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Knight's Mechanical Encyclopedia (ed. Knight), F. (search)
n, withdrawing the needle. The chamber is then unlocked by the knob and slid back, the cartridge inserted and driven into the breech by the chamber, which is locked by a partial rotation. The firing is done by releasing the needlebolt. The Laidley gun (G) has a breech-block pivoted beneath the barrel and rotating backward and downward to open the chamber. When in position for firing, it is fastened by a locking-brace which is operated by a spring, and vibrates on the same axis as the ham47W. C. DodgeFeb. 13, 1866. 53,187Robertson and SimpsonMar. 13, 1866. 53,543J. RiderMar. 27, 1866. *54,068J. GrayApr. 17, 1866. 2. (c.) Hinged beneath Barrel, etc.—Continued. No.Name.Date. 54,100C. E. BillingsApr. 24, 1866. 54,743Laidley and EmeryMay. 15, 1866. 56,399G. P. and G. F. FosterJuly. 17, 1866. 56,890J. BradleyAug. 7, 1866. 58,444R. McChesneyOct. 2, 1866. *58,737C. M. SpencerOct. 9, 1866. *58,738C. M. SpencerOct. 9, 1866. 59,500C. C. ColemanNov. 6, 1866. 60,106
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
them; others built up of pieces, which become separated when the charge explodes, as the Armstrong; others full of bullets, as the shrapnell. Among the more prominent American inventions are, — Sawyer's, 1855 (a). This has a layer of soft metal with flanges outside the inner iron shell, which is forced forward by the shock of firing so as to fill the bore, while the flanges take the grooves. Read, 1856 (b). Has a wrought-iron cup imbedded in a groove at the base of the shell. Major Laidley, 1857 (c). A metallic jacket surrounds the cylindrical part of the shell, and is attached by being imbedded in a groove or by dowels. Sufficient space is left between the two for the entrance of gas. Hubbell, 1860 (d) A circumferential recess in the shell receives a leaden band, which includes a wire coil, and has circumferential grooves to prevent stripping. The whole is covered with canvas. Parrott, 1861 (e). A cup of brass or iron is let into the base of the shell, and swaged