Thomas De Colmar's Arithmometer, c 1870., with detachable lid

Made:
1880-1900 in Paris
Thomas De Colmar arithmometer with detachable lid, no Arithmometer by Thomas de Colmar, no.2034. Arithmometer by Thomas de Colmar, no.2034.

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Thomas De Colmar arithmometer with detachable lid, no
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Arithmometer by Thomas de Colmar, no.2034.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Arithmometer by Thomas de Colmar, no.2034.
Science Museum, London|UCL

Arithmometer calculating machine with detachable lid by Thomas de Colmar, no.2034

Thomas De Colmar arithmoneter with detachable lid, no. 2034, 1880-1900. Charles X Thomas de Colmar invented his 'arithmometer' in 1820, which became the first commercially successful calculating machine in the 1860s. It could be used for addition, subtraction, division and mulitiplication. The mechanism was based on the stepped reckoner invented by Liebniz (1646-1716). Machines of this type were made well into the 20th century.

Details

Category:
Mathematics
Object Number:
1967-69
type:
calculating machine (stepped drum)
credit:
University College, London

Parts

Calculating machine (arithmometer), Paris, France, 1880-1900

Calculating machine (arithmometer), Paris, France, 1880-1900

Arithmometer by Thomas de Colmar, no.2034

Object Number:
1967-69 Pt1
type:
arithmometer
Lid for arithmometer calculating machine by Thomas de Colmar

Lid for arithmometer calculating machine by Thomas de Colmar

Lid for arithmometer calculating machine by Thomas de Colmar, no.2034

Object Number:
1967-69 Pt2
type:
instrument case (calculating machine)