US2068823A

US2068823A - Air gun

Info

Publication number: US2068823A
Application number: US709178A
Authority: US
Inventors: Schmeisser Hugo
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-02-07
Filing date: 1934-01-31
Publication date: 1937-01-26
Anticipated expiration: 1954-01-26

Description

Jan-` 26, 1937.

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H.SCHMEBSER n AIR GUN Filed Jan. s1, 1934 lin!" im". Y

2 sneetsl "Hi N Jan. 26, 1937. H. scHMElssER 2,058,323

. AIR GUN Filed Jan. 31, 1934 2 Shets-Sheet 2 Lg/enfer Q70 fz'mgz'ssef Patented Jan. 26,1937'l UNITED' STATES PATENT OFFICE Application January 31, 1934, Serial No. 709,178 In Germany February 7, 1933 For the purpose of practice in handling and shooting with military rifles, air guns are made which are charged by means of a so-called Mauser lock. This Mauser lock consists of a cylindrical compressing piece on which, in a similar manner to military ries, the breech bolt is placed.

In order to charge the air gun, the breech bolt 4is pushed forward in a slot of the compression chamber sleeve, and by means of a curved compression piece on the compression sleeve the greatest opposing end thrust of the compression spring is overcome.

The air guns just described have the great disadvantage that the compressing of the compression spring, in spite of the curved charging piece, is still far too hard to operate, Vso that the penetrating power of the weapon must be reduced.

The removal of this disadvantage, that is, en-

abling the gun to be charged as easily as possible with increasing load, while at the same time keeping the operation similar to that of the military rifle, is achieved essentially (making use of the principle of lever charging) by arranging that the compressing lever is operated in the direction-of the barrel axis and that that part of it which protrudes fromvthe gun is arranged to swing transversely to the barrel axis in a similar way to the breech bolt of military ries. The

handle is then connected with the compressing lever by means of a link which allows it to swing in a transverse direction. The compression chamber, as well as. the chamber for receiving the compression spring, and also the chamber for receiving the rod of the air piston when in the charged position, preferably lie between the centre of rotation of the compressing lever and the point where the force of this is applied.v The compression spring passes through the chamber carrying the compression spring, which chamber in its continuation constitutes, at the same time, the compression chamber, or connects up to such a chamber.

In order to make the air gun more similar to the military rie in its handling and shooting, according to a further object of the invention it may also be formed as a repeating rie and provided with a magazine. According to the invention the shots lie in the magazine one above the other, and are led successively to the barrel byv means of a spring and feeder. The magazine placed in the gun, whereby the shots can freely enter the barrel one after the other. 'I'he stop consists preferably of a slide actuated by a spring, and which normally projects through an inclined guide into the shot pocket and over the upper 5 edge of the magazine, while when the magazine is inserted, the slide is guided into the releasing position by the slide striking against the interior of the gun.

By means of the arrangement and construction 10 of the magazine in accordance with the invention, the disadvantages existing with the known repeating air guns are avoided, these consisting in that the feeding device, when filled with a large number of shots, can only be emptied again 15 with great difficulty and trouble and, in View thereof, the complete discharging of the gun after shooting is often neglected, and it then represents a certain danger in unskilled hands.

In addition, the complete absence of shots in `a 2o gun can not be denitely determined in known shot-feeding devices. Beside the avoidance of these disadvantages, the magazine or the shotfeeding device in the gun according to the invention, has the advantage of being simple and of 25 functioning with certainty.

A constructional example of the gun according to the invention is shown in the drawings.

Figure 1 shows the most important middle part of the air gun with magazine, in a vertical longi- 3 0 tudinal section, with the air piston in the charged condition and the compressing lever moved forward again. The backward position of the compressing lever in the compressing position is shown dotted. 35

Figure 2 is a cross sectional view of the middle part of the air gun showing the compressing lever handle swung round about the axis of the barrel.v

Figure 3 is a plan view of the air piston.

The air piston 2 moves in the compression cyl- 40 inder l which is connected at the front end with the barrel. The compression spring 3, which bears against a pressure disc 4 at the rear, is mounted over the rod 2a of theair piston 2. In the rod 2a of the air piston, and in an extension 45 of the cylinder are slots 2b and Ib, in which moves the compressing lever 5, whose centre of rotation 5a is, in the example shown in the drawings, underneath the extension. At the end of the piston rod 2a is the compression catch 2d, with 50 which the trigger 8 engages in the charged position in a known manner. The compressing lever 5 has an extension formed as a breech bolt, and carries a knob 5b at the place where it is held, this in the present case being made spherical or pear-shaped as in the case of a breech bolt. At the point Wherel the compressing lever takes the pressure of the compression spring, it is provided with a curved hump 5c. This curved hump bears against the surface 2c in the slot 2b of the air piston. The pressure disc 4 is supported against the abutment sleeve 6 which in turn is provided with slots for the movement of the operating handle like the compression cylinder I and is supported at the rear against a base 1, closing the cylinder. That part of the operating lever forming the breech bolt is made rotatable about a joint 5d, so that the handle 5b, when movedl linto ythe forward position of the operating lever, can

be swung to the right, transversely to the barrel axis, through about 90.

When the operating lever 5 is drawn back by hand, it carries the piston 2 back with ,it, owing to its bearing on the surface 2c and thereby compresses the compression spring 3, this meanwhile being supported against the abutment sleeve 6, throughthe intermediary of the pressure disc 6. At the end of the movement of the piston 2, the trigger 8`engages in the compression catch 2d, of the piston 2. The operating lever 5 is again moved forward, without load, and in its end position the handle is swung to the right about the axis of the barrel. The air gun is now charged and loaded.-

-The magazine 9 is mounted in the stock of the gun at the rear end of the barrel (Figure 1). In this is avertical pocket, whose cross section is adapted exactly to the actual shot used. The shot lie one above the other in this pocket, and are raised towards the pocketopening by the feeder I0, which is acted on by the pressure of the feederspring II. At the side of this pocket is arranged the lever-like stop I3, which can swingabout a pin I2. 'Ihe spring I4 causes the upper lever arm of the vstop to tip over into the opening of the pocket, whereby the exit of the uppermost shot from the magazine is prevented. The lower pin I5 limits the small longitudinal movement which the stop I3 executes in addition to the lever movement.

In the blocked condition theupper lever -arm of the stop protrudes with a surface I3a' above the upper edge of the magazine casing 9. If the tained the nature of my ysaid invention and in what manner the same is to be performed, I declare that what I claim is:-

1. Air gun with shot feeding device comprising a housing containing a compression cylinder communicating with the barrel of the gun, an air piston in said cylinder, a piston rod, a compression spring for actuating the piston, a lever operable in the plane of the barrel axis for loading the said spring-and an abutment sleeve in said housing rearwardly of the piston between which latter and the sleeve the spring is mounted, said cyl- Inder,- abutment sleeve and piston rod having 4complementary slots for guiding the lever.

2. An air gun with shot feeding device comprising a barrel, a housing containing a compression cylinder communicating with the barrel, an air piston in the compression cylinder, a piston rod, a compression spring for actuating the piston, a lever for cooking the compression spring, said lever being pivoted in the gun about an axis below the housing and guided by slots in the housing and the piston rod, a curved hump on said lever engaging the rear end of the slot in the piston rod when the spring is being cocked, and a handle on said lever which handle can be turned transversely, to the barrel axis.

3. An air gun with shot feeding device comprising a barrel, a housing containing a compression cylinder communicating with the barrel, an air piston in the compression cylinder, a piston rod, a compression spring for actuating the piston, a lever for cocking the compression spring, said lever being pivoted in the gun abo'ut an axis below the housing and guided by slots in the housing and the piston rod, a curved hump on said lever engaging the rear end of the slot in the piston rod in the line ofY action of the compression spring when said spring is being cocked, and a handle on said lever which handle can be turned transversely to the barrel axis.

4. An air gun with shot feeding device comprising a barrel., a housing containing a compression cylinder communicatingr with the barrel, an air pistonv in the compression cylinder, a piston rod, a compression spring for actuating the piston, a lever for cocking the compression spring, said lever being pivoted in the gun about an axis below the housing and guided by slots in the housing and the piston rod, a curved hump on said lever engaging the rear end of the slotI in the piston rod in the line of action of the compression spring when said spring is being cocked, and a handle on said lever which handle can be turned transversely to the barrel axis, the location of the le- .ver axis below the housing being intermediate of the ends .of the slot in the piston rod when the spring is cocked.

5. An air gun with shot feeding device comprising a barrel, a housing containing a compression cylinder communicating with the barrel, an air piston in the compression cylinder, a piston rod, a compression spring for actuating `the piston, a lever for cooking the compression spring, said lever being pivoted in the gun about an axis near the bottom of the housing and a handle connected by a hinge to said lever and projecting through the top of the housing, said handle being movable on the hinge transversely to the barrel axis.

6. An air gun with shot feeding device comprising a barrel, a housing containing a compression cylinder communicating with the barrel,

' an air piston in the compression cylinder, a piston rod, a compression spring for actuating the piston, a lever for cocking the compression spring said lever being pivoted in the gun about an axis near the bottom of the housing, and a handle connected by a hinge to said lever and projecting through the top of the housing, said handle being movable' on the hinge transversely to the barrel axis and the axis of the hinge being substantially at right angles to the longitudinal axis of said lever and said handle.

HUGO SCHMEISSER.