Cross section of the tube, &c., 1845. Diagram showing the workings of an atmospheric railway, a system using air pressure for locomotion, invented by Clegg and Samuda. 'To the leading carriage of every train a piston is attached by a bent plate; on the piston-rod are four wheels, two before and two behind the bent plate, so that when the piston is in the pipe, these wheels raise the valve, and prevent it from touching the bent plate. In this manner a communication is made between the piston in the pipe and the leading carriage'. From "Illustrated London News", 1845, Vol VII.

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Photo credit: © The Print Collector / Alamy / Afripics
License: Licensed
Model Released: No

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