Description and Rules for the Management of the U.S. Magazine Rifle and Carbine: Calibre .30

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U.S. Government Printing Office, 1898 - Rifles - 62 pages
 

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Page 22 - This rotation causes the cocking cam of the bolt to force the firing pin to the rear, drawing the point of the striker into the bolt, rotation of the firing pin being prevented by the lug on the cocking piece projecting, through the slot in the sleeve, into its groove in the receiver. As the sleeve remains longitudinally stationary with reference to the bolt, this rearward motion of the firing pin, and consequently of the striker, will start the compression of the mainspring, since the rear end of...
Page 33 - The best method of applying oil is to rub with a piece of cotton cloth upon which a few drops of oil have been placed, thereby avoiding the use of an unnecessary amount of oil; this method will, even in the absence of the oiler, serve for the cams and bearings, which should be kept continually oiled.
Page 33 - If provided with a cleaning rod, Insert in the chamber a cartridge shell, the front end of which has been filled with a wooden plug, and close the bolt ; clean the bore with rags saturated with soda water, or, If that Is not obtainable, with...
Page 27 - ... When the cut-off is turned up, the magazine is "on;" the bolt can be drawn fully to the rear, permitting the top cartridge to rise high enough to be caught by the bolt in its forward movement. As the bolt is closed this Cartridge is pushed forward into the chamber, being held up during its passage by the pressure of those below. The last one in the magazine is held up by the follower, the rib on which directs it into the chamber.
Page 33 - If gas escapes at the base of the cartridge, it will probably enter the well of the bolt through the striker hole. In this case the bolt mechanism must be dismounted and the parts and well of the bolt thoroughly cleaned. Before assembling the bolt mechanism, the firing pin, the barrel of the sleeve, the body of striker, the well of bolt, and all cams should be lightly oiled. Many of the parts can generally be cleaned with dry rags. All parts after cleaning should be wiped with an oiled rag.
Page 21 - THE ASSEMBLED PARTS AND THEIR OPERATIONS. Most of the operating parts may be included under the Bolt Mechanism and Magazine Mechanism. The 'Bolt Mechanism consists of the bolt, sleeve, sleeve lock, extractor, extractor collar, safety lock, firing pin, firing pin sleeve, striker, and mainspring.
Page 26 - The bolt can not be drawn fully back, and its front end projecting over the rear end of the upper cartridge holds it down in the magazine below the action of the bolt. The magazine mechanism then remains inoperative, and the arm can be used as a single loader, the cartridges in the magazine being held in reserve.
Page 29 - The bolt and magazine mechanism can be dismounted without removing the stock. The latter should never be done, except for making repairs, and then only by some selected and instructed man.
Page 8 - E, which reduces the charring effect of a heated barrel on the stock; hole for butt plate screw, small, and seat for the butt plate tang F ; butt swivel plate seat G; mortise for receiver tang lug and hole for rear guard screw H; mortise for sear and slot for trigger I; cut-off...
Page 23 - ... done by the action of cams. The piece may be cocked either by raising the bolt handle until it strikes the left side of the receiver and then immediately turning it down or by pulling the cocking piece directly to the rear.

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