General Information

Serial #

47287

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

ALL METAL CONSTRUCTION; ROTATING & COUNTING DISCS AND MEASURING ROLLER ARE OF CELLULOID. WOODEN CASE COVERED IN LEATHERETTE, AND LINED WITH FINE BRUSHED COTTON CORDUROY; 2 PAPERLABELS FASTENED ON INSIDE OF LID.

Dimensions

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

Length

36.2 cm

Width

32.5 cm

Height

17.3 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

OTT

Country

Federal Republic of Germany

State/Province

Unknown

City

Kempten

Context

Country

Canada

State/Province

Ontario

Period

PRESUMABLY THIS PLANIMETER WAS USED C. 1950S +.

Canada

Unknown

Function

USED FOR ACCURATELY MEASURING AREAS ON MAPS, PLANS & DRAWINGS.

Technical

HIGHLY ACCURATE DRAWING & MEASURING INSTRUMENT, CAPIABLE OF ACHIEVING RESULTS OF THE HIGHEST ACCURACY IN CONNECTION WITH GREATLY REDUCED SCALES OF REPRODUCTION.

Area Notes

Unknown

Details

Markings

.1 " OTT - PLANIMETER/ MADE IN GERMANY/ 47287/ [ K&E logo]/ KEUFFEL & ESSER Co/ 4262 ". Tracing bar divided 10 to 50+, in increments of 1/100; also incised " MADE IN GERMANY ". Counting disc divided 0-99, in increments of 1. Measuring roller divided 0-9.9, in increments of 1/10; ernier divided 1-10, in increments of 1./.2 tracing bar extension divided [4-] 60 to 100, in increments of 1/100; also incised " 12 " on reverse. "47287" incised on PT bar. Two paper labels fixed to inside of case lid: please see transcription in Supp. Info. file. Red decal on case bottom reads "Made in Germany".

Missing

NONE.

Finish

MOTTLED, SILVER GREY FINISH ON MOST AREAS OF PLANIMETER. ROLLERS & CONNECTING AIXLE, SET SCREWS, TRACER ARMS (INCLUDING.2) AND SELECTED COMPONENTS HAVE SMOOTH SILVER METAL FINISH. LARGE ROTATING DISC IS BEIGE WITH LIGHT BROWN SPECKLED FINISH. GRADUATED DISCS ARE WHITE. BLACK LEATHERETTE COVERING ON CASE HAS FINELY PEBBLED TEXTURE; LINING IS BRIGHT GREEN, AND BRUSHED TO RESEMBLE VELVET.

Decoration

N/A