"A Block is a pulley or a system of pulleys rotating on a pintle mounted in its frame or shell with…
"Combinations of pulleys are made in great variety. In the forms most commonly used, one continuous…
"Riding-boom. A boat-boom or long spar working in a hinge or goose-neck, designed to be lowered…
An elevator or lift is a vertical transport vehicle that efficiently moves people or goods between floors…
A crane is a lifting machine, generally equipped with a winder, wire ropes or chains and sheaves, that…
A diagram illustrating an elevator or a lift used by Landis Company. The counter weights are adjusted…
"In the differential pulley, an endless chain is reeved upon a solid wheel that has two grooved rims…
The first reference to an elevator is in the works of the Roman architect Vitruvius, who reported that…
"A pulley is a grooved wheel, around which a rope is passed, and is either fixed or moveable." —…
"The pulley is a lever with equal arms of the first or second class, but, when it moves. the attachments…
"The lift pump or suction-pump consists of a cylinder or barrel, piston, two valves, and a suction pipe,…
"1. In rope-drilling, a cylinder, provided with a valve at the bottom, which is lowered into the drill-hole…
This drawing depicts the use of a sail where perpendicularly placed so that opposing wind provides the…
"In printing, an iron hammer with a split curved claw at the end which serves for a handle. The claw…
"In railroad construction and canal- or road-work, a large scooping bucket armed with teeth and used…
"Devices for lifting water are older than written history, and various forms of pumps are used on almost…