trammel-wheel
Tram"mel wheel`. (Mach.) Defn: 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.
Tram"mel wheel`. (Mach.) Defn: 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.