustable via two levers on back of chair; one lever (c), one white plastic knob (d), and two loose metal parts (e, f); manufacturer's label affixed to chair with list of patents and years
Number Of Parts
6
Part Names
a - chair - Size: Length 1.20 m x Width 1.13 m x Depth 55.0 cm
b - cushion - Size: Length 46.0 cm x Width 44.0 cm x Depth 10.0 cm
c - lever - Size: Length 12.0 cm x Width 3.4 cm x Depth 2.0 cm
d - knob - Size: Length 6.4 cm x Diam. 4.0 cm
e - part - Size: Length 16.4 cm x Width 3.6 cm x Depth 0.4 cm
f - part - Size: Length 2.3 cm x Diam. 2.0 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Ritter Dental Mfg. Co.
Site Made (City)
Rochester
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on supplier's catalogue
Material
metal: silver, brown
leather: black
enamel: beige, brown
fabric: red
rubber: black
plastic: white
paint: black
Inscriptions
Embossed on rubber lever: "Ritter"; printed underneath seat cushion: "RITTER CHAIR // RITTER DENTAL MFG. CO. INC. ROCHESTER, N.Y. // SERIAL NO. 68195 MADE IN U.S.A."
Permanent Location
Storage Room W2
W2-538-2-1
Condition Remarks
Enamel chipped throughout chair; leather worn at top of seat back; paint chipped on base
Copy Type
Original
Reference Types
Book
Internet
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-E”, S.S. White Dental Mfg. Co., 1917, p. 8 (similar to S.S. White Diamond Chair); "A Catalogue of Ritter Dental Equipment", Ritter Dental Mfg. Co., 1919, p. 8; "Schraeder Electronics" website.
CD #9
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Christopher Clark from Vancouver, British Columbia; Frank Ritter had settled in Rochester, NY as a cabinet-maker before manufacturing the Stuck dental chair in 1888, the first chair with a round metal base; later models featured the first use of hydraulics to raise and lower the chair, a revolution for its time; the design was not significantly changed until the 1960s
Images
Less detail

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