coupling rod
noun1
Rail transport, Railways, 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.
- 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.1960 March 23, “Notes and News: Two Scenes from Norfolk”, in Railway Magazine, page 214:
- Synonyms
- side rod, siderod
- Related terms
- connecting rod