US2411934A - Gun charging mechanism - Google Patents

Gun charging mechanism Download PDF

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US2411934A
US2411934A US515447A US51544743A US2411934A US 2411934 A US2411934 A US 2411934A US 515447 A US515447 A US 515447A US 51544743 A US51544743 A US 51544743A US 2411934 A US2411934 A US 2411934A
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gun
breech
bolt
clutch
recoil
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US515447A
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Walter E Naugler
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A7/00Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing; Drives for externally-powered guns; Remote-controlled gun chargers
    • F41A7/02Machine gun rechargers, e.g. manually operated
    • F41A7/06Machine gun rechargers, e.g. manually operated electrically operated

Definitions

  • a clutch for connecting the motor to the member to cause the charging movement'of the breech-bolt, together with means for rendering the connecting means effective, as by preparing the clutch for engagement during each counter-recoil-movement of the breech-bolt, so, if it is necessary, the power of the motor may be applied to the charging member. If the recoilmovement occurs in the normal operation of the I gun, the connecting means is rendered inefiective, the engagement of the clutch being prevented. Means is provided whereby, if the charging member is set in operation by the connecting means, said connecting means is disengaged at the termi nation of the charging movement.
  • I employ a motor, which may be mounted upon the gun, said motor being geared through an interposed clutch to a reciprocatory rack acting upon the breech-bolt.
  • a lever fulcrumed upon the gun, has an arm acting upon the clutch, another arm acted upon by means to engage the clutch, and a third arm acted upon by means to control said clutch, as by freeing it in preparation for engagement in absence of normal recoil or by looking it against engagement if recoil occurs.
  • This controlling means preferably consists of a cam-lever, carried by the charging rack and actuated by the breech-bolt.
  • the third arm of the lever may also serve to cause the disengagement of the clutch at the termination of the charging movement, it being acted upon by a slide movable upon the gun under the influence of the rack.
  • FIG. 1 illustrating the breech-casing of the gun with my improved charging mechanism in side elevation
  • Fig, 2 being a top plan view of said mechanism and the rear portion of the gun-casing;
  • FIG. 3 an enlarged perspective view taken from the rear of Fig. 2, this being of the charging mechanism separated from the gun;
  • FIG. 4 an enlarged, irregular horizontal section, taken generally on the line IV-IV of Fig. 1.
  • the recoil of the breech-bolt produced by the discharge causes the ejection of the empty cartridge-case and the delivery of the succeeding cartridge from the belt into position for introduction into the barrel by the breech-bolt during the counter-recoil. .As long as the circuit of the firing solenoid is maintained closed, this feed of cartridges from the belt and their discharge will normally be maintained. If, however, this normal action is interrupted, as because of the failure of a cartridge to explode, it will be necessary to charge the gun by imparting to the breech-bolt its recoil-movement by a force applied to the stud l8. This force, which must compress the counter-recoil-spring, is considerable, making it difiicult to perform manually and consuming considerable time.
  • my invention efiects the charging of the gun automatically whenever the breech-bolt fails to receive its movement of recoil.
  • a slide 30 Guided in ways in the inner face of the coverplate M, for reciprocation longitudinally of the gun, is a slide 30 to which is attached a charga depression in the slide to hold the rack releasably in its forward inactive position (Fig. 1).
  • a bracket 35 secured to.the cover-plate a small electric motor 35, the rotation of its armature being communicated through reduction-gearing contained in a casing 38 to a pinion 40.
  • This pinion meshes with a gear 42 upon a shaft 44 journaled in the casing, and a pinion 48 upon the shaft 44 meshes with a gear 48 turning about a spindle 50 extending between an extension from the casing 38 and the cover-plate of the gun.
  • Rotatable about the inner end of the spindle is a pinion 52, meshing with the teeth of the rack 32.
  • the rotation of the gear 48 may be communicated to the pinion .52 through a clutch-sleeve 53, rotatable with the gear and movable longitudinally of the spindle; At its inner extremity, the sleeve has teeth 54, adapted to enter between the ends of the teeth of the pinion 52 to effect its rotation.
  • the sleeve is connected to the gear with a capacity for lost motion.
  • a projection 58 lies between projections :58 and 80' from the sleeve (Fig. 3).
  • a tensionspring 82 ,joinin'g the gear to the sleeve, normally ,holdsthe sleeve-projection 58 against the gearprojection.
  • the gear-projection first leaves the sleeve-projection :58; the spring 62 yielding and the pinion remain- ;ing. at rest.
  • a lever L is provided.
  • This Iev'er is fulcrumed by a vertical spindle in a bracket II upon the cover-plate, and has three arms 12, i4- and 18.
  • the upper arm I2 is yoked to enter opposite sides of a circumferential groove in. the sleeve 53 to shift this.
  • the lower arm '14 to cause the movement of the arm I2 and the sleeve, is actuated by the plunger 78 of a solenoid .80 mounted upon the cover-plate I4.
  • the solenoid When energized; the solenoid imparts tothe plunger movement of. a definite extent, this being com- .municated to the lever L through a compressionspring 82interposed between a washer. 84, held in'place upon the outer extremity of the plunger, and a washer 86 abutting against the outer side of the arm 14.
  • the spring 82, washers 84 and 86, and flange 88 may be carried by a plungerextension 80.
  • This extension is threaded into the end of theplunger-proper and retained in its-adjusted position by a check-nut 92.
  • the clutch-teeth -54 are correspondingly moved toward or from .the end of the pinion 52.
  • an expansion-spring 94 interposed between the inner end of the Plunger and:
  • the clutch-solenoid is energized simultaneously with the motor 36 and the firing solenoid 22, so that, as long as theftrigger ofthe gun is actuated, the lever-arm 12 will tend to hold the clutch 54, 52 engaged for the production of the charging. movement of the rack 32. This, however, should occur only in absence of normal recoil. To prevent the engagement of the clutch when such recoil occurs, the rack has fulcrumed at 98 upon its rear extremity a cam-lever 98.
  • a forwardly extending arm I00 of the lever has at its outer side a cam-surface I02, which, upon upward movement of the arm, may be forced against a complementally inclined surface I04 upon the underside of the arm I6 of lever L. This.
  • the lever 88 has a cam-slot I88 opening through its end.
  • the throat of this slot is in the path of the stud 18, so that, upon each 'counter-recoil-movement of the breech-bolt, the stud enters the slot.
  • the inner or forward extermity of the slot lies somewhat beyond the endsurface H8 of the slide, so it is this surface which furnishes operating engagement with the breech-bolt-stud.
  • the slot 108 curves-downwardly and inwardly,v the effectbeing that, when the stud enters the slot, it rocks the lever 88 in a clockwise direction (Fig. 1) by contact with the upper surface II2 of the slot.
  • This unlocks the clutch by removing the arm I80 of the cam-lever 98 from contact with the lever-arm I8, permitting engagement of the clutch and the consequent charging movement of the rack 32.
  • the stud I8 emerges from theslot I88, itbears against a lower surface II4-of said slot to turn the camlever counterclockwise, and thereby engage the lever-arm I8 to. lock the clutch open.
  • the cam-lever is latched by a spring-plunger H6, movable through the end of the rack and entering a depressionIIB in the lever.
  • the slide In the first of these positions, the slide is latched by engagement of a spring-plunger I30, movable in the bracket 1 I, with the rear side of the slide-projection I26, while the active position is temporarily maintained by the engagement of the plunger with the opposite side of this projection.
  • the slide Into vitsclutch-disengaging relation, the slide is urged by contact with a surface I32 uponit of a projection I34 from the forward end of the rack.
  • a projection 36 from theopposite extremity of the rack strikes against a surface I38 upon the slide to release the lever-arm T8 and permit clutch-engagement.
  • the breech-bolt-stud I8 is forward in its counter-recoil position at the end'of the slot I88 in the camlever 88, as appears in Figs. 1 and 3.
  • This stud gin seatingitself in the slot after the passage through the throat, has by contact with the surface H2 withdrawn the cam-surface I02 of the '-arm-'-I06-from-engagement with-the surface I64 'ofthe arm-'15, leaving the clutch lever L free for control by the solenoid 86.
  • the projection I36 of the rack has moved the slide I26 to the right -(Fig. 4), where it is latched by the plunger I36 engaging the rear side of the projection I26.
  • the slide-projection lfl is opposite the depression in theclutch-lever arm 16,-so actuation of the 'clutch-lever'by the solenoid is not interfered with.
  • the gunner presses the trigger of the gun, completing not'only the circuit of the firing solenoid 22, but also that of the motor 36 and the 'clutch solenoidflll'. If an explosion occurs normally, the recoil drives the bolt-stud back, to the rear of the slot I6 in the cover-plate I4.
  • the energization of the solenoid 80 may cause the engagement of the clutch 54, 52, but the travel of the gear-projection 56 away from the sleeve-projec- 'tion 58, where it is held'yieldably by the spring 62-, to 'the projection 60 prevents transmission of power'to the rack 32 during this brief interval.
  • the solenoid 80 may now operate the clutch-lever to shift the clutch-sleeve 153 into driving contact with the pinion 52;
  • the gun may now take up its regular operation, or, if it fails to fire, the action of the charging mechanism will be repeated automatically,
  • H 1 The combination with a gun having a breech-bolt movable in recoil and counter-recoil,
  • a... gun having: a breech-bolt movable in recoil and counter-recoil, of a motor, a movable charging member acting upon the breech-bolt to produce its movement in the direction of recoil, means for connecting the motor to the member to cause the charging'movement of the breech-bolt, said connectingmeans being cap-able of being effective or ineifective' to cause such movement, and means movableby the breech-bolt for rendering the connecting means effective during a portion of each counter recoilmovement of the breech-bolt and for rendering the connecting means ineffective if the recoilmovement of the breech-bolt occurs.
  • ciprocatory breech-bolt movable in recoil and counter-recoil, of a motor mounted on the gun, a. movable charging member acting upon the breech -bolt to produce its movement in the direction of recoil, means for connecting the motor I,
  • gearing connecting the motor to the member to cause itscharging movement, one of the elements of the gearing being Iyieldable with respect to another of said elements, said gearing including a clutch having elements constructed and arranged for engagement with each other to transmit the charging movement from the motor to the member, means for preparing the clutch for engagement in each counter-recoil-movement of the breech-bolt, and means other than the preparing means fo producing engagement of the clutch.
  • a gear rotatable by the motor and meshing with the rack means connecting the motor to the gear including a clutch through which the rotation of the motor is transmitted to the gear, and a member movable upon the rackby contact of the breech-bolt with the member to control the clutch.

Description

Dec. 3, 1946.. w, E, NAUGLER 2,411,934
GUN CHARGING MECHANISM Filed Dec. 25, 1945 2 Sheets-Sheet 1 Inventor Walter E Naug/er fies. 3, 1946. w. E. NAUGLER" 2,411,934
' I I GUN CHAR IN MECVH'ANISM'V I Filed Dec. 23, m4: 1. 2 s uts-sheet 2- fmmmim Walter ENaUg/er y torney Patented Dec. 3, 1946 GUN CHARGING MECHANISM Walter E. Naugler, Beverly, Mass., assignor to United Shoe Machinery Corporation, Fleming- 'ton, N. J., a corporation of New Jersey Application December 23, 1943, Serial No. 515,447
16 Claims.
operations at the breech mechanism, which prepare for the succeeding discharge, If for any reason this recoil does not occur, the action of the gun is arrested until a movement corresponding to that of recoil has been produced. This may be manually, with the expenditure of much time and effort on the part of the gunner, or automatically,
by the application of power from a source external to the gun. It is an object of my invention 'to obtain the charging efiect by simple mechanism' which adds few parts and little weightto the gun, yet acts promptly and positively when recoil is absent. In the attainment of this object,';I combine witha gun having a breech-bolt movable in recoil and counter-recoil, a motor, a movable charging member, as a reciprocatory rackacting upon the breech-bolt to produceits movement in the direction of recoil, and means,
preferably a clutch, for connecting the motor to the member to cause the charging movement'of the breech-bolt, together with means for rendering the connecting means effective, as by preparing the clutch for engagement during each counter-recoil-movement of the breech-bolt, so, if it is necessary, the power of the motor may be applied to the charging member. If the recoilmovement occurs in the normal operation of the I gun, the connecting means is rendered inefiective, the engagement of the clutch being prevented. Means is provided whereby, if the charging member is set in operation by the connecting means, said connecting means is disengaged at the termi nation of the charging movement. More specifically, I employ a motor, which may be mounted upon the gun, said motor being geared through an interposed clutch to a reciprocatory rack acting upon the breech-bolt. A lever, fulcrumed upon the gun, has an arm acting upon the clutch, another arm acted upon by means to engage the clutch, and a third arm acted upon by means to control said clutch, as by freeing it in preparation for engagement in absence of normal recoil or by looking it against engagement if recoil occurs. This controlling means preferably consists of a cam-lever, carried by the charging rack and actuated by the breech-bolt. The third arm of the lever may also serve to cause the disengagement of the clutch at the termination of the charging movement, it being acted upon by a slide movable upon the gun under the influence of the rack.
In the accompanying drawings is shown a ma- 2 chine-gun to which a particular embodiment of my invention is applied,
Fig. 1 illustrating the breech-casing of the gun with my improved charging mechanism in side elevation;
Fig, 2 being a top plan view of said mechanism and the rear portion of the gun-casing;
Fig. 3, an enlarged perspective view taken from the rear of Fig. 2, this being of the charging mechanism separated from the gun; and
Fig. 4, an enlarged, irregular horizontal section, taken generally on the line IV-IV of Fig. 1.
At 10 appears the breech-casing of a machinegun of the Browning type, from the forward extremity of which casing extends the barrel l2. An opening in one side of the casing, here shown as the right, is closed by a removable cover-plate M, in which is'a longitudinal slot l6. Through this slot projects a stud Hi from the breech-bolt 2i], guided to reciprocate within the casing. As is usual in this gun, energization of the firing solenoid 22 mounted upon the opposite side of the casing causes th discharge of a cartridge, which the breech-bolt under the influence of its counter-recoil-spring has inserted in the barrel from a series assembled in a belt. One of these cartridges appears at C in Fig. l. The recoil of the breech-bolt produced by the discharge causes the ejection of the empty cartridge-case and the delivery of the succeeding cartridge from the belt into position for introduction into the barrel by the breech-bolt during the counter-recoil. .As long as the circuit of the firing solenoid is maintained closed, this feed of cartridges from the belt and their discharge will normally be maintained. If, however, this normal action is interrupted, as because of the failure of a cartridge to explode, it will be necessary to charge the gun by imparting to the breech-bolt its recoil-movement by a force applied to the stud l8. This force, which must compress the counter-recoil-spring, is considerable, making it difiicult to perform manually and consuming considerable time.
-During the closure of the circuit of the firing solenoid, my invention efiects the charging of the gun automatically whenever the breech-bolt fails to receive its movement of recoil.
Guided in ways in the inner face of the coverplate M, for reciprocation longitudinally of the gun, is a slide 30 to which is attached a charga depression in the slide to hold the rack releasably in its forward inactive position (Fig. 1). To move the rack rearwardly, and by its engagement with the stud impart to the breechbolt its travel corresponding to that of normal recoil, there is mounted upon a bracket 35 secured to.the cover-plate a small electric motor 35, the rotation of its armature being communicated through reduction-gearing contained in a casing 38 to a pinion 40. This pinion meshes with a gear 42 upon a shaft 44 journaled in the casing, and a pinion 48 upon the shaft 44 meshes with a gear 48 turning about a spindle 50 extending between an extension from the casing 38 and the cover-plate of the gun. Rotatable about the inner end of the spindle is a pinion 52, meshing with the teeth of the rack 32. The rotation of the gear 48 may be communicated to the pinion .52 through a clutch-sleeve 53, rotatable with the gear and movable longitudinally of the spindle; At its inner extremity, the sleeve has teeth 54, adapted to enter between the ends of the teeth of the pinion 52 to effect its rotation. The sleeve is connected to the gear with a capacity for lost motion. From the interior of the gear, a projection 58 lies between projections :58 and 80' from the sleeve (Fig. 3). A tensionspring 82,,joinin'g the gear to the sleeve, normally ,holdsthe sleeve-projection 58 against the gearprojection. When the sleeve in its outward position is disconnected from the pinion 52, it rotates idly with the gear 48. Upon connection .of the: sleeve to the pinion by the teeth 54, the gear-projection first leaves the sleeve-projection :58; the spring 62 yielding and the pinion remain- ;ing. at rest. -This continues until the gearproje'ction engages the sleeve-projection 60, :whereupon the sleeve and pinion begin to rotate, this continuing until the sleeve-teeth are dis- :engaged' from the pinion by outward movement oi the sleeve. r
' To shift the clutch-sleeve 53to produce move- .rment" of the rack rearwardly. of the gun, with the slide 30 in contact with the stud I8 of the breech-bolt, or to free said rack from the driving means for return to its normal position by the bree'ch-bolt-stud, a lever L is provided. This Iev'er is fulcrumed by a vertical spindle in a bracket II upon the cover-plate, and has three arms 12, i4- and 18. The upper arm I2 is yoked to enter opposite sides of a circumferential groove in. the sleeve 53 to shift this. The lower arm '14, to cause the movement of the arm I2 and the sleeve, is actuated by the plunger 78 of a solenoid .80 mounted upon the cover-plate I4. When energized; the solenoid imparts tothe plunger movement of. a definite extent, this being com- .municated to the lever L through a compressionspring 82interposed between a washer. 84, held in'place upon the outer extremity of the plunger, and a washer 86 abutting against the outer side of the arm 14. 'A flange 88 upon the plunger, against which the spring urges the arm 74, determines the normal position of the arm along the plunger and the corresponding position of the clutch-sleeve.- To permit adjustment of this normal relation between the sleeve-teeth 54 and the pinion 52, the spring 82, washers 84 and 86, and flange 88 may be carried by a plungerextension 80. This extension is threaded into the end of theplunger-proper and retained in its-adjusted position by a check-nut 92. As the extension is adjusted in or out, the clutch-teeth -54 are correspondingly moved toward or from .the end of the pinion 52. After energization ,ofthe solenoid, its plunger is restored to its inritial position by an expansion-spring 94, interposed between the inner end of the Plunger and:
the interior of the solenoid-casing.
The clutch-solenoid is energized simultaneously with the motor 36 and the firing solenoid 22, so that, as long as theftrigger ofthe gun is actuated, the lever-arm 12 will tend to hold the clutch 54, 52 engaged for the production of the charging. movement of the rack 32. This, however, should occur only in absence of normal recoil. To prevent the engagement of the clutch when such recoil occurs, the rack has fulcrumed at 98 upon its rear extremity a cam-lever 98. A forwardly extending arm I00 of the lever has at its outer side a cam-surface I02, which, upon upward movement of the arm, may be forced against a complementally inclined surface I04 upon the underside of the arm I6 of lever L. This. holds the lever-arm I2 in its outward posi- .tion, locking the clutch temporarily against engagement. At the opposite side of the fulcrum 88, the lever 88 has a cam-slot I88 opening through its end. The throat of this slot is in the path of the stud 18, so that, upon each 'counter-recoil-movement of the breech-bolt, the stud enters the slot. The inner or forward extermity of the slot lies somewhat beyond the endsurface H8 of the slide, so it is this surface which furnishes operating engagement with the breech-bolt-stud. From its outer opening, the slot 108 curves-downwardly and inwardly,v the effectbeing that, when the stud enters the slot, it rocks the lever 88 in a clockwise direction (Fig. 1) by contact with the upper surface II2 of the slot. This unlocks the clutch by removing the arm I80 of the cam-lever 98 from contact with the lever-arm I8, permitting engagement of the clutch and the consequent charging movement of the rack 32. Whenthe stud I8 emerges from theslot I88, itbears against a lower surface II4-of said slot to turn the camlever counterclockwise, and thereby engage the lever-arm I8 to. lock the clutch open. In its clutch-locking relation, the cam-lever is latched by a spring-plunger H6, movable through the end of the rack and entering a depressionIIB in the lever.
If the energization of the solenoid 80 causes the forward charging movement of the rack 32 by engagement of the clutch, this must be disengaged whensaid rack has completed such movein'ent. For'this'purpo'se a slide I28'is guided in ways !22' at the inner side of the bracket lI. From the outer face of this slide are two projections I24 and I28, the former of which is movable along a depression at the inner side of the lever-arm '16 to occupy either an inactive position, as appears in Fig. 4, or forced against an inclined surface I28 upon the lever-arm. In the first of these positions, the slide is latched by engagement of a spring-plunger I30, movable in the bracket 1 I, with the rear side of the slide-projection I26, while the active position is temporarily maintained by the engagement of the plunger with the opposite side of this projection. Into vitsclutch-disengaging relation, the slide is urged by contact with a surface I32 uponit of a projection I34 from the forward end of the rack. A projection 36 from theopposite extremity of the rack strikes against a surface I38 upon the slide to release the lever-arm T8 and permit clutch-engagement.
Considering the gun is ready for firing, the breech-bolt-stud I8 is forward in its counter-recoil position at the end'of the slot I88 in the camlever 88, as appears in Figs. 1 and 3. This stud, gin seatingitself in the slot after the passage through the throat, has by contact with the surface H2 withdrawn the cam-surface I02 of the '-arm-'-I06-from-engagement with-the surface I64 'ofthe arm-'15, leaving the clutch lever L free for control by the solenoid 86. The projection I36 of the rack has moved the slide I26 to the right -(Fig. 4), where it is latched by the plunger I36 engaging the rear side of the projection I26. The slide-projection lfl is opposite the depression in theclutch-lever arm 16,-so actuation of the 'clutch-lever'by the solenoid is not interfered with. The gunner presses the trigger of the gun, completing not'only the circuit of the firing solenoid 22, but also that of the motor 36 and the 'clutch solenoidflll'. If an explosion occurs normally, the recoil drives the bolt-stud back, to the rear of the slot I6 in the cover-plate I4. As the stud'first travels in the cam-slot I08, the energization of the solenoid 80 may cause the engagement of the clutch 54, 52, but the travel of the gear-projection 56 away from the sleeve-projec- 'tion 58, where it is held'yieldably by the spring 62-, to 'the projection 60 prevents transmission of power'to the rack 32 during this brief interval. Before the lost motion has been taken up, the
stud will have reached the throat of the camslot, striking the surface H4 and raising the arm I06 of the cam-lever. The lever-surface H32 engages the clutch-lever-surface I64, and locks the clutch open and ineffective, so the rack 32 remains at rest; The cam-lever is latchedin this relation by the plunger H5. The breech-bolt is "returned by the counter-recoil-spring to complete the'normal firing cycle, restoring the elements to the positions of Fig. 1.
If the cartridge had not exploded, so there would havebeen no recoil'of the breech-bolt, the energization ofthe motor 36 and solenoid 39 with the firing solenoid 22 would occur as before. Since the arm I60 of the cam-lever has'freed the clutch lever L to prepare for clutch-engagement, as above pointed out, the solenoid 80 may now operate the clutch-lever to shift the clutch-sleeve 153 into driving contact with the pinion 52; The
I20, and forces the projection I24 against the clutch-lever-surface I28, turning such lever to disengage the clutch and terminate the charging 'movement.
The counter-recoil of the breechbolt, throughcontact of the stud with the surface .2 H8, restores the elements to their initial posi- 'tions, as previously indicated. The gun may now take up its regular operation, or, if it fails to fire, the action of the charging mechanism will be repeated automatically,
1 Having. described my invention, what I claim as j new and desire to secure by Letters Patent of the United States is:
H 1. The combination with a gun having a breech-bolt movable in recoil and counter-recoil,
of a motor, amovable charging member acting upon the'breech-bolt to produce its movement in the direction of recoil, means for connecting the motor to the member to cause the charging movement of the breech-bolt, said connecting means being normally ineffective to produce such move- '6 ment, and'means controlled by the breech-bolt for rendering the connecting means efiective;
2. The combination with a... gun having: a breech-bolt movable in recoil and counter-recoil, of a motor, a movable charging member acting upon the breech-bolt to produce its movement in the direction of recoil, means for connecting the motor to the member to cause the charging'movement of the breech-bolt, said connectingmeans being cap-able of being effective or ineifective' to cause such movement, and means movableby the breech-bolt for rendering the connecting means effective during a portion of each counter recoilmovement of the breech-bolt and for rendering the connecting means ineffective if the recoilmovement of the breech-bolt occurs. 7
' '3. The combination with a gun having a breech-bolt movable in recoil and counter-recoil, of a motor mounted on the gun and rotating continuously during the operating period of the gun, a movable charging member acting upon" the breech-bolt to produce its movement in the direction of recoil, means connectingthe motor to the member including a clutch having elements constructed and arranged for engagement with each other in the performance of their function of. transmitting power from the motor :to the member to cause the charging movement of the breech-bolt, and means movable b'y thebreechbolt for preparing the clutch for engagement. e. The combination with a'gun having aireciprocatory breech-bolt movable in recoil and counter-recoil, of a motor mounted on'the gun and rotating continuously duringthe operating period of the gun, a movable charging member acting upon the breech-bolt to produce its movement in the direction of recoil, means connecting the motor to the member including a clutch having elements constructed and arr'angedfor engagement with each other in the performance of their function of transmitting power from the motor to the member to cause the charging movement of the breech-bolt, and means actuated'b'y the breech-bolt upon each counter-recoil mover ment for preparing thelclutch for engagement and for preventing engagement of the clutch if the recoil-movement of the breech-bolt occurs.
5. The combination with a gun having a reciprocatory breech-bolt movable in recoil and 50 counter-recoil, of a motor mounted on the gun, a movable charging member acting upon the breech-bolt to produce its movement in the'direction of a recoil, means for connecting the motor to the member to cause the charging movement 55 of the breech-bolt, said connecting means being capable of being effective or ineffective to'cause such movement, and means having a portion carried by the charging member and actuated by the breech-bolt for rendering the connecting 0 means effective upon each counter-recoil-movement of the breech-bolt and for rendering the connecting means ineffective'if the recoil-movement of thebreech-bolt occurs. I
6. The"combination with a gun having a re- 65 ciprocatory breech-bolt movable in recoil and counter-recoil, of a motor mounted on the gun and rotating continuously during the operating period of the gun, a movable charging member acting upon the breech-bolt to produce its move- 70 ment in the direction of recoil, means connecting the motor to the member including a clutch having elements constructed andarranged for engagement with each other in the performance of their function of transmitting power from the 75 motor to the member to cause the charging movement'of the breech-bolt and for disengagement from each other to stop thecharging movement, means for preparing the clutch for engagement iipon each counter-recoil-m'ovement of the breech bolt, means for producing the engagement of the thus-prepared clutch, and means other than the engaging means for disengaging the clutch at the termination of the charging movement.
7. The combination with a gun having a, re-
ciprocatory breech-bolt movable in recoil and counter-recoil, of a motor mounted on the gun, a. movable charging member acting upon the breech -bolt to produce its movement in the direction of recoil, means for connecting the motor I,
ment in the direction of recoil, gearing connecting the motor to the member to cause itscharging movement, one of the elements of the gearing being Iyieldable with respect to another of said elements, said gearing including a clutch having elements constructed and arranged for engagement with each other to transmit the charging movement from the motor to the member, means for preparing the clutch for engagement in each counter-recoil-movement of the breech-bolt, and means other than the preparing means fo producing engagement of the clutch.
9. The combination with a gun having a breech=bolt, of a motor rotating continuously during: the period of operation of the gun, a member movable upon the gun and acting upon the breech-bolt, gearing rotatable by the motor to move the member, and a clutch controlled by the breech-bolt and through which the rotation of the gearing is transmitted to the member.
10. The combination with a gun having a reciprocatory breech-bolt, of a motor rotating continuously during the period of operation of the gun, a rack guided to reciprocate upon the gun and acting upon the breech-bolt, a gear rotatable by the motor and meshing with the rack, a clutch element constructed and arranged fo engagement with the gear to transmit the rotation of the motor to the gear, and a member movable upon the rack and controlling the engagement of the clutch element.
ll. The combination with a gun having a reciprocatory breech-bolt, of a motor rotating continuously during the period of operation of the gun, a rack guided to reciprocate upon the gun,
a gear rotatable by the motor and meshing with the rack, means connecting the motor to the gear including a clutch through which the rotation of the motor is transmitted to the gear, and a member movable upon the rackby contact of the breech-bolt with the member to control the clutch.
12. The combination with a gun having a, reclprocatory breech-bolt, of'a motor, a rack guided to reciprocate upon the gun, a gear rotatable by the motor and meshin with the rack, means for transmitting the rotation of the'motor to -the gear including a clutch having elements constructed and arranged for engagement with each other to cause rotation of thergear and for disengagement from each other to stop rotation of the gear, a, member movable upon the rack by contact of the breech-bolt to control the clutch, and a member movable by the rack to disengage theclutch.
13.- The combination with a gun having a reciprocatory breech-bolt provided with a projection, of a motor rotating continuously during the period of operation of the gun, a rack guided to reciprocate upon the gun, a gear rotatable by the motor and meshing with the rack, means for transmitting the rotation of the motor to the gear including a clutch having elements con structed and arranged for engagement with each other to cause rotation of the gear, a lever fulcrumed upon the rack and having a cam-slot to receive the breech-bolt-projection and thereby move the lever upon the rack by contact of the projection with the slot-wall, nd means movable by the lever to control the clutch.
14. The combination with a gun having a reciprocatory breech-bolt provided with e, projection, of a motor mounted upon the gun, a rack guided to reciprocate upon the gun, agear rotatable by the motor and meshin with the rack, means for transmitting the rotation of the motor to the gear including a clutch having elements constructed and arranged for engagement with each other to cause rotation of the gear, a lever fulcrumed upon the rack and having a. cam-slot to receive the breech-bolt-projection and thereby move the lever upon the rack by contact of the projection with the slot-wall, means movable by the lever to prepare the clutch for engagement, and slide movable upon the 'gun by the rack to disengage the clutch.
15. The combination with a gun having a reciprocatory breech-bolt, of a motor rotating continuously during the operating period of the gun, a rack guided to reciprocate upon the gun, a gear rotatable by the motor and meshing with the rack, means for transmitting the rotation 'of the motor to the gear including a clutch having elements constructed and arranged for engagement with each other to cause rotation of the gear and for disengagement from each other to stop rotation of the gear, a lever fulcrume'd upon the gun, and means acting upon the leverto engage and disengage the clutch.
16. The combination with a gun havin a reciproc'atory breech-bolt, of a motor mounted upon the gun and rotating continuously during" the operatin period of the gun, a rack guided to reciprocate upon the gun, a gear rotatable by the motor andmeshing with the rack, means for transmitting the rotation of the moto to the gear including a clutch having elements constructed and arranged for engagement with each other to cause rotation of the gear and for disengagement from each other to stop rotation" of the gear, a lever fulcru'med upon the gun and having a plurality of arms, one of said arms being arranged to lock the clutch against engagement, means acting upon a second arm to engage the clutch, and means acting upon a third arm to disengagethe clutch. V g I, I v
WALTER E. NAUGLER.
US515447A 1943-12-23 1943-12-23 Gun charging mechanism Expired - Lifetime US2411934A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274145A2 (en) * 1986-12-12 1988-07-13 Rutten S.A. Electromecanique Air gun
US20160076837A1 (en) * 2014-09-17 2016-03-17 David A. Dierks Remote gun charger with manual charging release functionality
US20160102934A1 (en) * 2014-10-08 2016-04-14 Jesse L. Davison Gau-21 trigger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274145A2 (en) * 1986-12-12 1988-07-13 Rutten S.A. Electromecanique Air gun
EP0274145A3 (en) * 1986-12-12 1988-09-14 Centro Innovat Rech Applic Air gun
US20160076837A1 (en) * 2014-09-17 2016-03-17 David A. Dierks Remote gun charger with manual charging release functionality
US9523544B2 (en) * 2014-09-17 2016-12-20 Contract Fabrication & Design Remote gun charger with manual charging release functionality
US20160102934A1 (en) * 2014-10-08 2016-04-14 Jesse L. Davison Gau-21 trigger

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