File:Report of the Board of officers appointed in pursuance of the act of Congress approved June 6, 1872, for the purpose of selecting a breech-system for the muskets and carbines of the military service, (14596650129).jpg

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English: Remington Model 1871 locking rifle, caliber .50 disassembled

Identifier: reportofboardof00unit (find matches)
Title: Report of the Board of officers appointed in pursuance of the act of Congress approved June 6, 1872, for the purpose of selecting a breech-system for the muskets and carbines of the military service, together with their report upon the subject of trowel-bayonets;
Year: 1873 (1870s)
Authors: United States. Board on Breech-loading Small-arms United States. Army. Ordnance Dept
Subjects: United States. Army Firearms Bayonets
Publisher: Washington, Govt. Print. Off.
Contributing Library: Library of the Marine Corps
Digitizing Sponsor: Library of the Marine Corps

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from its notch in the hammer, the lever-hook is drawn forward into place by the friction-spring. • Extraction.—By a disk swinging on a hub formed around the pin-holein the side of the breech-block and provided with one projection, againstwhich a corresponding shoulder of the block strikes in opening, andanother projection which engages with the rim of the cartridge. Ejection.—By the acceleration impressed on the extractor by the end ofa flat ejector-spring riding over a cam-shaped projection on its rim. Note.—In opening the breech, the firing-pin in case of accidentallysticking forward, is loosened in its hole and is always drawn back, byengaging with a notched retractor, through the head of which, alsonotched, motion is imparted by a corresponding tooth on the rim of theextractor. The friction-fly being pressed by its spring against the lower surfaceof the breech-block, enables the latter to remain closed against slightdisturbances when the support of the hammer is withdrawn.
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30 July 2014


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