Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Dental
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…
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)
(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