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dental film hanger

https://mhc.andornot.com/en/permalink/artifact426
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
995004010
Description
Dental film hangers which consist of a rectangular frame of flat metal sections with an attached flat metal handle which is curved into a semi-circle at the top. The hanger is divided down the middle with a non-moving central support of two attached flat metal pieces. The two sides each consist of…
  1 image  
Accession Number
995004010
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
X-Ray Film
Radiography, Dental -- instrumentation
Description
Dental film hangers which consist of a rectangular frame of flat metal sections with an attached
flat metal handle which is curved into a semi-circle at the top. The hanger is divided down the
middle with a non-moving central support of two attached flat metal pieces. The two sides each
consist of two central pieces of flat metal with seven almond-shaped pieces cut out of each.
The middle sections are hinged which allows them to be swivelled sideways. There is a moving
metal tab on the handle which can slide down and lock the middle sections into place
Number Of Parts
1
Maker
Bar Ray Products, Inc.
Site Made (City)
Brooklyn
Site Made (State)
New York
Site Made (Country)
United States of America
Material
metal: silver
Inscriptions
Stamped into handle are the words, "Bar-Ray Bklyn 32, N.Y."
Permanent Location
Storage Room 0010
0010-F3-3
Dimension Notes
Length: 31.0 cm. x Width: 8.8 cm.
Condition Remarks
Hangers had been taped with masking tape in several spots; this tape had deteriorated and
fallen off, leaving residue behind; hangers are complete and the moving parts move freely
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Nancy Chisholm; CD #4
Research Facts
Hanger labelled by School of X-Ray, "Dental film hangers - Hi Tech version"
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dental film hanger

https://mhc.andornot.com/en/permalink/artifact427
Dates
1950
circa 1950
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
995004011
Description
Hanger for processing dental x-ray films which consists of a central flat metal bar which is curved into a half circle at the top. Perpendicular to the central metal bar are seven small flat vertical bars, spaced 2.7 cm apart from each other. On each end of the vertical bars is a clip (14 in tota…
  1 image  
Accession Number
995004011
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
X-Ray Film
Radiography, Dental -- instrumentation
Description
Hanger for processing dental x-ray films which consists of a central flat metal bar which is
curved into a half circle at the top. Perpendicular to the central metal bar are seven small
flat vertical bars, spaced 2.7 cm apart from each other. On each end of the vertical bars is
a clip (14 in total) which was made to hold the dental film.
Number Of Parts
1
Maker
Eastman Kodak Co.
Site Made (City)
Rochester
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1950
circa 1950
Date Remarks
From the 1950's
Material
metal: silver
Inscriptions
Stamped into the handle of the central bar are the words "No. 4(S) Dental Film Developing Hanger
Made by Eastman Kodak Co. Rochester, N.Y. U.S.A."; the 14 clips each have "EKC" stamped on them
Permanent Location
Storage Room 0010
0010-F3-3
Dimension Notes
Length: 29.4 cm. x Width: 5.9 cm.
Condition Remarks
The hanger had been taped with masking tape in several spots; this tape had deteriorated
and fallen off, leaving residue behind; the hanger is complete and all 14 clips work
properly
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Nancy Chisholm; CD #4
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dental x-ray tube

https://mhc.andornot.com/en/permalink/artifact430
Dates
1920
circa 1920
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004014
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube; within the glass tube is a heavy metal rod and a copper section; the top of the tube has a piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming out of it
  2 images  
Accession Number
995004014
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- tube
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube;
within the glass tube is a heavy metal rod and a copper section; the top of the tube has a
piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming
out of it
Number Of Parts
1
Maker
Dunlee Corporation
Site Made (City)
Bellwood
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1920
circa 1920
Date Remarks
1920's or 1930's
Material
metal: dark grey; brown
plastic (or laminated fabric?): brown; black
glass: clear
cork: beige
Inscriptions
Label on outside tube reads, "Dunlee X-Ray Tube Type 042 Focus T MM Anode No. 12204"
Permanent Location
Storage Room 0010
0010-F4-11
Dimension Notes
Length: 21.0 cm. x Width: 6.5 cm. x Depth: 6.2 cm.
Condition Remarks
The tube was dusty and dirty; the outer coverings of the two wires leading from the inner tube
are cracked
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.; Bernie Ziomkiewicz; CD #4
Research Facts
Likely used as a dental x-ray tube due to its being smaller than the average x-ray tube
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mobile dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact13103
Dates
1950
1960
circa 1950-1960
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020014
Description
Mobile dental x-ray unit, enamelled in black and silver; triangular base with wheels on bottom; black rubber electrical wire goes in and out of unit; silver metal tube leads up to black control box, with knob to adjust power and gauge showing number of volts; detachable black hand-held control hook…
  1 image  
Accession Number
010020014
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Mobile dental x-ray unit, enamelled in black and silver; triangular base with wheels on bottom; black rubber electrical wire goes in and out of unit; silver metal tube leads up to black control box, with knob to adjust power and gauge showing number of volts; detachable black hand-held control hooks onto control box, has coiled black rubber electrical wire which plugs into unit; metal tube has rubber covering directly above control box; metal tube continues upwards, bending at a right angle, then again, so the head of the unit is pointed downward; tube has hinges at right angles to facilitate smooth movement; adjustable head is attached to tube via hinge; head has cylindrical base with white notches showing angles from 0 to 90, silver cylinder with black cone-shaped end
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Philips Electronic Equipment Ltd.
Site Made (Country)
Holland
Dates
1950
1960
circa 1950-1960
Date Remarks
Based on donors remarks
Material
metal: silver
enamel: black, silver, white
rubber: black, brown
glass: clear
paper: white
plastic: white
Inscriptions
Printed on sticker on control box: "THE CITY OF CALGARY HEALTH DISTRICT // LOCAL BOARD OF HEALTH // No. H 0884"; printed on control box: "WARNING: X-RAYS EMITTED // WHEN THIS CONTROL IS // ACTIVATED. // TO BE USED BY AUTHORIZED // PERSONS ONLY"; printed on unit: "ORALIX"; "DISTRIBUTED BY // PHILIPS ELECTRONIC EQUIPMENT LTD. // TORONTO // TYPE ORALIX SER. // INPUT 110 // VOLTS 60 // CYCLES 1 PHASE // RATING L.T. V.A. MOM. 770 V.A"; "PHILIPS // MADE IN HOLLAND"; "CAUTION // This equipment has been approved by the // CSA Testing Laboratories with regards to // safety from electrical shock and fire hazard. // The Laboratories have not investigated the // physiological effects. // 4507 100 00001"; printed on unit and control box: "PHILIPS"; printed on sticker on unit: "SPECIAL // Testing Laboratories // S 77549 // ACCEPTANCE"
Permanent Location
Storage Room W2
W2-538-4-1
Dimension Notes
Length 1.59 m x Width 69.0 cm x Depth 59.5 cm
Condition Remarks
Glass cracked on control box; enamel on base slightly scratched; plastic holding cone and cylinder at head cracked
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Dr. John J. Willey
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 originally owned and used by the Oral Health Program, Calgary Health Services, and was donated by Dr. John J. Willey from Calgary, Alberta
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mobile dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact13106
Dates
1925
1935
circa 1925-1935
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020017
Description
Mobile metal dental x-ray unit, sitting on rectangular wooden base; black rubber electrical wire goes in and out of unit; black metal tube leads upward, attaches to black metal tube curved down; adjustable head is attached to tube via hinge; plaques showing angle degrees on sides of hinges; black c…
  2 images  
Accession Number
010020017
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Mobile metal dental x-ray unit, sitting on rectangular wooden base; black rubber electrical wire goes in and out of unit; black metal tube leads upward, attaches to black metal tube curved down; adjustable head is attached to tube via hinge; plaques showing angle degrees on sides of hinges; black cylinder leads to clear glass sphere next to light and brown cone-shaped end; curved black piece of metal surrounds cylinder; second black tube rises from unit, holds rubber wires and small metal coils that attach to main arm; two gauges covered in glass, composed of white paper printed with black ink, on top of unit, one showing volts and the other milliamperes; black hand-held control hooks onto front of unit, attached via brown rubber electrical wire; round black knob to control volts and switch to raise milliammeters on front of unit; four black rubber wheels on bottom
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Weber Dental Mfg. Co.
Site Made (City)
Canton
Site Made (State)
Ohio
Site Made (Country)
United States of America
Dates
1925
1935
circa 1925-1935
Date Remarks
Based on donor's remarks
Material
wood: brown
metal: silver
rubber: black, brown
enamel: black, brown
glass: clear
paint: yellow
Inscriptions
Printed inside gauges on top: "MILLIAMPERES D.C. // WEBER // WESTONS ELECTRICAL INSTRUMENT CORP. NEWARK, N.J., U.S.A. // MODEL 301 NO. 8413[ILLEG.]", "VOLTS A.C. // WEBER // WESTONS ELECTRICAL INSTRUMENT CORP. NEWARK, N.J., U.S.A. // MODEL 476 NO 141729"; printed on side of unit: "MILLIAMMETERS // RAISE --;", "IF HANDLE IS HERE MOVE HANDLE //
Permanent Location
Storage Room W2
W2-538-4-1
Dimension Notes
Length 2.11 m x Width 52.0 cm x Depth 48.0 cm
Condition Remarks
Wooden unit scratched, varnish worn in places; thick black cord going from unit to arm very deteriorated; most rubber electrical cords hardened and cracking
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 item was donated by Dr. Irwin G. Kreisman from Ottawa, Ontario
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mobile dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact13126
Dates
1908
1920
circa 1908-1920
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020037 a-l
Description
Rectangular varnished wooden mobile x-ray unit (a); three drilled holes at top; cabinet door at front with round gold metal knob at right, two metal hinges at left, thin cut-out section at top; manufacturer's logo painted in gold above door; panel on left side of cabinet with grey metal dial pointi…
  3 images  
Accession Number
010020037 a-l
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Rectangular varnished wooden mobile x-ray unit (a); three drilled holes at top; cabinet door at front with round gold metal knob at right, two metal hinges at left, thin cut-out section at top; manufacturer's logo painted in gold above door; panel on left side of cabinet with grey metal dial pointing to twelve raised metal circles, two switches below for the motor and the x-ray; other side of panel, inside cabinet, has seven metal coils attached with black fabric-covered rubber electrical wires; cabinet interior has one brown wooden shelf in middle; cabinet fits onto base (b); door on front with clear glass knob at right and two silver metal hinges on left side; two pieces of green wood at sides of interior for support; four holes cut into bottom; base is mounted on four wheels; silver metal pole (c) with small three-spoked metal wheel on end; black-enamelled attachment in middle with flat silver metal knob, black knob, black circular metal piece with screw coming out; two metal wheels with five curved spokes, brown-enamelled with gold decoration, mounted on three parallel metal bars bolted together (d); one silver metal pole attached at top; metal ammeter gauge with clear glass covering and silver face (e); black metal dial points to numbers 3-5 written in black; silver covering on bottom half of gauge has cut-out showing metal dial gears; similar smaller milliammeter gauge has numbers 1-60 written in black (f); both gauges have black metal on bottom; black metal cone mounted on red metal round base (g); metal pole with metal attachment near bottom and black metal end (h) ; metal wheel mounted on a rectangular piece of metal with a thin metal wire wrapped around (i); green fabric-covered wire with frayed ends (j); green fabric-covered coiled twisted wire with one end frayed and the other ending in two black cylindrical coverings and metal hook ends (k); two more metal wheels with wires wound around them and attached to a black rubber electrical wire ending with a metal plug (l)
Number Of Parts
12
Part Names
a - cabinet - Size: Length 88.5 cm x Width 50.0 cm x Depth 38.8 cm
b - base - Size: Length 54.0 cm x Width 40.0 cm x Depth 63.4 cm
c - pole - Size: Length 1.66 m x Width 22.0 cm x Depth 6.3 cm
d - pulley - Size: Length 59.0 cm x Width 21.0 cm x Depth 2.8 cm
e - gauge - Size: Depth 8.1 cm x Diam. 14.1 cm
f - gauge - Size: Depth 7.0 cm x Diam. 8.0 cm
g - cone - Size: Length 17.3 cm x Diam. 13.0 cm
h - metal tool - Size: Length 31.6 cm x Width 11.0 cm x Depth 6.0 cm
i - wheel - Size: Length 11.0 cm x Width 9.4 cm x Depth 2.2 cm
j - wire - Size: Length 1.05 m x Diam. 0.7 cm
k - wire - Size: Length 86.0 cm x Diam. 0.5 cm
l - wheels and wires - Size: Length 14.0 cm x Width 9.4 cm x Depth 2.2 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Victor Electric Corp.
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1908
1920
circa 1908-1920
Date Remarks
Based on company name
Material
wood: red, brown
metal: silver, yellow
glass: clear
enamel: silver, black
fabric: black, green
rubber: black
Inscriptions
(a) Printed on bottom: "TRADE VICTOR MARK // ELECTRIC CORP. CHICAGO, USA // 220V 600Y NO. 662 // MANUFACTURED UNDER U.S. PATENTS DATED // NOV. 1, 1904 (TWO PATENTS), // APR. 5, 1908 // & UNDER THE FOLLOWING FOREIGN PATENTS // NO. 395785 FRANCE, NO. 259695 GERMANY // NO. 13854-1908, GREAT BRITAIN"; printed above switches: "MOTOR", "X-RAY"; printed below switches: "LINE", "FOOT SWITCH"; (e) printed on gauge: "A.C. AMMETER // VICTOR"; (f) printed on gauge: "A.C. MILLIAMMETER // VICTOR"
Permanent Location
(a-c, g-l) Storage Room W2
W2-536-3-1
(d, f) Storage Room W2
W2-536-4-1
(e) Storage Room W2
W2-536-4-2
Condition Remarks
Red varnish coming off unit; wood generally scratched and dented; knobs on (a) and (b) are loose; handle on right switch on (a) is loose; rubber wires are brittle, fabric is frayed, wires are broken off at ends; metal on cone, small wheels is corroded; metal on (c) is tarnished, worn
Copy Type
Original
Reference Types
Person
Book
Internet
JPG
Reference Comments
"Dental Collectibles & Antiques", William and Jean G. Carter, 1992, p. 12 (similar to #046); "Gendex Dental Systems" website; Allan Quackenbush
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 Allan Quackenbush from Thunder Bay, Ontario; it was owned by his father, Dr. Howard Quackenbush, who graduated from the University of Toronto in the early 1920s; the Victor Electric Corporation began making x-ray machines in 1896; they became the Victor X-Ray Corporation in 1920, were acquired by General Electric in 1926, and by 1930 the company was renamed the General Electric X-Ray Corporation
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mobile dental x-ray unit stand

https://mhc.andornot.com/en/permalink/artifact13107
Dates
1930
1940
circa 1930-1940
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020018
Description
Mobile beige-enamelled metal dental x-ray unit stand; black-enamelled top; two gauges in black-enamelled case, one for volts, one for milliamps, with clear glass coverings and printed with black ink on white paper; round black knob controls voltage on top of unit; black hand-held control shows corr…
  2 images  
Accession Number
010020018
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Equipment and Supplies, Hospital
Radiography, Dental -- instrumentation
MM= Interior Design and Furnishings -- furniture, dental
Description
Mobile beige-enamelled metal dental x-ray unit stand; black-enamelled top; two gauges in black-enamelled case, one for volts, one for milliamps, with clear glass coverings and printed with black ink on white paper; round black knob controls voltage on top of unit; black hand-held control shows correct angle of x-ray and amount of time recommended per tooth, hooks onto side of unit; on and off switches on top and side of stand
Number Of Parts
1
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
1930
1940
circa 1930-1940
Date Remarks
Based on donor's remarks
Material
metal: silver
enamel: beige, black, white
rubber: black
fabric: black
glass: clear
paper: white
Inscriptions
Printed on top of unit: "X-RAY DENTAL UNIT // MODEL "B" // VOLTS 110 // WATTS 600 // SERIAL NO. 882443 // MANUFACTURED BY // Ritter Dental Mfg. Co. Inc. // ROCHESTER, NEW YORK // MADE IN U.S.A."; printed in black ink on gauges on top of unit: "VOLTMETER // Ritter // WESTON // MODEL 476 NO. 150878", "MILLIAMMETER // NEVER USE MORE THAN 10 MILLIAMPS // Ritter // WESTON // MODEL 301 NO. 1162630"; printed on handle: "SERIAL NO. // 10B2329 // DESIGN PATENT AUG 9, 1921 JULY 28, 1925 // OTHER PATENTS PENDING"
Permanent Location
Storage Room W2
W2-536-1-1
Dimension Notes
Size: Length 1.59 m x Width 36.0 cm x Depth 25.5 cm
Condition Remarks
Rubber electrical cord hardened, cracked and broken; enamel heavily chipped at bottom of stand; half of plaque showing seconds on hand-held control is broken off
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 item was donated by Dr. Terry Kearns from Sault Ste Marie, Ontario
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Ritter dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact11697
Dates
1950
circa 1950
Collection
Hotel Dieu Hospital Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
997010007 a-d
Description
Ritter dental x-ray unit consists of a vertical metal (a) carcass with switch on side and dials on top; cloth-braided cord from side of carcass ends in plastic handpiece with timer and an electrical cord and plug extends from base; carcass supports two gages and a vertical shaft with folding arm; t…
  2 images  
Accession Number
997010007 a-d
Collection
Hotel Dieu Hospital Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Ritter dental x-ray unit consists of a vertical metal (a) carcass with switch on side and dials on top; cloth-braided cord from side of carcass ends in plastic handpiece with timer and an electrical cord and plug extends from base; carcass supports two gages and a vertical shaft with folding arm; two film dispensers are attached to shaft; arm attaches to (b) x-ray unit which consists of metal body, with pivoting pointer cone at one end and threaded rod at the other end; also included are a small loose metal (c) pedal, and a plastic (d) film accessory.
Number Of Parts
4
Part Names
a - carcass - Size: Length 2.24 m x Width 60.0 cm x Depth 25.0 cm
b - x-ray unit - Size: Length 60.0 cm x Width 42.0 cm x Depth 20.0 cm
c - pedal - Size: Length 5.0 cm x Width 4.5 cm x Depth 3.5 cm
d - film accessory - Length 4.4 cm x Width 3.2 cm x Depth 0.1 cm
Provenance
Used at Hotel Dieu Hospital
Maker
Ritter Company, Inc.
Site Made (City)
Rochester
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1950
circa 1950
Date Remarks
Similar object appears in Ritter Dental Company website
Material
metal: tan, silver, black
plastic: black, tan, white, seafoam
fabric: black
glass: transparent
Inscriptions
Printed on sticker affixed to side of carcass: "Ritter // Dual-X"
Embossed on metal plate affixed to side of carcass: "MODEL D // SERIAL NO. 8D4158"
Printed on sticker attached to film dispencer: " CAUTION // X-RAYS // ATTENTION // RAYONS-X"
Embossed on film dispenser: "DES. PATENT // NO. 153160"
Embossed on metal plate screwed to handpiece: "TEETH // ANGLES SCALE "A" // TIME IN SECONDS // FOCAL SPOT-FILM DISTANCE CONE"
Embossed on metal plate screwed to x-ray unit: "RITTER X-RAY UNIT // MANUFACTURED BY // Ritter Company, Inc. // Rochester, N. Y. // MADE IN THE UNITED STATES OF AMERICA // MODEL D // SERIAL NO. 9D4158"
Imprinted on film accessory: "OPPOSITE // SIDE // TOWARD TUBE // KODAK // ULTRA-SPEED D // SAFETY 1 FILM"
Permanent Location
(a,c,d): Storage Room W1
W1-Corner-NW
(b): Storage Room W1
W1-4-2
Condition Remarks
Carcass has scratches and some deep gouges throughout; film dispensers are tarnished and stained; paint is chipped on base; plastic on electrical cord is cracked; display on handpiece is broken and part is missing; minor rusting on carcass; x-ray unit is scratched and stained; x-ray unit leaking oil and is rusted around bolts; pedal is rusted; film accessory is stained.
Copy Type
Original
Reference Types
Internet
JPG
Reference Comments
"The Golden Years 1920-1959", Ritter Dental Company website, page 4, similar to Ritter's 1930's Model E Unit; copy in donor file; CD #5.
Research Facts
Used for dental x-rays
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wall mounted dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact13125
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020036 a-c
Description
Metal wall mounted x-ray unit, enamelled in red and black to resemble varnished wood (a); I-shaped bracket to be mounted to wall; two pieces of metal lead to wheel at hinge; two more pieces of metal lead down to another hinge with two wheels at either side and metal coiled wire wound around them an…
  2 images  
Accession Number
010020036 a-c
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Metal wall mounted x-ray unit, enamelled in red and black to resemble varnished wood (a); I-shaped bracket to be mounted to wall; two pieces of metal lead to wheel at hinge; two more pieces of metal lead down to another hinge with two wheels at either side and metal coiled wire wound around them and leading into brass tubes; x-ray head, cylinder flattened at one side to fit atop rectangular base, attached via L-shaped piece of metal; black cone with white lines on side at centre of x-ray head base; handle attaches on either side; black-enamelled dials with gold writing on either side of head show angles from 0-90; rectangular control box (b) with sloping top has two gauges with clear glass coverings; silver-enamelled faces with black writing and black dials; bottom halves of gauges have silver coverings with cut-outs showing metal dial gears; left gauge shows ammeter and numbers 0-20, right gauge shows voltmeter and numbers 0-120; box is hollow underneath, with black metal cylinders holding gauges at top; pair of gold metal pliers (c)
Number Of Parts
3
Part Names
a - x-ray - Size: Length 81.0 cm x Width 54.0 cm x Depth 20.5 cm
b - control box - Size: Length 42.7 cm x Width 23.6 cm x Depth 14.9 cm
c - metal tool - Size: Length 11.4 cm x Width 3.1 cm x Depth 1.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Victor X-Ray Corp.
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on donor's remarks
Material
metal: silver, yellow, black, yellow
enamel: red, black, silver, yellow, white
glass: clear
rubber: black
Inscriptions
(a) Printed on x-ray head: "SERIAL NO. 49928 // 104 VOLT 60 CY."; (b) printed on box: "MADE IN // CHICAGO, U.S.A. // TRADE VICTOR MARK // X-RAY CORP. // SERIAL NO. 48383 // 110 VOLT 14 AMP. // 60 CY."; printed on left gauge: "A.C. AMMETER // VICTOR // NO. 5082 // TYPE A O. // MADE IN U.S.A."; printed on right gauge: "A.C. VOLTMETER // VICTOR // NO. 5211 // TYPE A K. // MADE IN U.S.A."
Permanent Location
Storage Room W2
W2-536-4-2
Condition Remarks
Enamel peeling in places on x-ray head, especially at sides; brass tarnished on (a); glass cracked in multiple places on right gauge of (b)
Copy Type
Original
Reference Types
Book
Internet
JPG
Reference Comments
"The American Dentist", Richard Glenner et al., 1990, p. 111; "Gendex Dental Systems" 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. D. Christopher Clark from Vancouver, British Columbia; the Victor Electric Corporation began making x-ray machines in 1896; they became the Victor X-Ray Corporation in 1920, were acquired by General Electric in 1926, and by 1930 the company was renamed the General Electric X-Ray Corporation; as dental equipment became more technologically advanced and more specialized, offices could quickly become cluttered; wall mounted instruments helped make the best use of space available
Images
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wall mounted dental x-ray unit

https://mhc.andornot.com/en/permalink/artifact13131
Dates
1920
1930
circa 1920-1930
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020042
Description
Metal wall mounted x-ray unit, enamelled in black with gold decoration; I-shaped bracket to be mounted to wall; two pieces of metal lead to wheel at hinge; two more pieces of metal lead down to another hinge with two wheels at either side and metal coiled wire wound around them then leading into tw…
  1 image  
Accession Number
010020042
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- machine
Description
Metal wall mounted x-ray unit, enamelled in black with gold decoration; I-shaped bracket to be mounted to wall; two pieces of metal lead to wheel at hinge; two more pieces of metal lead down to another hinge with two wheels at either side and metal coiled wire wound around them then leading into two tubes; x-ray head, cylinder flattened at one side to fit atop rectangular base, attached via L-shaped piece of metal; cone at centre of x-ray head base; handle attaches on either side; black-enamelled dials with gold writing on either side of head show patent numbers and manufacturing information, angles; fabric-covered wire runs around x-ray
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Victor X-Ray Corp.
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1920
1930
circa 1920-1930
Date Remarks
Based on donor's remarks
Material
metal: silver, yellow
enamel: black, yellow
fabric: yellow
rubber: white
Inscriptions
Printed on bracket: "VICTOR // TRADE MARK // REG. US. PAT. OFF. // [Illeg.] CHICAGO, U.S.A."; embossed on x-ray head: "SERIAL NO. 52081 // MADE IN CHICAGO, U.S.A. // VICTOR"; "THE COOLIDGE TUBE HEREIN CONTAINED IS NOT // LICENSED TO BE RE-EXHAUSTED OR // REPAIRED NOR IS THE METAL THEREIN // CONTAINED LICENSED TO BE USED // EXCEPT IN THIS PARTICULAR TUBE"
Permanent Location
Storage Room W2
W2-536-4-2
Dimension Notes
Length 72.0 cm x Width 59.0 cm x Depth 20.5 cm
Condition Remarks
Enamel heavily peeling off x-ray head; rubber on wire brittle, fabric heavily fraying; rust inside cone, around hinges, on metal coiled wire.
Copy Type
Original
Reference Types
Book
Internet
JPG
Reference Comments
"The American Dentist", Richard Glenner et al., 1990, p. 111; "Gendex Dental Systems" 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 Mr. Al Hunter from Winnipeg, Manitoba; the Victor Electric Corporation began making x-ray machines in 1896; they became the Victor X-Ray Corporation in 1920, were acquired by General Electric in 1926, and by 1930 the company was renamed the General Electric X-Ray Corporation; as dental equipment became more technologically advanced and more specialized, offices could quickly become cluttered; wall mounted instruments helped make the best use of space available
Images
Less detail

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