Excerpt from Proceedings of the United States Naval Institute, 1887, Vol. 13 There are, undoubtedly, some evidences of the practicability of making successful application of harder steels. Mr. Wm. Metcalf has found that the best steel for steam-hammer piston rods - where the blows are severe and the jar and vibration perhaps greater than in any other case familiar to the civilian engineer - is steel made in the crucible and containing about per cent. Carbon. It is possible that this metal can be used in ordnance; but it ...
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Excerpt from Proceedings of the United States Naval Institute, 1887, Vol. 13 There are, undoubtedly, some evidences of the practicability of making successful application of harder steels. Mr. Wm. Metcalf has found that the best steel for steam-hammer piston rods - where the blows are severe and the jar and vibration perhaps greater than in any other case familiar to the civilian engineer - is steel made in the crucible and containing about per cent. Carbon. It is possible that this metal can be used in ordnance; but it would be wise to settle that question on the small scale first, by using it in steel howitzers, and to defer the making of a large gun until the smaller Sizes had been proved safe. The process of oil-tempering is one which has given remarkable results on a small mass of even high tool-steel but it still remains to be shown that great masses are to be safely treated for ordnance purposes in this way. I think it very possible that it may prove that they may but it is certain that the doubt remains, as yet, too serious to permit the expenditure of large sums on the assumption that we may absolutely rely upon such methods of securing strength, elasticity, homogeneousness, and permanence of good quality. I should certainly not urge the suspension of all efforts in that direction; but I should, by all means, advise caution, in construction, in going ahead of our experimental knowledge. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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