The Collaborative International Dictionary
Trispaston
Trispast \Tri"spast\, Trispaston \Tri*spas"ton\, n. [NL.
trispaston, fr. Gr. ? drawn threefold; ? (see Tri-) + ? to
draw.] (Mech.)
A machine with three pulleys which act together for raising
great weights.
--Brande & C.