Air cylinder, 1848.
© National Railway Museum / Science & Society Picture Library -- All rights reserved
Air cylinder, 1848. Photograph showing a 10ft length of air cylinder used on the South Devon atmospheric railway. The South Devon railway achieved fame in being the longest line to use atmospheric traction, whereby the atmospheric presure of the air was used to propel the trains in place of locomotives. The atmospheric system was invented by Mesrs Clog & Samuda.