The wonders of modern mechanism. A résumé of recent progress in mechanical, physical, and engineering science (1896)
Cochrane, Charles Henry, 1856- · Philadelphia J.B. Lippincott · leaf 262
head. Power is supplied by adirect-acting plunger-pump, which maintains a constantflow of oil from an overhead tank. The movement ofthe coining-head is controlled by a lever. The pressurea])j>lied is determined by an adjustable safety-valve. Thehead is made to move at the rate of an inch a… … MACHINE TOOLS. 255 The bending of plates of metal is accomplished betweensets of rolls, which may be adjusted so as to give any curveto the plate. Four rolls are commonly used, one pair beinglarger than the other two and being used for compressionand to carry the plate. The smaller rolls do the…
Inventions · Mechanical engineering · Machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
