tail-beam

noun

tail-beam

noun

1

Synonym of tail-pole.

Old post-mills were turned or 'luffed' into the wind by a pole variously called the tail-pole, tail-beam, turning-beam, or tiller-beam.2011, Stanley Freese, Windmills and Millwrighting, Cambridge University Press, page 40:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.