lever brace

A carpenter's hand-brace. lever-engine, s. The same as GRASSHOPPER ENGINE (q. v.). lever-escapement, s. Horol.: A form of escapement in which the lever vibrates on a center and carries the pallets (or anchor), and its forked end alternately engages with and is engaged by a ruby pin attached to a disc on the balance-arbor. The lever or fork, having the impulse given to it from the wheel, and then striking against the ruby pin, gives the motion to the balance from which it was disengaged, till brought back by the hair-spring; the ruby pin then strikes the fork and disengages the wheel, thus allowing it to go on. This causes two distinct beats.