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; . ng over thepoint of the spring-sear is caught by it and retained against the tensionof the mainspring when the support of the hand is withdrawn. Whenreleased through the trigger in the usual way it is impelled against thefiring-pin, and so discharges the piece. Extraction.—By an extractor swinging on the joint-screw and struckabove
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; . ng over thepoint of the spring-sear is caught by it and retained against the tensionof the mainspring when the support of the hand is withdrawn. Whenreleased through the trigger in the usual way it is impelled against thefiring-pin, and so discharges the piece. Extraction.—By an extractor swinging on the joint-screw and struckabove its center of motion by the forward end of the breech-block nearthe completion of its movement in opening. 1* Ejection.—By accelerating the movement of the extractor by theejector-spring, one end of which has a solid bearing on the hinge-strapslide, and the other resting on the extractor above the center of motion,causes the spring to be compressed by the movement of the latter, untilthe direction of the resistance passes below the center of motion; thesudden release of the spring then throws out the extractor, carryingwith it the shell, which in passing out is deflected by the beveled sar-face of the ejector-stud, and is thus thrown clear of the I^Jf. 27 PARTS PECULIAR AND ESSENTIAL TO THE SYSTEM. One of Wood:1 Stock. Ten principal metallic parts not otherwise mentioned:3 Receiver,9 Locking- Bolt,8 Locking Bolt Guide,J8 Breech Block,!9 Breech Block Section,57 Firing Pin,18 Extractor,SI Hinge Strap Slide,L9 Guard Plate, 15 Trigger. Seven Screws:30 Brch Block Section Scr., 41 Breech Block Joint Scr., 42 Breech Block Joint Screw Nut, 22 Guard Plate Scr., Upper 23 Guard Plate Scr., Lower17 Spring Sear Screw, 40 Tang Screw. Three Pins:13 Main Spring Upper StopWasher Pin, 14 18 Main Spring Lower StopWasher Pin,Trigger Pin. Three Springs:16 Spring Sear, 10 Main Spring,39 Ejector Spring. Three other minor parts:3 Ejector Stud, 11 Main Spring Stop Washer, Upper, 12 Main Spr
Size: 1835px × 1362px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublisherwashingtongovtprin
