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 501
car. Another arrangement consisted of planer teeth whichgripped the guides and grooved or planed as the car de-scended. Though this arrangement required a longer timeto stop the car, the stop was still too abrupt. Since mostfreight elevators, either in normal or in emergency service, act as… … Safety Clamps scored drum having a hub provided with right and lefthand screw threads which engage with two screws. A ro-tation of the drum in the proper direction pushes thescrews outward, thus thrusting wedges between a pair ofclamp levers and forcing the jaws against the guides. Thegreat…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
