General Information

Serial #

N/A

Part Number

1

Total Parts

14

AKA

N/A

Patents

N/A

General Description

GEARS:SYNTHETIC/ CASE: WOOD COVERED WITH PAPER; VELVET LINING; METAL HARDWARE WITH LEATHER STRAPS

Dimensions

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

Length

26.8 cm

Width

15.8 cm

Height

2.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Photogrammetry

Sub-Category

N/A

Manufacturer

AKA

Bausch Lomb

Country

United States of America

State/Province

New York

City

Rochester

Context

Country

North America

State/Province

Unknown

Period

Unknown

Canada

Unknown

Function

GEAR COMBINATIONS ARE USED IN A UNIVERSAL TRACING TABLE TO MECHANICALLY CONVERT THE COUNTER READINGS INTO UNITS OF THE PARTICULAR MEASURING SYSTEM BEING USED WITH DUE REFERENCE TO THE INCIDENTAL MAPPING SCALE, I.E., IT PROVIDES FOR A VARIETY OF DIRECT-READING MAPPING SCALES.

Technical

THE SELECTION OF GEARS IN THE SET PROVIDES A FAIRLY UNIFORM DISTRIBUTION OF DIRECT READING SCALES OVER THE ENTIRE RANGE OF MAPPING SCALES.

Area Notes

Unknown

Details

Markings

GEARS:.1 'M60';.2 'M48';.3 'M84'; M4 'M56';.8 'M40';.9 'M60';.10 'M48';.11 'M66';.12 'M112';.13 'M100';.14 'M96'/ CASE: STAMPED ON LID TOP: 'B/ &L'/ PAGE AFFIXED TO INSIDE LID READS IN PART: 'METER READING GEAR CHART/ 53-14-75/ PLOTTING SCALE/ GEAR NUMBER/ SHAFT A/ SHAFT B/ SHAFT C/ SHAFT D/ One Revolution of Elevation Counter = 10 meters for scales 16 to 31...'/ HANDWRITTEN ON LABEL: 'TRACING TABLE NO 2053VA'

Missing

TWO '54' GEARS

Finish

BLACK SIMULATED LEATHER CASE WITH BLUE VELVET LINING/ BLACK GEARS WITH WHITE PRINTING

Decoration

N/A