US2006030A - Pneumatic rifle - Google Patents

Description

Patented June 25, 1935 Unirse STATES PNEUMATIC RIFLE Nathan H. Price, Birmingham., Ala., assigner of one-half to Grady Gillespie, Birmingham, Ala.

Application August 14, 1934, Serial No. 739,802

8 Claims.

The invention relates to a pneumatic rie and more especially to a safety breech loading repeater air gun.

The primary object of the invention is the provision or" a rie or gun of this character, wherein shot from a magazine can be successively fed with safety against premature discharge from the discharge barrel at its breech end `for repeating action and the discharge of the shot being pneumatically controlled, the rie or gunin its construction being of novel form.

Another object of the invention is `the provision of a rifle or gun of this character, wherein the pumping of the same may be had with safety against accidental discharge of shot during the pumping period and in which is involved the magazines for the storage of "shot, one being adapted to feed thek shot to a cylinder "which is revolubly supported at the breech end'o the discharge barrel, so that successively the shot can be brought into discharging position at the breech end of said barrel and after each shot, upon discharge, the barrel is leftempty so that the pumping of the gun may be accomplished without liability of accidental discharge of a load therefrom, the pumping action being smooth,`with assurance of maximum compression,`while the trigger is safe due to its design and the location of its pivot pin which is so placed that any forward pressure of the iiring plunger tends to tighten it and said trigger released under an even pressure at all times.

A further object of the invention is the provision of a rifle or gun of this character wherein the action of the firing plunger which strikes the release valve is novel in that it instantly releases the full volume and pressure `of air in the compression chamber directly against the shot to be discharged.

A still further object of the invention is the provision of a rie or gun of this character which is comparatively simple in construction, thoroughly reliable and eilicient in its operation, compact, strong, durable, and inexpensive to manufacture. f

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described in detail, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claims hereunto appended. I

purposesf Arranged within the cylinder II is a In the accompanying drawing:

Figure 1 is a side elevation of a rifle or gun constructed in accordance with the invention.

Figure 2 is an enlarged fragmentary vertical longitudinal sectional View.

Figure 3 is a fragmentary top plan view partly in section.

Figure 4 is a sectional View on the line 4--0 of Figure 2 looking in the direction of the arrows.

Figure 5 is a sectional view on the line 5-5 of lo Figure 2 looking in the direction of the arrows.

Figure 6 is a perspective view of the trigger. Figure 'l is a fragmentary diagrammatic View showing in detail the magazine closure clip.

Similar reference characters indicate correspending parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally a portion of the rifle or gun stock which may be of conventional style and upon 20 which is mounted the gun body, the rear portion oi which constitutes the breech I 0,` while the forward portionforms a pump including a cylinder I I which, at the lowermost external portion, has formed therewith a lug i2, the same iitting 2- a correspondingly shaped depression or recess in the stock A and from without the latter is passed a screw i3 which is threaded into the lug I2, so that these parts, namely, the stock and the body, will be detachably tted with each other. 30

superimposed upon the cylinder l I is the discharge barrel I4, these being aligned, and at opposite sides of this barrel are the tubular magazines I5 and I6, respectively, extended parallel one with the other. rIhe magazinesv I5 and I 6 are of less length than the barrel i4, the latter and the said magazines, at their inner ends, being in confronting relation to a revolving feed cylinder I'i having the rearwardly tapered shot receiving openings i8 arranged uniformly spaced from each other and in a circular trend for successive registration with the inner ends of the barrel M and the magazines I5 and I6,'respec tively. The cylinder I'I is rotatable upon a forwardly directed tubular extension I9 of the 45 breech end I0 which extends into the cylinder I I and at its free end is formed with a knifeedge valve seat 20.

Fitting the outer end of the cylinder II is a packing gland 2i surrounding a plunger 22 havo ing at its outer end the knob-like hand grip. 23 which is outside of said cylinder II, whileatthe inner end of this plunger 22 is a piston 24 which operates within the cylinder II for air pumping block 25 dividing the said cylinder to provide at its inner end a compressed air chamber 26, the block 25 being formed with an internal valve seat 21 about a port or passage 28 establishing communication between the pumping side of the cylinder l! and the compressed air chamber 25. Slidably fitted in the block 25 is a valve 29 normally engaged with said seat 2l, while engageable with the valve seat 25 of the tubular eX- tension i9 is a valve 35, the same being carried by a push pin 3|. This pin Si ts within a central bore constituting an air passage 32 from the chamber 25 to a breech discharge nozzle 33 common to a single hole i5 in the revolving cylinder I'I, yso that compressed air will deliver a shot from this hole into the barrel ifi for the discharge of said shot therefrom.

Surrounding the plunger 22 is a coiled cushioning spring 34 active on the outward stroke of said plunger, thecylinder il having the piston 24therein being provided with the air inlet port or vent 35 opening to the atmosphere.

Interposed between the valves 29 and 35 is a coiled tensioning spring 36 which is seated against retaining lugs El' and 35, respectively, for the holding of said spring aligned with said valves and this spring functions to normally seat the said valves 29 and 35, as should be apparent from Figure 2 of the drawing.

Formed in the rear end of the breech l5 is a hammer chamber 35 having fitted therein a slidable hammer head i5 provided with a cooking stem 4I which extends through a cap l2 fitting the breech lli and closing the outer end of the chamber 39, the same being provided with the knob-like hand grip i3 at its outer end, while surrounding this stem il is a coiled expansion spring 44 to force the hammer head lil inwardly in the chamber 39 for actuating the push pin 3l for the unseating of the valve 30 so that compressed air within the chamber 25 can flow through the nozzle 33 for the discharge of a shot from the cylinder il and the barrel lll, the chamber 26 being supplied with compressed air by actuating the piston Z, as should be obvious.

At the breech end I@ and formed in the stock A is a trigger slot i5 for a trigger 6 having the bell crank-like hanger fork fill pivoted at i8 to a bearing 49 formed on the breech end lli and this trigger 65 locks the hammer head l5 in cocked position within the chamber 39. The trigger 46 is forced to cocking position by a leaf spring i9 active upon said trigger, the hammer head 43 being moved to cooking position manually by pulling outwardly upon its stem lli by hand. The pump plunger 22 is manually operated.

Arranged within the inner end of the magazine I5 is a spring pressed snapping latch or keeper pin 5B which engages with a confronting hole I8 in the cylinder il so as to latch the said cylinder for the aligning of one of its holes i8 with the barrel Ul and another of its holes i8 with the magazine i5 so that shot contained within the latter can be delivered into the cylinder I1 singly and the delivery of a shot from said cylinder under compressed air to the barrel I4 for the discharge of said shot therefrom, the compressed air being fed through the nozzle 33 to the barrel Iii, as hereinbefore set forth.

Located upon the magazines I5 and l5 is an adjustable sight 5i cooperating with the stationary sights 52 and 53, respectively, upon the barrel I4.

Mounted as usual upon the stock A is a trigger guard 5LB.

Removably and swingingly carried at the forward end of the magazine i5 is a closure clip 55 which constitutes a dual closure for both magazines I5 and I5 at their outer ends, it being apparent that when swinging the clip 55 away from the magazine E5, at its outer end, shot may be placed within this magazine and to enable convenient loading of the cylinder lll the said magazine I5 next to the cylinder is provided with a slot 55 which permits of the urging of the shot into the holes or openings i8 in said cylinder from the magazine i5 and the shot fed to the said cylinder Il cannot drop out of the holes or openings I8 therein in a rearward direction, While the abutting portions of the gun body and the stock at the front side of the said cylinder i1 will assure the retention of the shot within the holes or openings i8 therein.

It will be apparent that when a shot has been discharged from the barrel lll the same remains empty and thus an accidental discharge of shot from the rifle or gun will be presented during the pumping of the said rifle or gun for the pneumatic operation thereof.

The nozzle 33 is removably fitted in the breech end l of the gun body to enable the cleaning thereof or for repair purposes. It also will be obvious that the parts of the riiie or gun are readily deinountable for free accessibility.

The magazine l may be utilized for the storage of shot augmenting the supply in the magazine I5, but such shot as contained within the magazine I6 must necessarily be transferred to the magazine I5 for the feed of such shot therefrom to the cylinder il.

The valves 29 and 35 carry the packings 5i and 58, these being renewable when the occasion requires, to avoid possibility of leakage of compressed air within the chamber 25.

On the uncocking of the hammer head i5 a push pin 3| will be acted upon to unseat the valve 35 and compressed air within the chamber 2B will ow through the passage 32 and nozzle 33 to the discharge barrel I4 for the sending of a shot as contained within the opening or hole I8 in the cylinder I 'l confronting said barrel, the compressed air being delivered directly to the barrel for the discharge of the shot therefrom. The cylinder Il is manually revolved for repeating action of the rifle or gun.

What is claimed is:

l. A rifle of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein,l a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and havinga valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, and a trigger cooking said hammer.

2. A rifle of the kind described comprising a gun stock, a gun body carried by the stockand having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a

valve seated in said block to close the opening therein, a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cooking said hammer, and a pull stem on said hammer for manually retreating the same.

3. A rifle of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged -within the -pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping sidethereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cooking said hammer, a pull stem on said hammer for manually retreating the same, and a latch means in one of the magazines and engageable with the feed cylinder to frictionally latch the same in set position.

4. A rifle of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a for- Ward portion forming a, pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and-of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber `adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cocking said hammer, a pull stem on said hammer for manually retreating the same, a latch means in one of the magazines and engageable with the feedgcylinder to frictionally latch the same in. set position, and a closure clip bridging the discharge barrel and swingingly supported to close the outer ends `of the said magazines.

5. A rifle of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger tted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a Valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cocking said hammer, a pull stem on said hammer for manually retreating the same, a latch means in one of the magazines and engageable with the feed cylinder to frictionally latch the same inset position, a closure clip bridging the discharge barrel and swingingly supported to close the outer ends of the said mag azines, and an adjustable sight slidably connected with the magazines and properly arranged with the barrel.

6. A rifle of the kind described comprising a F gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubu lar extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cooking said hammer, a pull stem on said hammer for manually retreating the same, a latch means in one of the magazines and engageable with the feed cylinder to frictionally latch the same in set position, a closure clip bridging the discharge barrel and swingingly supported to close the outer ends of the said magazines, an adjustable sight slidably connected with the magazines and properly arranged with the barrel, and fore and aft stationary sights on said barrel.

7. A rifle of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a, pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides of the barrel and of less length than the latter, a revolving feed cylinder confror` ng the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubular extension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger coching said hammer, a pull stem on said hammer for manually retreating the same, a latch means in one of the magazines and engageable with the feed cylinder to frictionally latch the same in set position, a closure clip bridging the discharge barrel and swingingly sup ported to close the outer ends of the said magazines, an adjustable sight slidably connected with the magazines and properly arranged with the barrel, fore and aft stationary sights on said barrel, and a knobbed stem operable exteriorly of the pump cylinder and engaged with said plunger.

8. A riiie of the kind described comprising a gun stock, a gun body carried by the stock and having a rear portion forming a breech and a forward portion forming a pump including a cylinder, a discharge barrel superimposed upon said cylinder, tubular magazines arranged at opposite sides the barrel and of less length than the latter, a revolving feed cylinder confronting the said barrel and magazines at their rear ends and having rearwardly tapered shot receiving openings uniformly spaced from each other in a circular trend for register with the said barrel and magazines, a tubular extension on the breech and rotatably supporting the feed cylinder, a block arranged within the pump to provide a compressed air chamber adjacent the breech and having an opening to the pumping side of said pump, an air pumping plunger fitted in said pump cylinder at the pumping side thereof, a valve seated in said block to close the opening therein, a breech nozzle leading from said tubular eXtension for discharging compressed air through the revolving feed cylinder into the discharge barrel, a push pin working in the tubular extension and having a valve for closing communication between the compressed air chamber and said nozzle, an expansion spring between the said valves to normally hold the same seated, a hammer acting upon said push pin and spring controlled, a trigger cooking said hammer, a pull stem on said hammer for manually retreating the same, a latch means in one of the magazines and engageable with the feed cylinder to frictionally latch the same in set position, a closure clip bridging the discharge barrel and swingingly supported to close the outer ends of the said magazines, an

adjustable sight slidably connected with the magazines and properly arranged with the barrel, fore and aft stationary sights on said barrel, a knobbed stem operable exteriorly of the pump cylinder and engaged with said plunger, and a cushioning spring carried by said last-named stem.

NATHAN I-I. PRICE.

Images