Knight. Esquire. Crane, a machine employed to raise or lowerheavy weights, &c. The commonest form ismerely that of a beam laid horizontally on thetop of a perpendicular one, and having apulley at the extremity of the arm- Butas this would not prove sufficient for thevarious purposes to which… … Under this term we may also .includean ingenious invention made by Dr. Spurginfor facilitating the operations of bricklayers,&c., by raising bricks, mortar, &c,, for whichpurpose labourers are commonly employed.m p I is an endless chain turning round threewheels, the necessary motion being…
Design · Decoration and ornament · Art
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