Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 380
and blistersof varying size occur at the joints. Even under the bestconditions the steel face is liable to strip off the back, andwhere the projectiles penetrate, the holes are larger in theback than in front. This is strikingly illustrated in Fig. 5,which shows the Cammell compound plate at the… … Fig. 5.—Cammcll compound plate at Annapolis trials, 350 Garrison: [J. F. I., trials of 1890, after the firing of the fourth six-inch Holtzerprojectile. The process of making compound armor by the Ellispatent, as carried out at the DilHngen steel works inGermany, has been described as follows :^ A…
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