Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 54
es treated by this process were subjected to trials at■ Annapolis, twentv-one shots from a Hotchkiss 6-pounder being fired at a 3-in. plate of nickelsteel. On\v three penetrated more than half an inch, and all projectiles were smashed. Bv far the most momentous question which the Navy Department in… … Fig. 4.—Annapolis tests of aniior-iilate. 40 ARMOR. should be adojited. having reference both to its composition and mode of treatment. Theseries of tests alrea<ly referred to resulted in the decision to adopt nickel steel. It remained,liowever, to give a thorough trial to the first armor of…
Mechanical engineering
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