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Publication numberUS2837076 A
Publication typeGrant
Publication dateJun 3, 1958
Filing dateApr 1, 1957
Priority dateApr 1, 1957
Publication numberUS 2837076 A, US 2837076A, US-A-2837076, US2837076 A, US2837076A
InventorsAlfred Holz, Koci Jerry C, Leslie Dreyer Everett
Original AssigneeChicago Dynamic Ind Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Simulated pneumatically operated machine gun
US 2837076 A
Abstract  available in
Images(5)
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Claims  available in
Description  (OCR text may contain errors)

June 3, 1958 J. c. KOCI ET AL 2,837,076

SIMULATED PNEUMATICALLY OPERATED MACHINE GUN Filed April 1, 1957 5 Sheets-Sheet 1 QIIIIIIIIIIIIIIIIIE 39 44 INVENTORS. 40 43 38 (JERRY 6. K00/ BY AF E0 l-lo VII/I IIIIIIIA 5 9 Fl n z A! A/ J 7 Y5 {1/14 I THE/2 ATTOX/VEJGZ June 3, 1958 J. c. KOCI ETAL SIMULATED PNEUMATICALLY OPERATED MACHINE GUN 5 Sheets-Sheet 2 Filed April 1, 1957 June 3, 1958 J. c. KOC] ET AL 2,837,076

SIMULATED PNEUMATIC'ALLY OPERATED MACHINE GUN Filed April 1, 1957 I 5 Sheets-Sheet 3 IN V EN TORS. (/A'RR Y 6. K0 0 HEIR rro/en zrs.

June 3, 1958 J. c. KOCl ET AL 2,837,076

SIMULATED PNEUMATICALLY OPERATED MACHINE GUN Filed April 1, 1957 5 Sheets-Sheet 4 June 3,1958 J. c. Kocl ETAL 2,837,076

SIMULATED PNEUMATICALLY OPERATED MACHINE GUN Filed April 1, 1957 5 Sheets-Sheet 5 2534 INVENTORS. I Q35 (/ERR) 6. 4 04 I 22 3 V M'@%4 H Z58 United States Patent SIMULATED PNEUMATICALLY OPERATED MACHINE GUN Jerry C. Koci, Barrington, and Alfred H012 and Everett Leslie Dreyer, Chicago, 111., assignors to Chicago Dynamic Industries, Inc., a corporation of Illinois Application April 1, 1957, Serial No. 649,990

19 Claims. (Cl. 124-13) Our invention relates to new and useful improvements in a simulated pneumatically operated machine gun and has for its principal object the provision in a device of this character of an amusement type gun for use in shooting galleries or the like which possesses the construction, appearance and mode of operation of an authentic machine gun.

An object of our invention is to provide in a device of this character a means for self-generating the pneumatic pressure used for each firing of the gun thus obviating the need for an air compression pump and air storage tank.

Yet another object of our invention is the provision in a device of this character of a shot magazine together with a shot distributing mechanism for delivering a shot into position to be pneumatically fired.

Another object of our invention is the provision in a device of this character of a ming mechanism.

Another object of our invention is the provision in a device of this character of a means for regulating the minimum number of shots to be pneumatically fired.

Other objects will appear hereinafter.

The invention consists in the -novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings showing the preferred form of construction, and in which:

Fig. 1 is a perspective view of our pneumatically operated machine gun;

Fig. 2 is a side perspective view of the internal operating mechanism of our machine gun;

Fig. 3 is an opposite side perspective view similar to Fig. 2;

Fig. 4 is a top plan view of our machine gun without the magazine and exterior casing thereof;

Fig. 5 is a fragmentary sectional view taken on line 5-5 of Fig. 2.

Fig. 6 is a fragmentary side sectional view taken on line 66 of Fig. 5;

Fig. 7 is a fragmentary top sectional view of the clutch mechanism as employed in our gun;

Fig. 8 is a fragmentary side sectional view of the pneumatic generating means and shot distributing mechanism of our gun;

Fig. 9 is a perspective view of the shot guide member and sealing element of our gun;

Fig. 10 is a bottom plan view of the same; and

Fig. 11 is a side elevational view of a spring-urged roller switch employed in our gun.

Our improved simulated machine gun is pivotally and rotatably mounted upon a base 10. The base 10 may in actual assembly be a part of a table top, platform or the like. The gun normally is pivotally mounted upon a horizontal shaft 11 carried by a bracket 11' rotatably supported by a support shaft 10'. In the normal inoperative position the gun will rest upon the bracket 11 in a shot agitator and anti-jamlCC position whereby the barrel is in a slightly raised horizontal position with respect to the baseltl.

The gun has an outer casing 12 which is removably fitted over a skeleton frame work consisting of a bottom plate 13 having vertical side fianges 14. The rear portion of the gun is providedwith handles 15, one of which provides an actuating switch (not shown), of any approved construction. The gun may be employed as an amusement device or training apparatus as it is constructed to simulate an authentic machine gun. In the event it is employed as an amusement device, it is desired that it should be coin-actuated and for that purpose a coin slot 16 is provided in the rear portion of the casing 12 as shown in Fig. 4.'

Carried by the plate 13 and slightly rearwardly of the shaft 11, so as to be off-set with respect to the center of gravity of the gun when mounted on the shaft 11 is an electric motor 17. This motor 17 drives a shaft 18. Mounted on this shaft 18 are series of fan blades'19 for circulating air within the casing 12 when the electric motoris operated.

Referring to Fig. 7, we show a clutch mechanism 20. This mechanism 20 includes a fixed hub 21 mounted on and rotatable with the shaft 18 of the motor 17. This hub 21 has a laterally protruding finger 22 therefrom. The connecting disc 23, of a semi-shock absorbing material, is mounted upon the finger 22 and acts as a driving coupling between the hub 21 and a driven hub 24 carried at one end of a driven shaft 25. The hub 24 has a laterally extending finger 26 which like the finger 22 of the hub 21 projects into, and connects therewith the disc 23 with the driven hub 24.

A cup-shaped clutch disc 27 is fixedly connected to the hub 24 by means of a screw 25'. This clutch disc 27 is carried by suitable roller bearings 28 provided by a second driven clutch disc 32. This driven clutch disc 32 is fixedly attached as at 33 to and drives the driven shaft 25. The clutch disc 32 is rotatably supported by suitable roller bearings 34 carried by a circular socket 35 formed as a part of a tripod casing 36. I

The uprights 31 are pivotally connected to horizontally extending bars 37 which bars 37 are in turn pivotally connected to the socket 35 of the tripod casing 36, Figs.

2 and 3. p

The lower ends of the uprights 31 are pivotally journalled upon an actuating shaft 38, Fig. 5. This shaft 38 is provided with recesses 38 adjacent each end thereof. Restraining rods 40, each having a bifurcated head 39 which head is frictionally fitted into the recesses 38' resiliently hold the shaft 38 in its desired position hereinafter more fully described. The free ends of the restraining rods 40 are movably journalled in passages .41 formed in the rear legs 42 of the tripod casing 36, Figs. 2 and 3. Expansion springs 43 embrace the rods 40 and bear against the legs 42 of the casing 36 and urge the bifurcated heads 39 against the shaft 38 for a purpose hereinafter made apparent.

Under such an-arrangement, the shaft 38 is actually suspended from and between the uprights 31 in spaced relation below the clutch mechanism 20, Figs. 2 and 3, this by reason of the pivotal connection of the bars 37 with respect to the socket 35 of the casing 36 and the pivotal connection of the uprights 31 to the housing 29 of the clutch mechanism 20, with the ends of the shaft To move the clutch disc 27 into driving engagement 7 with the clutch disc 32, I provide an electrically operated solenoid 44. This solenoid has an armature 45 which has formed at one end thereof a hook portion 46, Figs and 6. The hook 46 has a spring-bias connection to a pivot arm 47 of an eccentric pivot plate 48. This springbias connection is obtained by forming a slot 49. in the arm 47 through which the hook 46 protrudes. A Washer 50 embraces the arm 47 and an expansion spring 51 is placed on the arm 47 between the washer. 50 and the pivot connection 52 between the arm 47 and plate 48. When the armature 45 is electrically drawn into the solenoid 44, the hook 46 will bear against the washer 50 which in turn will compress the spring 51. The increased compression of the spring 51 will move the arm 47 in the direction of the movement of the armature 45 of the solenoid 44. The arm 47 will in turn, through its pivotal connection 52 to the plate 48, pivot such plate about its pivotal support 53. The movement of the arm 47 and plate 48 is resisted. when the connection therebetween engages the end of the solenoid 44, however, the armature 45 may continue to be drawn into the solenoid 44 as the hook 46 moves through the slot 50 against the tension of spring 51. A guide bracket 54 is provided for supporting and guidingthe free end of the arm 47 as shown in Figs. 5 and 6.

The plate 48 has mounted thereon in an eccentric relation with respect to its pivotal support 53, a vertically extending actuating roller 55. This roller 55 will engage the shaft 38 and move it horizontally against the tension of the springs 43 and the restraining rods 40 as they are moved into the passages 41 formed in the legs- 42 of the casing, 36, Figs. 2 and 3.

The shaft 38, when it is so moved horizontally, will in turn pivot the uprights 31 about their pivotal connection to the bars 37. As the housing 29 and the clutch disc 27 are pivotally carried by the uprights 31 by means of the pins 30, they too will be moved through a horizontal plane, so as to be brought into driving connection with the driven clutchdisc 32 which in turn will drive the shaft 25. This, operation is brought about by the energization of thesolenoid 44. When the solenoid 44 is deenergized, the armature 45 as well as the plate 48,

will be returnedto theiroriginal position by the spring 49' carried by the guide bracket 54. The plate 48 and its eccentrically mounted actuating roller 55 will be pivoted away from the shaft 38 so it may be returned to itsoriginal position by reason of the springs 43- and the rods 40.

The foregoing fully describes the construction and operation of the clutch mechanism 20 as used in our gun.

The driven shaft 25, through its drive connection with the driven shaft 18 of the electric motor 17 by reason of' the actuation of the clutch mechanism 20, will-drivea series of gears for the purpose of loading and firinga shot or shots from the gun. f

The shaft 25 extends from the clutch mechanism 20 and passes through a vertical circular bearing56formed as .a part of the tripod casing 36. The shaft 25. terminates into a pinion gear.57.. This pinion gear 57 operatively meshes with the. gear teeth of a gear. wheel 58, Figs. 2 and 3. This wheel gear 58 is rotatablyjournalled on a shaft 59 carried by one leg 42 of the tripod casing.

36, Fig. 3.

Between the socket and the bearing 56 of the tripod casing 36, a wormgear 60 is carried by the shaft 25. This worm gear 60 meshes with a spur gear. 61

carried by the lower end of a rotatable shaft 62 supported 1 at one end by the tripod casing 36, Fig. 3. Theupper end of the shaft 62 is formedinto a pinion gear 63- which meshes with the toothed peripheral edge of -a gear plate 64.

The bottom plate 13 has supported therefrom in spaced relation by posts 65 a cylinder block 66,.Figs. 2, 3 and 8.

The block 66 provides a cylinder chamber 67' through,

, cess 82 in which seats a spring 83.

which a piston 68 is oscillated. The piston 68 is driven by a connecting rod 69 pivotally carried and actuated by the gear wheel 58, Figs. 2 and 3. This block 66 also provides a seat for the gear plate 64. The stroke of the piston 68 in the cylinder chamber 67 creates the necessary pneumatic pressure for the firing of a shot or shots from the gun.

The chamber 67 has an air port 70 communicating with an air passage 71 which extends through a barrel 72 threadably connected to the block 66, Fig. 8. An enlarged barrel casing 73 is positioned on the barrel '72 and connected thereto by means of a bolt 74.

A sealing gasket 75 is placed between the gear plate 64 and the block 66. This gasket also acts as a Wear preventive ring between the two as the gear plate 64 is rotated about a center hub 76 of the block 66 in a manner hereinafter made apparent.

The gear plate 64 is dish-shaped on its upper surface and has formed therein a plurality of shot receiving apertures 77. These apertures are adapted to be rotated about the hub 76 of the block 66 so that each of them will successively register with a shot passage 78 formed through the gasket 75 and block 66 and which has communication with the air passage 71 of the barrel 72, Fig. 8.

Fixedly secured to the hub 76 of the cylinder block 66 is a shot guide member 79. This member 79 also provides an insert sealing element 80 which is preferably made of a nylon material and which is spring biased into sealing contact with the gear plate 64 immediately above the shot passage 73. This sealing member 80 will seal off the shot passage 78 when a shot aperture 77 is rotated so as to be in vertical alignment with the shot passage 78. Such a seal prevents the compressed air developed by the stroke of the piston 68 in the chamber 67 from escaping through such passage 78 and aperture 77.

The guide member 79 is attached to hub 76 of the cylinder block 66 by means of a bolt 81 that is threaded into the block 66, Fig. 8. The aperture through which the bolt 81 is threaded is also an oil port for the cylinder chamber 67. The member 79 has formed therein a re- A washer 84 embraces the bolt 81 between the hub thereof and the spring 84. As such the member 79 as well as the gear plate 64 is spring biased in its connection with respect to the cylinder block 66. Such a connection does not interfere withtherotatability of the gear plate 64. To prevent rotation of the guide member 79, a pin 85 carried thereby frictionally projects into a restraining bore 86 formed in the top surface of the hub 7 6, Fig. 8.

One side of the guide member 79 is notched out as at 87. Figs. 9 and 10. A guide element 88 is attached to the side of the member 79 adjacent the notched out portion 87. This element83 is provided with an exit slot 89 through which is adapted to pass shots that are carried by the top surface of the gear plate 64 when. it rotates, and which shots are not positioned in apertures '77 formed in such plate 64. These rejected shots will pass to the rear of the member 79 and will be agitated in a circular path described by the rotation of the plate 64, until they become seatedv in any of the apertures 77 thereof. A' shot seated in any of'the apertures 77 will pass beneath the sealing element 80 and fall into the passage 78 and hence in the barrel air passage 71.

A shot magazine 9!), Figs. 2, 3 and 8, is remova'bly positioned within the casing 12-above and in spaced relation to the heretofore described operating mechanism. Immediately above the plate 64, the magazine 9% is provided with a circular opening 91 through which the shots fall onto the rotating dish-shaped gear plate 64.

The magazine has pivotal latches 92, Figs. 2 and 3, carried thereby which include wing nuts 93 threaded thereon. These latches 92? fit into grooves formed in a side bracket: 94carried by the-posts 65; The rear end of the magazine 90 is frictionally supported by the rear portion of the gun casing. As such the magazine 90 is removably attached in an operative position with respect to the loading and firing mechanism of this device.

T o prevent a shot from passing out of the air passage 71 of the barrel 72, a spring loaded detent ball 95* is positioned in the air passage 71 as shown in Fig. 8. The tension of the spring load is overcome by suitable pneumatic pressure generated by the piston 68 when it reaches its upper-most positionin the cylinder chamber 67 thereby causing the shot to be forced over and to depress the detent ball 95.

In actual operation of our game, we have found it advantageous tohave the gun fire in bursts? say, to have three or four shots fired by each actuation of a trigger means. in order to achieve this, it is necessary to maintain the energization of the solenoid 44 so that the clutch mechanism will remain in its operative position tov reciprocate the piston 68 in the chamber 67 and to rotate the gear plate 64 to deliver shots to the air passage 71 from whence they areto be fired. For this purpose, we have provided a cam actuated switch 95, Figs. 3 and 11. This switch 95 is carried by a band clamp 96, fixedly connected to the solenoid block 66. This switch 95 is provided with an actuating roller 97 which is spring biased. This roller 97 is adapted to engage cam surfaces 98 formed on the bottom surface of the gear plate 64 adjacent the peripheral edge thereof. This switch 95 is normally open and will be closed by such cam surfaces 98.

A like switch 99 as shown in Fig. 3, is positioned on the opposite side of the outer barrel 73 by the band clamp 96. This switch 99 is of the sameconstruction as switch 95 except that its internal switch blades are normally closed. This switch 99 has a like spring urged roller 100 which is normally in engagement with the under side of the gear plate 64 to the rear of the cam surfaces 98. This switch 99 is normally closed and functions as an anti-jamming switch. If more than one shot, which is preferably in the form of buckshots or BBs, becomes jamed in a shot aperture 77 when the gear plate 64 passes under the sealing element 80, or becomes jammed in the .channel 91 between the top surface of the cylinder block 66 and the bottom surface of the gear plate 64, such jammed shot will cause the gear plate 64 to raise from its seat upon the cylinder block 66 against the tension of the spring 83 and thus permit the roller 100 of the switch 99 to raise and open the normally closed switch blades of the switch 99, thus breaking the electric current to'the machine.

In the preferred form as shown by the drawings herein, our gun is coin-operated and its complete cycle of operation is as follows:

When a coin is inserted into the coin slot 16, the master solenoid 101 is energized. This solenoid 101 will close switch 102, Fig. 4. The switch 102 will effect energization of the electric motor 17. The motor 17 will in turn drive the shaft 18 and cause the rotation of the clutch disc 27. When the trigger means is pulled to simulate shooting of the gun, the clutch solenoid 44 will be energized to operate the clutch to drive the disc 32 and shaft 25. This shaft will, through gears 57 and 58, reciprocate the piston 68 in the cylinder chamber 67, thus generate pneumatic pressure for each shot. The shot delivering means which includes as a part thereof the gear plate 64 will rotate by reason of gears 60, 61, shaft 62, gear 63, and gears on the peripheral edge of the gear plate 64. The rotation of the gear plate 64 will close the switch 95 by reason of the cam surfaces 98 eing moved into engagement with the roller 97 of the switch 95. Such switch 95 will then be closed and will hold the solenoid 44 energized for a predetermined period of time determined by the length of the cam surfaces 98. Timing switches 103 carried by a bracket 104 of the cylinder block 66 will be closed by reason of a cam disc This is to 105. The cam disc 105 is rotated through the energizaa tion of a timing motor 106. This motor 106 has been energized by the closing of the trigger means and is main tained energized by reason of switch '95. The cam disc 105 is provided with a series of notches 107 which will determine the amount of shots given for each coin. Under such a construction, the timing motor 106 is only energized each time the trigger means is actuated. So also is the gear plate 64 and piston 68 actuated only upon the closing of the trigger means notwithstanding that the electric motor 17 is energized by reason of the master solenoid 101 which has been energized by the coin and maintained energized by the energization of the timing motor 106, through the cam closed switches 103. The gears driving the piston 68 and the gear plate 64 as well as the spacing of the shot receiving apertures 77 formed in the gear plate 64 are so related that a shot is delivered to the air passage 71 of the barrel 72 only upon the start of the upward stroke of the piston 68 in the cylinder chamber 67. The opening and closing of the burstswitch 95 is determined by the length of the cam surfaces 97 and is so computed so as to affect stopping ofthe reciprocation of the piston 68 at its lower most position with respect to the cylinder chamber 67 When the predetermined number of shots have been fired, the

timing motor 106 will have rotated the cam disc 105 a,

sufiicient distance to open the timing switch 103 thus deenergizing the solenoid 101 and stopping the motor 17 While we have illustrated and described the preferred form of construction for carrying our invention into effect, this is capable of variation-and modification without departing from the spirit of the invention. We, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail ourselves of such variations and modifications as come within the scope of the appended claims.

Having thus described our invention, what we claim as new and desire to protect by Letters Patent is:

1. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end 'of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel,- an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, and means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, means cooperating with said delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means.

2. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating.

said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, and means for preventing operation of said gun when said delivering means becomes inoperative for delivering a shot to said barrel to be fired.

3. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, means cooperating with said delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means, and means for preventing operation of said gun when said delivering means becomes inoperative for delivering a shot to said barrel to be fired.

4. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, and a cam actuated switch cooperating with said delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means.

5. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, and a cam actuated switch for preventing operation of said gun when said delivering means becomes inoperative for delivering a shot to said barrel. to be fired.

6. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch'means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to'said barrel for each reciprocation of said piston in said cylinder, means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, a cam actuated switch cooperating with said delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means, and a cam actuated switch for preventing operation of said gun when said delivering means becomes inoperative for delivering a shot to said barrel to be fired.

7. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operativeiy connecting said motor to said piston and said delivering means, a trigger means for said gun, an electric solenoid operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston .in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, and means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel.

8. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, a chain of gears actuated by said clutch for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, and means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel.

9. A pneumatically operated simulated machine gun comprising a gun casing having a barrel, a shot magazine within said casing, a shot delivering means having communication with said barrel and said magazine, an air cylinder having open communication with one end of said barrel, a motor driven piston reciprocable in said cylinder for generating pneumatic pressure for firing shots from said barrel, an electric motor, clutch means for operatively connecting said motor to said piston and said delivering means, a trigger means for said gun, means operatable by said trigger means for actuating said clutch to operate said piston and said delivering means, means for coordinating the reciprocation of said piston in said cylinder and said delivering means so that a shot is delivered to said barrel for each reciprocation of said piston in said cylinder, and means for sealing said shot delivering means when said piston is reciprocated in said cylinder so as to fire a shot from said barrel, said last named means including a sealing element carried by said cylinder and operable upon said delivering means when it delivers a shot to said barrel to prevent the escape of pneumatic pressure generated by said reciprocating piston.

10. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane soas to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston.

11. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said'cylinder, an electric motor within said casing, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel,

means for operatively connecting said rotatable plate to inder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, means for energizing said motor for. a predetermined period of time, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, means cooperating with said trigger means for determining the period of time said motor is energized, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having opencommunication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment withrespect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston, and means cooperating with said shot delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means.

13. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston, and means for sealing said shot apertures during the period of delivering a shot to said barrel to prevent escape of the pneumatic pressure generated by said reciprocating piston.

12. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine within said casing, an air cylinder having open communication withcasing having a barrel, a shot magazine within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, means for energizing said motor for a predetermined period of time, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, means cooperating with said trigger means for determining the period of time said motor is energized, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot ing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, means for energizing said motor for a predetermined period of time, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, means cooperating with said trigger means for determining the period of time said motor is energized,

.clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by saidcylinder and having open communication with said magazine, said. cylinder having a channel in communication with; said shot delivering means and said barrel, said shot delivering means comprising arotatable plate. having formed therein a plurality of shot receiving aperturesrotatable into communication with said channel, means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shotreceiving apertures in vertical alignment with respect to. said channel so as to deliver a shot from said magazine. to. said barrel for each reciprocation of said piston, and means cooperating with said shot delivering means, for, actuatingsaid clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger. means, and means for preventing operation of said gun when said delivering means becomes inoperative to deliver a shot to said barrel for firing therefrom.

15. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, means for energizing said motor for a predetermined period of time, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, means cooperating with said trigger means for determining. the period of time said motor is energized, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, means for operatively connecting said rotatable plate to saidpiston reciprocating means for rotating said plate through a horizontal plane. so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to saidbarrel for each reciprocation of said piston, a cam-actuated switch cooperating with said shot delivering means for actuating said clutch actuating means after its initial actuation by said trigger means for regulating the number of shots to be fired by each actuation of said trigger means, and a cam-actuated switch for preventing operation of said gun when said delivering means becomes inoperative to deliver a shot to said barrel for firing therefrom.

16. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising'a gun casing having a barrel, a shot magazine Within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, motor-driven gear means for reciprocating said piston in said cylinder, an electric motor Within said casing, clutch means for operatively connecting said motor to said motor-driven gear means,

trigger means for said gun, clutch actuating means re sponsive to said trigger means for operatively connecting said motor to said motor-driven gear means, a shot delivering means carried by said cylinder and having open municationwith said channel, means for operatively connecting said rotatable plate to said motor-driven gear means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment With respect to said channel so as to deliver -a shot from said magazine to said balrel for each reciprocation of said piston.

17. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, a solenoid-operated clutch means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston.

18. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine Within said casing, an air cylinder having open communication with one end of said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, means for reciprocating said piston in said cylinder, an electric motor within said casing, clutch means for operatively connecting said motor to said piston reciprocating means, trigger means for said gun, clutch actuating means responsive to said trigger means for operatively connecting said motor to said piston reciprocating means, a shot delivering means carried by said cylinder and having open communication with said magazine, said cylinder having a channel in communication with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, gear means for operatively connecting said rotatable plate to said piston reciprocating means for rotating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston.

19. A coin-controlled pneumatically operated machine gun for use as an amusement device comprising a gun casing having a barrel, a shot magazine Within said casing, an air cylinder having open communication with one end of. said barrel, a reciprocating piston in said cylinder for generating pneumatic pressure for firing shots from said barrel, motor-driven gear means for reciprocating said piston in said cylinder, an electric motor Within said casing, clutch means for operatively connecting said motor to said motor-driven gear means, trigger means for said gun, clutch actuating means responsive to said in communication"with said shot delivering means and said barrel, said shot delivering means comprising a rotatable plate having formed therein a plurality of shot receiving apertures rotatable into communication with said channel, gear means for operatively connecting said rotatable plate to said motor-driven gear means for retating said plate through a horizontal plane so as to successively position each of said shot receiving apertures in vertical alignment with respect to said channel so as to deliver a shot from said magazine to said barrel for each reciprocation of said piston.

References Cited in the file of this patent UNITED STATES PATENTS Smith Jan. 14, Aigner Nov. 17, Fcltrnan Apr. 15, Feltman Feb. 23, Knowles May 1, Cook Sept. 18,

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3802407 *May 17, 1972Apr 9, 1974Imazu MApparatus for shooting a projectile shaped additive into molten steel
US4286886 *Dec 28, 1979Sep 1, 1981Savin CorporationMethod and apparatus for controlling the feed of projectiles in a microballistic printer
US4329070 *Nov 7, 1980May 11, 1982Savin CorporationMethod of avoiding collisions of projectiles in a microballistic printer
US4351617 *Mar 3, 1981Sep 28, 1982Savin CorporationMicroballistic printer
US6857422Jan 26, 2004Feb 22, 2005Tricord Solutions, Inc.Portable electric driven compressed air gun
US7712462Feb 7, 2005May 11, 2010Impulse Solutions, LlcPortable electric-driven compressed air gun
US8430085Jan 18, 2011Apr 30, 2013Tippmann Industrial Products, IncAir powered belt-fed gun
Classifications
U.S. Classification124/56, 124/72, 124/65, 124/51.1
International ClassificationF41B11/02, F41B11/00
Cooperative ClassificationF41B11/57, F41B11/54, F41B11/52
European ClassificationF41B11/52, F41B11/57, F41B11/54