General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

MAHOGANY CASE WITH BRASS HARDWARE, CORNER BRACES, & HANDLES/ BRASS CHASSIS/ BRASS & STEEL MECHANISM/ WOOD HANDLES/ SYNTHETIC LEVER HANDLE GRIPS

Dimensions

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

Length

62.5 cm

Width

21.0 cm

Height

17.9 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mathematics

Category

Calculating devices

Sub-Category

N/A

Manufacturer

AKA

TATE

Country

England

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

AN ENGLISH MADE CALCULATOR USED BY THE METEOROLOGICAL SERVICE OF CANADA.

Function

A MECHANICAL CALCULATOR CAPABLE OF PERFORMING ADDITION, SUBTRACTION, MULTIPLICATION, & DIVISION, POSSIBLY USED FOR THE REDUCTION OF METEOROLOGICAL OBSERVATIONS FROM THE ORIGINAL READINGS TO USABLE DATA.

Technical

TATE'S ARITHOMETER WAS A COMMERCIALLYMADE CALCULATOR SIMILAR TO THOMAS DE COLMAR'S ARITHOMETRE, WHICH WAS DEVELOPED IN FRANCE IN THE 1820'S. THE LATTER WAS BASED UPON THE STEPPED DRUM MECHANISM INVENTED BY LEIBNITZ OF GERMANY IN THE 1670'S. ARITHOMETERS REMAINED IN PRODUCTION UNTIL ABOUT 1914 (REF. 1).

Area Notes

Unknown

Details

Markings

Incised lettering on chassis reads 'TATE'S/ PATENT/ ARITHMOMETER/ AGENTS/ NEGRETTI & ZAMBRA/ LONDON'.

Missing

N/A

Finish

VARNISHED BROWN WOOD CASE/ BRASS COLOURED PARTS/ BLACK GRIPS.

Decoration

N/A