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 252
s.For punching fish-plates, angle-irons, or other work notof very heavy character, multiple punching machines aremanufactured, some of which make as many as six Iiolesat once. Punching is mnch chea])er than drilling, since itcan be accomplished more quickly, but as it tends toweaken the material in… … MACHINE TOOLS. 245 Fig. 57.
Inventions · Mechanical engineering · Machinery
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![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-157-48.webp)
