General Information

Serial #

N/A

Part Number

1

Total Parts

4

AKA

N/A

Patents

N/A

General Description

.1 METAL; GLASS MIRRORS, LAMP BULBS; PAPER SHADES & WOOD ROLLERS; SYNTHETIC PARTS/.2 METAL WITH MIRROR GLASS/.3 METAL/.3 SYNTHETIC GOGGLES WITH SYNTHETIC STRAP, METAL PARTS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

172.0 cm

Width

50.0 cm

Height

162.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Medical Technology

Category

Radiology

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

United States of America

State/Province

Illinois

City

Chicago

Context

Country

Canada

State/Province

Quebec

Period

USED FROM LATE 1940S TO 1980S

Canada

SECOND GENERATION OF X-RAY STEREOSCOPE USED AT MONTREAL NEUROLOGICAL HOSPITAL, USED BY DR. ETIENNE, CHIEF OF SURGERY AT MNH, AS DIAGNOSTIC DEVICE & TO TRAIN MEDICALSTUDENTS. TWO SETS OF MIRRORS ENABLED DOCTOR TO DESCRIBE TO STUDENTS EXACTLY WHERE IN PATENT'S BODY TO LOOK & WHAT TO LOOK FOR TO IDENTIFY MEDICAL PROBLEMS.

Function

MEDICAL DIAGNOSTIC APPARATUS WHICH TOOK TWO X-RAYS AT RIGHT ANGLES TO DETERMINE PRECISELY WHERE LESION, TUMOUR ETC. WAS IN PATIENT.

Technical

BEFORE CAT SCANS, SURGEONS HAD DIFFICULTLY DETERMINING POSITION OF LESIONS & TUMOURS FROM SINGLE X-RAY IMAGE. X-RAY STEREOSCOPE TOOK TWO X-RAYS TAKEN AT RIGHT ANGLES TO DETERMINE MORE PRECISELY WHERE THE PROBLEM WAS LOCATED PHYSICALLY WITHIN THE PATIENT, ESPECIALLY IMPORTANT FOR CRANIAL & BRAIN SURGERY. CONCEPT OF STEREO IMAGING USING MIRRORS WAS DEVELOPED BY CHARLES WHEATSTONE (REF. 2).

Area Notes

Unknown

Details

Markings

.1 PLATE ON BACK OF APPARATUS READS "GENERAL ELECTRIC/ X-RAY CORPORATION/ CHICAGO/ MADE IN U.S.A./ 100V"; PLATE ON TOP OF MIRROR UNIT READS "GENERAL ELECTRIC/ X-RAY CORPORATION/ CHICAGO/ MADE IN U.S.A./ MFD. UNDER U.S.PATENT/ 1,649,878"; BLUE & WHITE LABEL READING "MTL NEUROLOGICAL/ INSTITUTE HOSPITAL/ No 13733"; BLACK SCALE WITH SILVER MARKINGS/.2 INSTRUCTION LABEL READS IN PART "GENERAL ELECTRIC/ MADE IN MILWAUKEE, WISCONSIN U.S.A."/.1 PT - PAPER LABEL ON SHADE ROLLER READS IN PART "HARTSHORN SELF-ACTING/ SHADE ROLLER/ TRADE MARK REGISTERED U.S. PATENT OFFICE" WITH INSTRUCTIONS FOR USE & PATENT INFO.

Missing

UNKNOWN A lot of tiny glass fragments are missing from the two broken panels.

Finish

.1 GREY PAINTED STAND & PARTS; PLATED PARTS; MIRROR GLASS; GREY PAINTED LIGHT SHADES WITH WHITE PAINTED INTERIORS; GREY POWER CORDS, BLACK PLUGS; MULTICOLOURED SYNTHETIC WIRING; BLACK PAPER SHADES ON UNFINISHED WOOD ROLLERS/.2 GREY PAINTED/.3 PAINTED BLACK/.4 RED GOGGLES, BLACK STRAP PARTS, BLACK PAINTED METAL

Decoration

.4 RAISED LETTERING ON GOGGLES READS "WILLSON/ MONO/ GOGGLE [SCRIPT]/ MADE IN U.S.A." WITH PATENT NOS.; WHITE LETTERING READING "DISTRIBUTED BY GENERAL [LOGO] ELECTRIC"