Skip header and navigation

3 records – page 1 of 1.

dental drill unit

https://mhc.andornot.com/en/permalink/artifact13592
Dates
1955
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020448
Description
Stainless steel dental drill unit; rectangular cabinet with glass top on piece of fibreboard, bordered with black plastic and silver metal; silver metal pipe with metal coils holds grey rubber tube; metal drill handle at end; cabinet door opens to motor, pump and green rubber bucket on metal platfo…
Accession Number
010020448
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental High Speed Equipment
Dentistry
Dental Restoration, Permanent
MM= Dentistry, Operative -- drill
Description
Stainless steel dental drill unit; rectangular cabinet with glass top on piece of fibreboard, bordered with black plastic and silver metal; silver metal pipe with metal coils holds grey rubber tube; metal drill handle at end; cabinet door opens to motor, pump and green rubber bucket on metal platform; water travels from bucket through pump and silver metal pipes inside cabinet into grey tubing at top of cabinet and ultimately into drill handle; control switch is on the side of cabinet; rubber wheels at bottom
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Bowen & Company, Inc.
Site Made (City)
Bethesda
Site Made (State)
Maryland
Site Made (Country)
United States of America
Dates
1955
Date Remarks
Based on donor's remarks
Material
metal: silver, brown
fibreboard: brown
paint: black, blue
fabric: yellow
rubber: grey, black
plastic: black
Inscriptions
(a) Printed on unit: "KERN // TURBO-JET DENTAL UNIT // PATENT APPLIED FOR // MANUFACTURED BY // BOWEN & COMPANY, INC. // BETHESDA, MARYLAND"; printed inside unit door: "MADE FROM // ALLEGHENY LUDLUM // STAINLESS STEEL"; painted inside unit: "CAUTION // DISCONNECT MACHINE // FROM SOURCE OF SUPPLY // BEFORE REMOVING THIS // COVER"
Permanent Location
Storage Room W2
W2-536-6-1
Dimension Notes
Length 1.74 m x Width 44.0 cm x Depth 43.0 cm
Condition Remarks
Insulation inside unit is pulling off wall; mineral deposits on internal tubing
Copy Type
Original
Reference Types
Document
Reference Comments
Previous Dental Canada Fund / Crawford Inventory List #: 108-A
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 by Dr. Donald Beauprie from Deep River, Ontario
Less detail

dental drill unit

https://mhc.andornot.com/en/permalink/artifact13102
Dates
1957
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020013 a-b
Description
Metal dental drill unit (a), enamelled in beige; rectangular cabinet with glass top on piece of fibreboard, bordered with black plastic and silver metal; silver metal pipe with metal coils holds grey rubber tube; metal drill handle at end; cabinet door opens to motor, pump and grey rubber bucket on…
  2 images  
Accession Number
010020013 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental High Speed Equipment
Dentistry
Dental Restoration, Permanent
MM= Dentistry, Operative -- drill
Description
Metal dental drill unit (a), enamelled in beige; rectangular cabinet with glass top on piece of fibreboard, bordered with black plastic and silver metal; silver metal pipe with metal coils holds grey rubber tube; metal drill handle at end; cabinet door opens to motor, pump and grey rubber bucket on metal platform, which can be lowered then locked into place via brass handle; water travels from bucket through pump and silver metal pipes inside cabinet, into grey tubing at top of cabinet and ultimately into drill handle; control switch on side of cabinet; metal wheels at bottom; manufacturer's brochure (b) printed with orange and black ink on rectangular white paper, folded in four sections; demonstrates why dentists should choose a Turbo-Jet hydraulic handpiece, lists the high speed diamond instruments available and their prices
Number Of Parts
2
Part Names
a - unit - Size: Length 1.60 m x Width 44.3 cm x Depth 43.1 cm
b - brochure - Size: Length 15.7 cm x Width 8.4 cm x Depth 0.1 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Bowen & Company, Inc.
Site Made (City)
Bethesda
Site Made (State)
Maryland
Site Made (Country)
United States of America
Dates
1957
Date Remarks
Based on donors remarks
Material
metal: silver, brown
enamel: beige
fibreboard: brown
paint: black
fabric: yellow
rubber: grey
plastic: black
paper: white
ink: orange, black
Inscriptions
(a) Printed on unit: "KERN // TURBO-JET DENTAL UNIT // PATENT APPLIED FOR // MANUFACTURED BY // BOWEN & COMPANY, INC. // BETHESDA, MARYLAND"; printed inside unit door: "TURBO-JET // DENTAL UNIT // PATENT APPLIED FOR // MODEL No. 153 // VOLTS 115 // CYCLES 60 // AMP. 7.0 // MANUFACTURED BY // BOWEN & COMPANY, INC. // BETHESDA, MARYLAND"; painted inside unit: "CAUTION // DISCONNECT MACHINE // FROM SOURCE OF SUPPLY // BEFORE REMOVING THIS // COVER"; (b) printed on cover: "TURBO- // JET // Patent Applied For // HYDRAULIC // TURBINE // HANDPIECE // Manufactured by // BOWEN & // COMPANY, INC. // P.O. BOX 5818 // BETHESDA 14, MD."; stamped on cover: "PATERSON & PATERSON INC."
Permanent Location
(a) Storage Room W2
W2-536-1-1
(b) Storage Room 2005
2005-2-5 Box 20
Condition Remarks
Rubber sticky but malleable; plastic and metal border around top of cabinet loose at back; electric wire frayed; parts of dental drill handle corroded
Copy Type
Original
Reference Types
Book
Person
JPG
Reference Comments
“The development of the dental high-speed air turbine handpiece”, J.E. Dyson and B.W. Darvell, 1993, p. 58; Dr. George Allison
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 by Dr. George Allison from Hanover, Ontario, who purchased it in 1957; the unit is a simple pump and turbine and used water to operate; it operates via a foot control but has only one speed - 50 000 rpm; G.R. Kern was a mechanic from Arlington, VA who filed the original patent, but by 1956 Bowen was manufacturing the units under the 'Kern Turbo-Jet' name; these units were made obsolete after the introduction of air turbine-powered drills, specifically the Airotor unit
Images
Less detail

Welsh electrode

https://mhc.andornot.com/en/permalink/artifact3216
Dates
1932
circa 1932
Collection
Dr. Charles H. Bird / Dr. Godfrey Bird Collection
Category
Diagnostic & Treatment Artifacts
Classification
Cardiology
Accession Number
997037110 a-b
Description
An electrode (a) that is a round, rubber bulb with a pronounced ridge traversing the centre; the bottom of the bulb tapers to a short stem that fits snugly over a steel stem that protrudes from a semi-circular concave steel shell; at the joint a short valv-like electrical connector extends from the…
  1 image  
Accession Number
997037110 a-b
Collection
Dr. Charles H. Bird / Dr. Godfrey Bird Collection
Category
Diagnostic & Treatment Artifacts
Classification
Cardiology
MeSH Heading
Electrodes
Electrocardiography, instrumentation
Cardiology -- instrumentation
Description
An electrode (a) that is a round, rubber bulb with a pronounced ridge traversing the centre; the bottom of the bulb tapers to a short stem that fits snugly over a steel stem that protrudes from a semi-circular concave steel shell; at the joint a short valv-like electrical connector extends from the stem; the connector has a screw-thread clamp that secures the connector in a drilled-out hole; the box (b) is a small, rectangular cardboard box with flaps on both ends and a glue seam on the bottom corner
Number Of Parts
2
Part Names
a - electrode - Size: Length 6.9 cm x Width 4.1 cm x Depth 3.5 cm
b - box - Size: Length 8.0 cm x Width 4.5 cm x Depth 4.5 cm
Provenance
Used either by Dr. C.H. Bird or by Dr. Godfrey Bird, of Gananoque, Ont.
Maker
Bowen and Company, Inc.
Site Made (City)
Bethesda
Site Made (State)
Maryland
Site Made (Country)
United States of America
Dates
1932
circa 1932
Date Remarks
Item identified in "Antique Medical Instruments" as 1932
Material
metal: silver-grey
rubber: red
cardboard: off-white
Inscriptions
Printed on front of box: "ONE // WELSH SELF-RETAINING // ELECTROCARDIOGRAPHIC ELECTRODE // Cat. No. EK-351 // THE BURDICK CORPORATION // MILTON, WISCONSIN"; printed on box flap: "Manufactured By // Bowen & Co., Inc. // Bethesda, Md. // Patent No. 2,580,628"; printed on back: "CAUTION // [list of cautions]"; printed on box flap: "ONE // WELSH SELF-RETAINING // ELECTROCARDIOGRAPHIC // ELECTRODE // CAT. NO. EK-351"
Permanent Location
Storage Room 0010
0010-E6-8
Condition Remarks
Box shows only minor marks and scuffing; the rubber bulb of the electrode has hardened and cracked along seams and sleeve
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
"Antique Medical Instruments," by Keith Wilbur, M.D., Westchester, 1987, p. 40 (see attached photocopy); CD #8
Research Facts
This is a modification of Burger's 1932 suction precordial electrode
Images
Less detail