Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry (1921)
Wright, Roydon Vincent, 1876- ed, Little, John G., joint ed, Augur, Robert C., joint ed · New York, N.Y., Simmons-Boardman Publishing Co · leaf 499
ised by virtue of the power expended; descent of theelevator is entirely by gravity. Freight Elevators Hand-power freight elevators are used when the serviceis such that the power elevator is economically undesirable.It is cheap compared with the power elevator yet superiorto the ordinary hoist. In… … Basement Elevator Hand Power Elevator Carriage Elevator of this brake is to control the speed on the down trip;this must be kept in check since the car gains velocity asit descends due to the acceleration and might crash intothe pit. counterweight guide is usually enclosed to prevent anyonefrom…
Hoisting machinery · Conveying machinery
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