coupling rod

English

Noun

coupling rod (plural coupling rods)

  1. (rail transport) A rod that couples the driving wheels of a locomotive, a steam locomotive in particular, so that the driving wheels act together as a unit.
    • 1960 March, “Notes and News: Two Scenes from Norfolk”, in Railway Magazine, page 214:
      The locomotive had been magnificently burnished at Norwich depot, with polished brasswork and red-painted coupling rods—all the more creditable, Dr. Allen adds, as it spent many months last winter in open store.

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