Barlow's patent 'motormeter' - lever & tappet attachment, 19th century.

Barlow's patent 'motormeter' - lever & tappet attachment, 19th century.
3 2 c m
40cm
actual image size: 32cm x 24cm

Description

'The motormeter, a machine to indicate the number of revolutions made per minute or other protion of time by a steam engine or revolving shaft or other body having intermittent motion, so that by simple inspection of a dial the rate of speed may be seen.'

Image Details

Image Ref.
 
10418341

© Science Museum / Science & Society Picture Library

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