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A simple dumbwaiter is a movable frame in a shaft, dropped by a rope on a pulley, guided by rails; most dumbwaiters have a shaft, cart, and capacity smaller than those of passenger elevators, usually 45 to 450 kg (100 to 992 lbs.) [2] Before electric motors were added in the 1920s, dumbwaiters were controlled manually by ropes on pulleys.
In 1996, Doppelmayr's European holding company purchased the ropeway department of Von Roll, a Swiss manufacturer which had been making lifts in North America since the mid-1980s. Von Roll owned Hall Ski-Lift, an American company that produced more than 400 lifts from 1960 to 1985. Doppelmayr now controlled all the spare parts sales for ...
A simple crane. A counterweight is a weight that, by applying an opposite force, provides balance and stability of a mechanical system. [1] The purpose of a counterweight is to make lifting the load faster and more efficient, which saves energy and causes less wear and tear on the lifting machine.
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A forklift (also called industrial truck, lift truck, jitney, hi-lo, fork truck, fork hoist, and forklift truck) is a powered industrial truck used to lift and move materials over short distances. The forklift was developed in the early 20th century by various companies, including Clark , which made transmissions , and Yale & Towne ...
A tool library is an example of a library of things. Tool libraries allow patrons to check out or borrow tools, equipment and "how-to" instructional materials, functioning either as a rental shop, with a charge for borrowing the tools, or more commonly free of charge as a form of community sharing. [1] A tool library performs the following main ...
West Monroe is the second largest city in Ouachita Parish, Louisiana, United States. It is situated on the Ouachita River , across from the neighboring city of Monroe . The two cities are often referred to as the Twin Cities of northeast Louisiana.
In 2012 The TUTA Theater company presented The Dumb Waiter. [10] Toronto. In April 2021, the Crane Creations Theatre Company led a play reading of The Dumb Waiter in its monthly play reading event. Hosted by a group of professional theatre artists, the Play Date event aims to spread awareness of playwrights and playwrighting from around the globe.