General Information

Serial #

1003500

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD BASE & COVER/ SYNTHETIC (BAKELITE?) CASING, KNOBS, PARTS/ GLASS INDICATOR IN METAL FRAME/ METAL PARTS

Dimensions

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

Length

46.5 cm

Width

27.6 cm

Height

22.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Electricity

Sub-Category

N/A

Manufacturer

AKA

Leeds Northrup

Country

United States of America

State/Province

Pennsylvania

City

Philadelphia

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

EXAMPLE OF EQUIPMENT USED AT LARGEST RESEARCH INSTITUTION IN CANADA DURING PERIOD OF ITS MOST RAPID GROWTH, GREATEST PRODUCTIVITY & DURING WHICH IT DEVELOPED WORLD RENOWNED REPUTATION. THIS BRIDGE WAS USED IN ATOMIC BEAM LABORATORY.

Function

INSTRUMENT USED TO MEASURE ELECTRICAL RESISTANCE TO HIGH DEGREE OF ACCURACY. IT CONSISTS OF FOUR-ARM BALANCING CIRCUIT DEVICE THAT MEASURES UNKNOWN RESISTANCE IN TERMS OF STANDARD RESISTANCE, USING NULL INDICATOR CONSISTING OF TWO PARALLEL RESISTANCE BRANCHES, WITH EACH BRANCH CONTAINING TWO RESISTANCES IN SERIES.

Technical

Unknown

Area Notes

Unknown

Details

Markings

INCISED WHITE LETTERING ON CASING TOP READS "LEEDS & NORTHRUP CO./ PHILADELPHIA/ 1003500/ MADE IN U.S.A." WITH INCISED WHITE SCALE MARKINGS & LETTERING FOR CONTROL FUNCTIONS/ LABEL READING "NATIONAL RESEARCH/ ATOMIC/ BEAM LAB/ LABORATORIES"

Missing

APPEARS COMPLETE

Finish

CLEAR COATING ON BROWN WOOD/ BLACK SYNTHETIC/ COLOURLESS, TRANSPARNT GLASS WITH METALLIC FRAME

Decoration

INCISED WHITE MFR.'S LOGO CONSISTING OF "L & N" IN SQUARE