Picture No | 11107866 |
Date | 1929 |
Description | Bridges tested for stress for trains 1929 |
Details |
Diagram showing instruments in which bridges were tested in Britain for there ability to stand stress, set up in 1923 by the Ministry of Transport.
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Source | Illustration by S. W Clatworthy in 'The Sphere', 6 April 1929, page 29 |
Credit | © Illustrated London News Ltd/Mary Evans |
Restrictions |
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