lewisson
吊楔; 起重爪
Lew·is Lew·is·son n.
1. An iron dovetailed tenon, made in sections, which can be fitted into a dovetail mortise; -- used in hoisting large stones, etc.
2. A kind of shears used in cropping woolen cloth.
Lewis hole, a hole wider at the bottom than at the mouth, into which a lewis is fitted.
◄ ►