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 215
HOISTS 209 chamber thus raising the load. To lower the hoist the upperchamber is connected to the lower chamber through an airvalve, thus equalizing the pressure above and below thepiston and allowing the piston to descend by force of itsown weight. Double-Acting Type The double-acting type of air…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
