General Information

Serial #

15327

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL (PROBABLY BRASS & NICKEL SILVER); RECORDING UNIT WHEEL, MEASURING WHEEL & VERNIER SCALES OF SYNTHETIC MATERIAL. WOODEN CASE HAS SOME FELT PADS FITTED TO SUPPORTS; BRASS HINGES

Dimensions

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

Length

34.0 cm

Width

12.0 cm

Height

12.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mathematics

Category

Drawing & measuring instruments

Sub-Category

N/A

Manufacturer

AKA

Stanley

Country

England

State/Province

Unknown

City

London

Context

Country

Canada

State/Province

Ontario

Period

THIS TYPE OF INSTRUMENT USED C.1940S+

Canada

Unknown

Function

TO MEASURE AREAS WHICH HAVE BEEN DRAWN TO SCALE.

Technical

EXAMPLE OF PRECISION ROLLING DISC PLANIMETER. MEASURING WHEEL IS PROVIDED WITH A VERNIER READING TO 1/1,000 OF A REVOLUTION, AND A UNIT WHEEL WHICH RECORDS UP TO 100 REVOLUTIONS. ADJUSTABLE TRACER ARM SET BY VERNIER TO VARY AREA PER REVOLUTION OF MEASURING WHEEL FROM 20 SQ. CM TO 5 SQ. CM [REF.1] HIGHLY ACCURATE FORM OF PLANIMETER.

Area Notes

Unknown

Details

Markings

'STANLEY LONDON/ ROLLING DISC PLANIMETER/ 15327/ MADE IN ENGLAND' INCISED IN WHITE ON .1. UNIT WHEEL DIVIDED 0-100; MEASURING WHEEL & VERNIER DIVIDED 0-10

Missing

CHECKING RULE

Finish

MOST AREAS HAVE SMOOTH, DULL BLACK FINISH; BRIGHT SILVER METAL OR PLATED FITTINGS, ADJUSTMENTS, ROLLING WHEELS & TRACER ARM.

Decoration

N/A