pony truck

plural pony trucks

1. rail transportSynonym of Bissell truck.

   The outermost non-driven axle forms a pony truck within the bogie frame, with its bearings in a cannon box.

   1959 June, “The first "Peak" class 2,300 h.p. diesel-electric locomotive for B.R.”, in Trains Illustrated, page 296

   1 more example

   A bogie has been provided at the front end of the engines in place of the original pony truck; it is identical with that fitted to the class "B1" 4-6-0 locomotives.

   1944 September and October, “New Pacific Locomotives for the L.N.E.R.”, in Railway Magazine, page 286

   Synonyms: Bissell truck