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, (14780952204).jpg

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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Text Appearing Before Image:
h-block into place, and changes the point of bearing of thebrace-lever to one designed to support the breech-block in its new posi-tion, in which it is kept by the action of the brace-lever spring. Byproper manipulation the hammer may be simultaneously cocked. Locked.—By the position of the breech-block and its friction againstthe head of the cartridge when the piece is fired. Fired.—By a back-action side-lock of the usual pattern. Extraction.—By two bent levers pivoted below the mouth of thechamber on each side of it, and struck at the posterior extremity of theirhorizontal arms by the forward end of the breech-block during its de-scent. Ejection.—The continued motion of the breech-block brings its pointsof application on the extractors nearer and nearer to their fulcra, andthereby accelerates the motion of the upper lever-arms in contact withthe cartridge-shell. The butt-stock is counterbored for a stout iron bolt, the front end ofwhich is screwed into the back of the frame.
Text Appearing After Image:
Two of Wood: 2 Tip Stock, 3 Butt Stock. Seventeen principal metallicparts not otherwise men-tioned : 46 PARTS PECULIAR AND ESSENTIAL TO THE SYSTEM. 1016 17Is19202425 41424648 Frame, Joint Strap, Guard Lover, Breech Block, Firing Pin, Brace Lever, Bight Hand Extractor, Lett Hand Extractor, Hammer, Lock Plate, Tumbler, Bridle, Sear, Trigger, Trigger Plate, Side Strap, Main Spring Swivel. Twenty Screws: Butt Stock Holt,Lever Joint Strap Screw,Lever Binge Screw,Brace Lever Roll Screw,Block Joint Screw,Brace Lever Screw,Brace Lever Spring- Scr.,Main Spring Swivel Scr.,Lock Plate Screw,Lock Plate Screw,Main Spring Stop Screw,Tumbler Screw, 26 PARTS NOT PECULIAR TO THL SYSTEM, OR CO Barrel and Front Sight, Ramrod, Butt Plate, lintt Plate Screw, Butt Plate Screw, EJpper Band, I pper Band Screw, I pper Band Swivel, 1 pper Baud Spring,PEABODY, So. 63. Lower Band,Bower Band Spring,Rear Sight Base, Bear Sighl Leal Screw,Bear Sighl Beat, Rear Sight Beat slide.Rear Sighl Spring,Bear Sighl Base Scre

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