A Bissell or Bissel truck (also Bissel bogie or pony truck) is a single-axle bogie which pivots towards the centre of a steam locomotive to enable it to negotiate curves more easily. Invented in 1857 by Levi Bissell[1] and usually then known as a pony truck, it is a very simple and common means of designing a carrying wheel.
- ^ Jackson, Alan A. (2006). The Railway Dictionary (4 ed.). Stroud: Sutton Publishing. p. 28. ISBN 0-7509-4218-5..