Патент USA US2406089код для вставки
mg. 26, 1946! J. A. E. MARTINEAU ROTARY BARREL GUN Filed April 8, .1944 2 Sheets-Sheet 1 2, 14. J. A. E. MARTINEAU 2,406,089 ROTARY BARREL GUN' Filed April 8, 1944 2 Sheets-Sheet 2 ‘ ? Patented Aug. 20, ‘1946 2,406,089 UNITED STATES PATENT OFFICE 2,406,089 ‘ROTARY BARREL’ ‘GUN Joseph Albert-Euciide Martineau, Penticton, British Columbia, Canada Application April 8, 1944, Serial No. 530,100 ,7 In Canada April 24, 1943 9 Claims. (C1: 89—1) 1 2 The present invention pertains to a novel gun and has for its object, the provision of a gun that The-‘casing ! is extended at 6 and similarly the barrel 2 is extended at l. The extension 1 is preferably formed with ribs or ?ns 8 engaging the extension‘ 6. The extension ‘I prolongs‘the path of the bullet and thus trues its course. The outer end of barrel 2 is knurled at 9 (Fig spins the bullet without ri?ing in the bore. One of the objections to riding is the ‘cost of the ‘mechanical work involved. Also, the ri?ing wears down in time by friction with the bullet. The function, on the other hand, retards the bullet. These objections are avoided, in the construc tion herein described, ‘by a means for rotating the gun barrel. The rotation is accomplished by means of a turbine rotor attached to ‘the barrel and driven by the gas liberated on explosion of the cartridge. The turbine is built and assembled compactly around the magazine. Another characteristic of the invention is that successive shots increase the angular velocity of the barrel and hence of the spinning. No such cumulative eiiect results from the usual helicoidal rifling groove. The invention is fully disclosed by way of eX ample in the following description and in the ac companying drawings in which: Figure l is a partial longitudinal section of the barrel; ' Figures 2 and 3 are sections on the lines 2--2 and '3—3 of Figure 1; . ‘7 Figure'll is an end View of the barrel; ure '7) to receive a rotor disk ll) (Figure 11) which has its inner circumference knurled at H. At opposite sides of the rotor arev stator plates I2 and i3, the former being mounted on the barrel 2 and the latter having‘a rearward breech exten sion if?! providing a ?ring chamber. The plate 53 is threaded at i5 on its periphery for thread ing into a ring l6 surrounding the rotor Iii and 15 holding the plate l2, as shown in Figure 5. The stator further includes a ring I‘! enclosing the rotor E0. The plates l2 and it are grooved eccentrically ., at i8 ‘near the center. The rotor ID has four 20 radial slots it (Figure 11) in which are received slidable blades 20 (Figure 10). One end of each blade has outwardly extending ?ns 2| received in the cam slots I 8 respectively. The ring [1 is grooved interiorly at 22 (Figure 8) opposite the protruding part of the cam grooves I8 to permit the corresponding outward movement of the blades 20 while the rotor is actuated in a'manner presently to be described. ‘ Figure 5 is a longitudinal section on line 5—-5 From the bore of the breech extension ‘M ex of Figure 8 of another portion of the barrel and 03 Q tends a radial port 23 (Figure 13) on which is gun; seated a valve 24. A chamber 25 formed in the Figure 6 is a section on the line 6—‘~6 of Fig stator disk [3 communicates with the interior of ure 5; the ?ring chamber when the valveis opened. The Figure 7 is an elevation of one of the rotating motive fluid for actuating the rotor is the gas , liberated by the explosion of a cartridge 26 in the blocks; Figure 8 is a cross ‘section of the ‘gun on line ?ring chamber. A port 21 in the disk I 3 connects 8—8 of Figure 5; the chamber 25 with the spaces between the Figures 9, 10 and 11 are respectively end view blades 20 of the rotor it at one end of the of the barrel, perspective View of one of the groove 22. blades, and an elevation of the rotor disk; 40 ‘The cam grooves l8 hold the blades 20 against Figure 12 is a side elevation of the gun; the inner edge of the ring ll, except at the intake ' Figure 13 is a section on the line I3—I3 of Fig and ‘exhaust, as shown in Figure 8. Thus, the ure 5, and pressure gas admitted through port 27 turns the - Figure 14 is a detail section of the valve on line rotor clockwise. Communicating with the other I4—l4 of Figure 13. . 45 end of the groove 22 is an exhaust port 28 formed Reference to these views will now be made by in- the plate 13 and registering with a port 29 in use of like characters which are employed to des a tube 39 accommodating the turbine vand other ignate corresponding parts throughout. parts. It will be noted that the intake port 27 In Figure 1 is shown, the casing l of the gun, has an angular branch 3| which directs the pres in which is rotatably mounted the barrel 2 in 50 sure ?uid in a tangential path into the turbine bearing 3. Several such bearings may be pro for greater efficiency. vided, as shown in Figures 1 and 5. The bearings The gas from the exploded cartridge is also are ?nned at 4 (Figure 3) for radiation. Like permitted to escape through a port 32 (Figure 5) wise the casing I is slotted lengthwise at 5 for in the stator plate 13, to which is attached a tube cooling. 55 33. This tube forms part of a device for expelling 2,406,089 3 4 the empty shell and loading a fresh cartridge barrel, said extension providing a ?ring chamber, into the breech extension, actuated by pressure a pair of stator disks in said casing, a rotor be through the port 32. This mechanism is not de tween said disks and secured to said barrel, radial scribed in detail inasmuch as it forms the sub blades slidably mounted in said rotor, means in stance of another application. When only one 5 said disks for sliding said blades, and a connec cartridge is to be ?red, the port 32 is obstructed tion for ?uid from said chamber to the space be by manually setting a cranked screw 34. tween said disks for actuating said rotor. In the enlargement 30 and forward of the disk 4. In a gun, a casing, a barrel rotatably mount I2 is a block 35 (Figures 5 and '7) having for ed therein, a rearward breech extension for the wardly extending ?ns 36 for radiation. The block 10 barrel, said extension providing a ?ring chamber, is surrounded by a split spring ring 3‘! to prevent a pair of stator disks in said casing, a rotor be leakage of gas from the turbine. The casing I is tween said disks and secured to said barrel, radial provided with a handle 38 (Figure 12) by which blades slidably mounted in said rotor, said disks the gun may be held and steadied. The enlarge having eccentric grooves facing each other, ?ns ment 3 is enclosed in a tube .39 held by a set 15 extending from said blades into said grooves, and screw 40. A pin 4| extending from the enlarge a connection for ?uid from said chamber to the ment 30 into a slot v£12 in the tube 39 completes space between said disks for actuating said rotor. the enclosure. ' 5. In a gun, a casing, a barrel rotatably mount The admission of gas from the chamber M to ed therein, a rearward breech extension for the the rotor and the operation of the latter have 20 barrel, said extension providing a ?ring chamber, already been described. The valve 24 on the in a rotor ?xed to said barrel, means forcommuni take port 23 is normally held closed by a rocker eating gas from said chamber to said rotor to arm 43 (Figure 14) under the in?uence of a spring actuate the latter, a block adjacent to said rotor, ‘44. The explosion pressure opens the valve and cooling ?ns extending from said block. against the spring, and the valve closes immedi- 25 6. In a gun, a casing, a barrel rotatably mount ately afterward. . ed therein, a rearward breech extension for the The rotor it], being splined on the barrel 2, barrel, said extension providing a ?ring chamber, turns the barrel in its bearings 3. The bullet head ‘a pair of stator disks in said casing, a rotor be 45 travelling through the barrel 2 is thus rotated tween said disks and secured to said barrel, a con without the use of ri?ing or helicoidal grooves in 30 nection for fluid from said chamber to the space the barrel.’ After the ?rst shot, the rotational between said disks for actuating said rotor, a block speed of the barrel increases with each succeeding adjacent to one of said disks, and cooling ?ns shot, thus creating a cumulative e?ect which is extending from-said block. 7 not possible with ordinary ri?ing. In the opera '7. In a gun, a casing, a barrel rotatably mount tion the slidable blades 20 are operated by ?ns 35 ed therein, a rearward breech extension for the 2| received in cam groove l8. rI'he expanding barrel, said extension providing a ?ring chamber, gases admitted through port 21 turns the rotor a rotor ?xed to said barrel, a pair of stator disks clockwise. When needed, the loading mechanism in said casing, a rotor between said disks and (not shown) may be made towork at various, secured to said barrel, one of said disks having speeds or not at all by screwing up the cranked 40 a chamber and an inlet connecting said chamber screw 34 which obstructs more or less port 32. to said» rotor, said disk having an exhaust port The invention also eliminates the usual draw connected to said rotor. backs of helicoidal grooves, such as their cost, 8. In a gun, a casing, a barrel rotatably mount-~~ wear by friction with the bullet head, and retar ed. therein, a rearward breech extension for the dation of the bullet head because of such friction. 45 barrel, said extension providing a ?ring chamber, Although a speci?c embodiment of the inven; a rotor ?xed'to said barrel, a pair of stator disks tion has been illustrated and described, it will be in said casing, a rotor between said disks and se understood that various alterations in thedetails cured to saidibarrel, radial blades slidably mount of construction may be made without departing ed in said rotor, means in said disks ‘for sliding vfrom the scope of the invention as indicated by 50 said blades, one of said disks having a chamber the appended claims. and an inlet connecting said chamber to said What I claim as my invention is: : ~ 1 . rotor, said disk-having an exhaust port connected 1. In a gun, a casing, a barrel rotatably mount . to said rotor. ‘ ' ed therein, a rearward breech extension for the 9. In a gun, a casing, a barrel rotatably mount barrel, said extension providing a ?ring chamber, 55 ed therein, a rearward breech extension for the a rotor ?xed to said barrel, and means for com barrel, said extension providing a ?ring chamber, municating gas from said chamber-to said rotor a pair of stator disks in said casing, a rotor be to actuate the latter. a tween said disks and secured to said barrel, radial 2,. In a gun, a casing, a barrel rotatably mount blades slidably mounted. in said rotor, means in ed therein, a rearward breech extension for the 60 said disks for sliding said blades, one of said disks barrel, said extension providing a ?ring chamber, having a chamberand an inlet connecting said a pair of stator disks in said casing, a rotor‘be chamber to. said rotor, said’disk having an ex tween said disks and secured. to said barrel, and haust port connected to said rotor, a block adja--v a connection for ?uidv from said chamber to the cent to one of said disks, and cooling ?ns extend space between said disks for actuating said rotor, 65 ing from said blocks. ' 3. In a gun, a casing, a barrel rotatably mount: ed therein, a rearward breech extension for the JOSEPH ALBERT EUCLIDE MARTINEAU.