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 497
usuallyequipped with a pilot valve which controls the main valve.This became necessary early in the development of suchelevators because the operation of the main valve from thecar became a physical impossibility. Accurate and smoothstops were-difficult to obtain particularly at the high speeds.… … General Arrangement of an Hydraulic Elevator regulator. When the pressure drops below normal thevalve is opened and admits steam to the pump. It shutsoflf again when the pressure rises to a predeterminedamount. The discharge from the pump is pumped into thepressure tank, which is partly filled with…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
