This invention relates to Gatling machine guns.
More particularly, the invention relates to an improved feeder/delinkker in a Gatling machine gun.
In a further respect, the invention relates to application pertains to an improved access assembly for the feeder/delinker of a Gatling machine gun.
In another respect, the invention pertains to an improved light weight feeder sprocket for the feeder/delinker of a Gatling machine gun.
A long existing motivation in the design of Gatling machine guns is to minimize jams and extend the operational life of the guns. This motivation is tempered by the natural tendency of human beings to “leave things as they are” and by the long existence of the motivation. For example, the conventional feeder sprocket addressed by the invention has existed for decades without being altered. Similarly, the conventional two door access to the feeder/delinker of a Gatling gun has existed for nearly nine years without change, and the conventional cover that predated the two door access existed for decades prior to the advent of the two door access.
Accordingly, it would be highly desirable to provide an improved feeder/delinker for a Gatling machine gun.
Therefore it is a principal object of the invention to provide an improved access assembly and feeder sprocket for a Gatling machine gun.
These and other, further and more specific objects of the invention will be apparent to those skilled in the art from the following detailed description thereof, taken in conjunction with the drawings, in which:
Briefly, in accordance with the invention, I provide an improved gatling gun. The gun includes a barrel assembly including a plurality of circumferentially mounted gun barrels; a motor to rotate the barrel assembly; and, a feeder/delinker to receive a belt of linked cartridges, separate cartridges from the belt, and feed the cartridges for firing. The feeder/delinker includes a feeder/delinker housing; a shaft mounted in the feeder/delinker housing; a drive gear mounted on the shaft, operatively associated with the motor, and rotationally coupled to the shaft and to the plurality of gun barrels; a push rod guide housing mounted in the feeder/delinker housing on the shaft and including a plurality of spaced apart, parallel, longitudinal guide slots each parallel to the gun barrels; a plurality of push rods each slidably mounted in one of the longitudinal guide slots in the push rod guide housing; a slide channel apparatus rotationally coupled to the drive gear to oscillate each of the plurality of push rods forwardly and rearwardly; a secondary cartridge holding construct mounted on the shaft forwardly of the push rod guide housing, and including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing; a secondary cartridge stripping construct mounted on the shaft forwardly of the secondary cartridge holding construct, including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing, and shaped and dimensioned to receive and prevent longitudinal movement of a cartridge link such that when a linked cartridge positioned in one of the holding constructed grooves, one of the stripping construct grooves is displaced longitudinally by an associated push rod, and the push rod is moved longitudinally by the slide channel apparatus, the stripping construct retains the cartridge link and permits the cartridge to be freed from the link; and, a feeder sprocket to receive cartridges from the stripper construct after the cartridges have been freed from cartridge links. The cartridges each include a casing, a tapered, conically shaped shoulder, and a tapered, conically shaped neck. The feeder sprocket includes a plurality of grooves each aligned with one of the guide slots in said push rod guide housing; shaped and dimensioned to slidably receive and dispense a cartridge; and including tapered guide surfaces contoured to conform substantially to at least a portion of each of the tapered, conically shaped shoulder, of the tapered, conically shaped neck, and of the casing. The gun also includes a single access door mounted on the feeder/delinker housing and movable between at least two operative positions, a first closed operative position, and a second open operative position. The access door includes a plunger to contact and secure a linked cartridge in the holding and stripping constructs when the access door is in the second open position. The plunger is movable between at least two operative positions, a first operative position with a portion of the plunger stored in the access door, and a second operative position with a portion of the plunger deployed from the access door.
In another embodiment of the invention, I provide an improved gatling gun. The gun includes a barrel assembly including a plurality of circumferentially mounted gun barrels; a motor to rotate the barrel assembly; and, a feeder/delinker to receive a belt of linked cartridges, separate cartridges from the belt, and feed the cartridges for firing. The feeder/delinker includes a feeder/delinker housing; a shaft mounted in the feeder/delinker housing; a drive gear mounted on the shaft, operatively associated with the motor, and rotationally coupled to the shaft and to the plurality of gun barrels; a push rod guide housing mounted in the feeder/delinker housing on the shaft and including a plurality of spaced apart, parallel, longitudinal guide slots each parallel to the gun barrels; a plurality of push rods each slidably mounted in one of the longitudinal guide slots in the push rod guide housing; a slide channel apparatus rotationally coupled to the drive gear to oscillate each of the plurality of push rods forwardly and rearwardly; a secondary cartridge holding construct mounted on the shaft forwardly of the push rod guide housing, and including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing; a secondary cartridge stripping construct mounted on the shaft forwardly of the secondary cartridge holding construct, including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing, and shaped and dimensioned to receive and prevent longitudinal movement of a cartridge link such that when a linked cartridge positioned in one of the holding constructed grooves, one of the stripping construct grooves is displaced longitudinally by an associated push rod, and the push rod is moved longitudinally by the slide channel apparatus, the stripping construct retains the cartridge link and permits the cartridge to be freed from the link; and, a feeder sprocket to receive cartridges from the stripper construct after the cartridges have been freed from cartridge links. The cartridges each include a casing, a tapered, conically shaped shoulder, and a tapered, conically shaped neck. The feeder sprocket includes a plurality of grooves each aligned with one of the guide slots in said push rod guide housing; shaped and dimensioned to slidably receive and dispense a cartridge; and including tapered guide surfaces contoured to conform substantially to at least a portion of each of the tapered, conically shaped shoulder, of the tapered, conically shaped neck, and of the casing.
In a further embodiment of the invention, I provide improved gatling gun. The gun includes a barrel assembly including a plurality of circumferentially mounted gun barrels; a motor to rotate the barrel assembly; and, a feeder/delinker to receive a belt of linked cartridges, separate cartridges from the belt, and feed the cartridges for firing. The feeder/delinker includes a feeder/delinker housing; a shaft mounted in the feeder/delinker housing; a drive gear mounted on the shaft, operatively associated with the motor, and rotationally coupled to the shaft and to the plurality of gun barrels; a push rod guide housing mounted in the feeder/delinker housing on the shaft and including a plurality of spaced apart, parallel, longitudinal guide slots each parallel to the gun barrels; a plurality of push rods each slidably mounted in one of the longitudinal guide slots in the push rod guide housing; a slide channel apparatus rotationally coupled to the drive gear to oscillate each of the plurality of push rods forwardly and rearwardly; a secondary cartridge holding construct mounted on the shaft forwardly of the push rod guide housing, and including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing; a secondary cartridge stripping construct mounted on the shaft forwardly of the secondary cartridge holding construct, including a plurality of grooves each aligned with one of the guide slots in the push rod guide housing, and shaped and dimensioned to receive and prevent longitudinal movement of a cartridge link such that when a linked cartridge positioned in one of the holding constructed grooves, one of the stripping construct grooves is displaced longitudinally by an associated push rod, and the push rod is moved longitudinally by the slide channel apparatus, the stripping construct retains the cartridge link and permits the cartridge to be freed from the link; and, a feeder sprocket to receive cartridges from the stripper construct after the cartridges have been freed from cartridge links. The cartridges each include a casing, a tapered, conically shaped shoulder, and a tapered, conically shaped neck. The feeder sprocket includes a plurality of grooves each aligned with one of the guide slots in said push rod guide housing; shaped and dimensioned to slidably receive and dispense a cartridge. The gun also includes a single access door mounted on the feeder/delinker housing and movable between at least two operative positions, a first closed operative position, and a second open operative position. The access door includes a plunger to contact and secure a linked cartridge in the holding and stripping constructs when the access door is in the second open position. The plunger is movable between at least two operative positions, a first operative position with a portion of the plunger stored in the access door, and a second operative position with a portion of the plunger deployed from the access door.
Turning now to the drawings, which depict the presently preferred embodiments of the invention for the purpose of illustration thereof, and not by way of limitation of the invention, and in which like characters refer to corresponding elements throughout the several views,
As is well known, during operation of the Gatling gun 10, motor 12 causes the barrel assembly to rotate and each barrel 16 fires sequentially in rapid succession. During such operation, the feeder/delinker 20 receives a belt of linked ammunition. Feeder/delinker 20 functions to remove cartridges from the belt and sequentially feed the cartridges for firing.
The internal guide assembly 53 found in the housing of a prior art feeder/delinker 20 is illustrated in
Guide assembly 53 includes a shaft 90 and a series of components mounted on shaft 90. These components, from right to left in
Seven equally spaced U-shaped longitudinal slots 50A are formed in housing 50 and are parallel to barrels 16. An arcuate outer surface 50B extends between each adjacent pair of slots 50A. Each groove in a sprocket 54 to 59 is aligned with one of slots 50A. Each slot 50A slidably receives a push rod 85. Each push rod 85 includes a wheel 86 rotatably mounted on an axle 87. Axle 87 is fixed and does not rotate. The wheel 86 of each push rod 85 is captured in and moved along a spiral slide channel indicated in
Sprockets 55 and 56 comprise a secondary cartridge holding construct. The grooves in sprockets 55 and 56 are designed to receive a portion of a cartridge 40.
Sprockets 54, 57 and 58 comprise a secondary cartridge stripping construct. These sprockets are designed to receive and prevent longitudinal movement of a cartridge link in a ammunition belt so that the cartridge can be pushed free of the link by a push rod 85. The stripping construct “holds” the cartridge link while the cartridge is pushed free. By a push rod 85.
The feeder sprocket 59 receives each cartridge 40 that is separated from an ammunition belt by a push rod 85, and then hands off the cartridge for firing.
A cartridge 80 includes a cylindrical hollow casing 84 comprising the rear portion of cartridge 80. A primary conical tapered shoulder 81 extends from casing 84 to a conical tapered neck 82. Neck 82 extends from shoulder 81 to bullet 83. Accordingly, in
The light weight feeder sprocket 59A of the invention is depicted in
Semi-conical groove portion 71 extends approximately half way around shoulder 81. Semi-conical groove portion 72 extends approximately half way around neck 82.
Semi-conical groove portion 71 extends from the front of shoulder 81 to the rear of shoulder 81. The entire shoulder 81 is located in slot 60A during the time cartridge 80 is seated in feeder sprocket 59A.
In contrast, semi-conical groove portion 72 only extends from about the middle of neck 82 to the rear of neck 82, and, therefore, groove portion 72 only extends over a section of the back portion of neck 82. Consequently, the forward portion of neck 82 that extends from approximately the middle of neck 82 to the front of neck 82 is not located inside slot 60A of feeder sprocket 59A when cartridge 80 is seated in feeder sprocket 59A. Instead, the forward portion of neck 82 extends outwardly from feeder sprocket 59A in the manner illustrated in
The width W of feeder sprocket 59A is greater than the width of the prior art feeder sprocket 59. This increased width permits sprocket 59A to contact and support shoulder 81 and neck 82, respectively, in the manner described above.
Groove portion 71 can, as illustrated by dashed lines in
Importantly, surfaces 71, 72, 71A, 71b, 72A, 72B more effectively control movement of a cartridge into and out of feeder sprocket 59A, increase the operational life of sprocket 59A, reduce the likelihood that a cartridge will jam while traveling into and out of sprocket 59A, and enable the use of blank rounds, slap rounds, and specialty ammunition without malfunction.
As is illustrated in
In one presently preferred embodiment of the invention, only a single access door 100 is provided for the feeder/delinker 20.
In
Plunger 110 includes a bottom surface including portion 200 which bears against a cartridge 40 when door 100 is in the partially closed position, and includes a stop tab 220 with bottom surface 210. Plunger 110 also includes opening 250 formed therethrough (
Release lever 150 is also pivotally spring loaded on base 120 and includes tooth or lip 170. Pin 160 extends through aperture 16A (
Door 100 can be opened in the direction of arrow B (
When door 100 is in the completely open position, portion 200 of the bottom surface of plunger 110 is spaced apart from, above, and not contacting a cartridge 40 when the cartridge 40 is in the feeder/delinker in the position illustrated in
When door 100 is moved from the completely open position in the direction of arrow A in
Once door 100 is in the partially closed position of
In
It is important to note that when door 100 is nearly closed, the portion 200 of the bottom of plunger 110 that is contacting a cartridge 40 in the feeder/delinker is raised slightly to provide clearance between the cartridge 40 and the bottom of the plunger. This clearance can vary as desired, but presently is about five thousandths of an inch. Pocket 47 and stop tab 220 are configured and shaped and dimensioned such that as door 100 is nearly closed, the bottom surface 210 of stop tab 220 slides over the bottom 47A of pocket 47 to displace plunger 110 a short distance upwardly in the direction of arrow M so that plunger 110 no longer touches cartridge 40 and does not touch any portion of the belt of ammunition being fed into the feeder/delinker 20.
When door 100 is in the closed position, lip 170 of lever 150 is engaged in aperture 17A to lock door 100 in the closed position.
In use, a user manually displaces lever 150 inwardly in the direction of arrow C to disengage lip 170 from opening 17A and then opens door 100 in the direction of arrow B from the closed position of
Having described the invention and presently preferred embodiments and the best modes thereof in such terms as to enable one of skill in the art to make and use the invention, I Claim:
This application claims priority based on provisional patent application Serial No. 61/007,565, filed Dec. 13, 2007, and is a continuation-in-part of non-provisional patent application Ser. No. 12/316,349, filed Dec. 11, 2008.
Number | Date | Country | |
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61007565 | Dec 2007 | US |
Number | Date | Country | |
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Parent | 12316349 | Dec 2008 | US |
Child | 12454647 | US |