Clocks: James Cox's "perpetual motion" self-winding clock. Engraving by J. Lodge, 1774.

Date:
1774
Reference:
40950i
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Credit

Clocks: James Cox's "perpetual motion" self-winding clock. Engraving by J. Lodge, 1774. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.

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About this work

Description

Cox's self-winding clock was re-wound by the movement of a mercury column barometer. Variations in atmospheric pressure caused the motion of a winding weight. Cox disposed of his device by means of a lottery in 1773-5

Publication/Creation

[London]

Physical description

1 print : engraving ; image and border 18.9 x 11.5 cm

Contributors

Lettering

Mr. Cox's perpetual motion, a prize in the museum lottery. ; J. Lodge sculp.

References note

F. J. Britten, Old clocks and watches and their makers, London, 1911, fig.500, p.381

Reference

Wellcome Collection 40950i

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