Spirit level, 1901-1930.
3 4 c m
40cm
actual image size: 32cm x 26cm

Spirit level, 1901-1930.

Exton, David

© Science Museum / Science & Society Picture Library

Description

Spirit level made by W Ottway & Company of Ealing, London. Basically a telescope that can be set on a tripod, this instrument would be mounted horizontally on a marked spot. When rotated, it would be posible to measure small changes in height, with the aid of an asistant with a measuring rod walking around the plot to be measured. This would be useful in road, rail and canal building, as well as landscape gardening.
 

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Image Ref.

10279893
 

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