2,126,816 Patented Aug. 16, 1938 UNITED PATENT STATES OFFICE 2,126,816 SLIDE-ACTION FIREARM William C. Roemer, New Haven, Conn., assignor to Winchester Repeating Arms Company, New Haven, Conn., a corporation of Maryland Application January 12, 9 Claims. This invention relates to an improvement in firearms of the class which are manually operated by means of a reciprocating slide, and which are for that reason commonly referred to as “slide5 action” firearms. One of the main objects of the present invention is to provide a superior firearm of the type referred to with simple, reliable and effective means for holding the manually-operable slidehandle or equivalent member against displacement during the interval between the closing of the bolt and the firing of the gun, to thus prevent the unintentional partial retirement of the bolt during such interval and the consequent failure of the gun to properly fire when the trigger is pulled. Another object of the present invention is to provide a superior firearm of the type referred to in which reliable and effective automatic means is provided for preventing a premature release of the bolt after the same has been moved into and locked in its breech-closing position to thus guard against accidents due to hang-fires. A further object of the present invention is to provide simplified and direct acting means whereby the hammer of the gun is automatically prevented from firing the same until such time as the bolt has been fully closed. With the above and other objects in view, as will appear to those skilled in the art from the present disclosure, this invention includes all features in the said disclosure which are novel over the prior art and which are not claimed by me in a separate application. In the accompanying drawings, in which certain modes of carrying out the present invention are shown for illustrative purposes: Fig. 1 is a broken view mainly in side elevation of a Slide-action firearm constructed in accordance with my invention, the slide-handle and immediately associated parts being shown in vertical longitudinal section; Fig. 2 is a broken view in side elevation of the . receiver portion thereof, with the receiver coverplate removed, and the butt-stock, barrel and magazine broken away, the parts being shown in the positions which they assume when the bolt is moved into its fully open or retracted position; Fig. 3 is a corresponding view but showing the parts in the positions which they assume when the bolt is about midway in its forward travel toward its closed position; Fig. 4 is a similar view but showing the parts in the positions which they assume after the bolt 1937, Serial No. 120,218 (Cl. 42—17) has been moved from the position in which it is shown in Fig. 3 into its fully closed position; Fig. 5 is a similar view showing the parts in the positions which they assume at the instant the hammer strikes the firing-pin; Fig. 6 is a similar view showing the parts in the positions which they assume after the gun has been fired and after the recoil has taken place; Fig. 7 is a similar view showing the bolt in its closed position and the hammer in its fully cocked position, and the slide-locking member manually tilted by means of the release-plunger to permit the retraction of the bolt without having previously released the hammer from its cocked position; Fig. 8 is a vertical transverse sectional view taken on the line 8—8 of Fig. 2; Fig. 9 is a similar view taken on the line 9—9 of Fig. 2; Fig. 10 is a vertical transverse sectional view taken on the line 10—10 of Fig. 4; Fig. 11 is a vertical transverse sectional view taken on the line {{—I1 of Fig. 7; Fig. 12 is a broken detail sectional view taken on the line 12—12 of Fig. 2; Fig. 13 is a perspective view of the hammer detached; Fig. 14 is a similar view of the slide-locking member detached; Fig. 15 is a broken perspective view of the rear end of the operating slide bar; Fig. 16 is a perspective view of the oscillating plunger-guide detached together with its operating-spring; and Fig. 17 is a similar view of the manually-operable release-plunger detached. The particular slide-action firearm herein chosen for the illustration of the invention includes, as shown, a receiver 20 which may be briefly described as being open as at 2! in its right side face and being provided with an internal mechanism-receiving chamber 22 in which is mounted the major portion of the moving parts of the gun mechanism in the usual manner of firearms. The opening 2! in the right side face of the receiver 29 is closed by a receiver coverplate 23 (Figs. 1, 8, 9 and 10) and as shown, the upper forward corner of the said cover-plate 23 is cut away as at 24 to provide a lateral ejectionopening leading outward from the chamber 22 in the said receiver 20. Secured in any approved manner to the rear end of the receiver 20 is a butt-stock 25, while projecting from the forward end thereof is the 15 °: 5: