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Entry 1 sense Webster, 1913

Trammel wheel

· Tram·mel wheel · IPA
01 A circular plate or a cross, with two or more cross grooves intersecting at the center, used on the end of a shaft to transmit motion to an…
  1. 1.
    A circular plate or a cross, with two or more cross grooves intersecting at the center, used on the end of a shaft to transmit motion to another shaft not in line with the first.(Mach.)