Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 506
ich works in a groove G on the upper side of the breech-block. The studof the extractor for a time runs in the straight portion of the groove; but as soon as the wedgeis so far withdrawn that the loading-hole H coincides with the chamber, the stud runs in the in-clined part of the groove, and the… … 486 ORDNANCE, CONSTRUCTION OF. calibre, and intended for light charges, comparatively large projectiles, and moderate angles of ele-vation. Shells are most commonly used as projectiles, and the bore is chambered for the receptionof the charge. United States naval howitzers are of bronze, and of the…
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