Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 373
k, for the loan of this cut. 342 Garrison [J.F.I., the same as the thickness of the backing, it reaches out toand comes in contact with the armor.* This system made a very material improvement in thestructural streng-th as well as a great addition to its power ofresisting projectiles. From this… … Fig. 3.—Bellerophon target. Up to about 1879, wrought iron in various shapes wasalmost exclusively used for armor. Browne states that thechief value of wrought-iron plates is due to the fact thatthey do not transmit the shock to the bolts and adjacentparts of the structure. The blow is absorbed…
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