Stanhope's calculating machine, 1777.

Stanhope's calculating machine, 1777.
3 4 c m
40cm
actual image size: 32cm x 26cm

Description

Calculating machine, made by James Bullock, in a metal case, invented by Charles Stanhope, 3rd Earl (1753-1816), in 1777. Stanhope was an English politician and scientist who is known for his inventions in printing, including an iron pres and stereotyping, a proces for moulding and reproducing forms. The calculator was the first to tackle the tens carry mechanism.

Image Details

Image Ref.
 
10327414

© Science Museum / Science & Society Picture Library

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