
3 3 c m
40cm
actual image size: 32cm x 25cm
Description
This open scale barograph in a glazed carrying case was made by Short and Mason. Changes in atmospheric presure cause the series of aneroid capsules to move up and down. This small motion is mechanically enhanced by levers which adjust the position of the lightweight metal arm carrying a pen. The charts normally run for a week. View with case hinged back.
Image Details
Image Ref.
10313143
© Science Museum / Science & Society Picture Library