US1431059A - Gas-controlling attachment for gas-operated guns - Google Patents

Description

C. SUTT'ER.

' GAS CONTROLLING ATTACHMENT FOR GAS OPERATED GUNS.

APPLICATION FILED FEB.27, 1922.

1,431,059, v Patented 0015.3,1922.

. Patented Oct. 3, 1922.

nears, stares P Fig.5 1

CHARLES Summit, or susnsnns, FRA CE- GAS-CONTROLLING ATTACHMENT'FOR GAS-OPERATED GUNS.

Original application filed March 25, 1921, Serial No. 455,701. @Divided and this application filed February 27, 1922. Serial No. 539,517. a I

'Z 0 all whom it may concern: I Be it known that I, CHARLES SUTTER, a .citizen of'the Republic of France, residing. at Suresnes, Seine, France, have invented .certain new and useful Improvements in .Gas-Controlling Attachments for Gas-Op- I, erated Guns; and I do hereby declare the following to be a full, clear, andgexact .description ofthe invention, such as will en- 10. able others skilled in the art to which it appertains to make and use the same.

4 .My. present invention relates to improved means ,for regulating or controlling, the relative amount ofthe powder gases delivered .1 from the bore of the gun to the motor piston in a gas operated gun.

The violence of the recoil of the motor piston would, of course, depend not only ,upon the work it is called uponto do, but primarily uponthe volume and pressure ofv the powder gases that escape from the barinder containing the motor piston.- In order to have the gun work w1th regu- 2 5 larity, it is desirable to have the passages clear through which the powder gases pass from the gun barrel to the cylinder, and substantially uniform in minimum cross section; I There is a tendency, incident to j the operation of such guns, for these pas- .sages to become clogged up due to the solid jmatter carried along with the gases which adhere 'to the walls of the passage or pasages and ultimately clog up the same.

40 become clogged or. choked for any reason,

and to prevent any clogging up of such of the, gas-ports as are out of action for the time being. while the gun is in operation.

A further object of. the invention is to ensure a perfect. gas-tight joint for preventing any leakage of the. powder gases as they'tra'vel between the gas-port formed in the gun barrel and the gas-port formedin the nozzle head ofthe device.

.50 M resent invention is es eciall in- .l y P p y.

"tended as a division'of my application entitled Improvements in automatic machine 7 guns,-filed March 25, 1921, Sera- N 0. 455,701.

My invention will be more fully understood after. reference to the accompanying Myp resent invention relates not only to w ducts or passages, say three 7, f and 7, the.

interfering with the proper fit of the @plug F drawings, in which like parts areindicated by similar reference symbols throughout the I several views, andin which H Figure 1- shows a side elevation of part of the barrel pcrtion of a'gas operated gun with the cylinder, for the motor piston at tached, parts. being shown in section. 1

Figure 2 shows in side elevation, on a larger scale, the arrangement by means of which the amount of powder gases delivered ,to the motor piston may be .modified according to I requirements.

= Figure I 3 shows a vertical longitudinal section of the parts shown in Figure 2.

Figure eL-shows a. section along the line 4-4 of Figure 3, looking in the direction of the arrows, parts being shown in elevation; and

Figure 5 shows. a section along the line 55 of Figure 3, lookingin the direction of, 7 5.

the arrows, parts being shown in elevation. ,rel. of the gun'and enter the operating cylserves also as the carrier ring of the piece.

Thisband is fitted over the barrel A and I has the gas-ports which registers with the gas-port a from, the horse, and also has the gas-delivery'porte formed in the nozzle head 6 In the ring-E is bored transversely a cylindrical'slot 6 into which isfitted a plug F, provided with an angular opening 7" into which may be introduced asuitable instrument, such as a key, for rotating the plug when desired.

The plug F is formed with ainumber of 9 5 diameters of which differ. The diameter of each. duct' may be chosen at will for the 'purpose of. duly modifying the amount of the powder gases delivered to the motor piston. Those-portions of the periphery of the plug debouchinto the perforation 6. may be re duced n diameter as shown at 7, f, Fig .5, so as .to minimize fr1ct1on,w1thouthowever f-The plug maybe held in its adjusted position' by means ofla set screw G. ,3 v

Assuming that it be desired to allow a relatively limited amount of the powder '110 I 'F from which theductsf, f and fido not time securing zv'continuous gas-tightcon necti'on'between ports'e and e on'the one e the gunner selectssay the duct f and causes it to communicate with thetwo-said gas-ports. WVhen the plug'F is properly ad- .escape of auportion of the powder gas, a cylinder fast to the gun, and a motor piston adapted toreciprocate in said fc-y-linder,"'of a band secured on said barrel and provided justed for theselected duct f. the gunner drives the set screw G home, so as to causethe oppositeside. of the-periphery 0f theplug to make a gas-tight joint against the opposite wall of the perforation 6 and effec'tivel'y' prevent any gas reaching the remaining ductssayf f while at the 'same hand and duct ffon the other. I

omaeasng theset' screw f l h F becomesfl'oo'se' and" may be [adjusted to i another pos'ition'and is then tightened up" agaimwhile furthermore it may be readily? removed-altogether"for purposes of'exa min'ationand cleansing, if and when required. Finally, the device i's',"or maybe,=equipped w'ith'suitable marks which, being made visible from theeXterior, will*enable the gunner "clesir ed; but obviously thenumber. of saidvill of, the"mannfacturer. I I j It-will be-obvio'usthat various modificaducts may be increased ,or'" decreasedat the tions might be made'in the hereinide'scribed construction, and'in 'the combination and "arrangement of "parts which could be used Pointed out in theblaiins. v

."Having thus described my" invention what I claim and desire to secure by fLett-ers Pat- "e'nt'ofthe UnitedStates is with the barrel and carrier ring delivering ducts in the wall'sthereof, both orifices of with the barrel and carrier. ring delivering substantially cylindrical pl'ugha'ving. a series.

each of which iducts debou ch from thepe- {rip'hery of said member. I A

2. In a. gas operated un'," the combination,

' 'a' portion of'the powder gases from the 'bore of" the gun to the motorpiston, of a revoluble of transversely "disposed separate ducts/in 'the said plug, andimeans'for locking said one of said ducts, while isolating the remainder of said ducts by means of a gas tight joint or joints.

,In a gas operated gun, the combination with a barrelprovided with a port for the with a downwardly projecting portion having a gas port therein registering withv said drical bore intersecting the gas ports pm 'vided in said band, andia substantially cylindricalplug providedfwithfa series of transversely disposed ducts in the walls thereof, each adapted to form a'continu'ous passage with said last mentioned;ports, and

thusfto permit the 'flow of gas'ifrom said barrel :to said cylinder, through'one duct'i.

only while the other ducts are completely 1,

masked. e p p p 4; In agasoperated the combination with a barrel provided with a port for theescape of a portion of the powder gas, a cylinderfast to the gun, anda motor piston .7

adapted torecipro'cate in'said cylindnbf a .band secured'on said barrel and provided "with a downwardly projecting; portion having a gas port: therein registerlng "withfsaid "gas port in the barrel and also a port" opening into said'cylinder, the saidf downwardly projecting portion vvof said band beyin'g -a1so"provided with a transverse cylindrical-bore intersecting the gas iports'prov vid'ed 'inisaidban'd, and a substantially cy-, "r h'out rheparting from the spirit of my in- "vention and I do not mean to limit the invention 'to such details except asjparticularly lindrical plug: provided with a series of transversely disposed. ducts 'in tlie walls thereof, {each adapted to formla continuous passage Wlhh 'S3,ld last mentioned .ports, and thus td-permit'th'e flow of 'gas 'from said barrel to said cylinder through one duct ;on1 "'whi1e the other ducts are completely "masked, with means for locking said plug at 'thefdesiredposition and for releasing I same when desired.

5. In a gasoperated' gun,the combination 'with' .a barrel provided with a"portforthe escape of :a port-ion of the powder ga'sfa cylinder fast to the gun, and a motor' piston "adapted to reciprocate in said icyli'nder, of e "a secured on said barrel "and provided with'a downwardly projecting portionhaving agasporttherein, registering with' s'aid "gas "po'r't' in the barrel and .alsoa gas'port opening into said cylinder, the said down- 'in'g also provided with a'transverse cylin- W ly Pr j ct n p i n. O a bandv 3 I the walls, thereof, both'orifices of each of 'I "whichducts 'debo'uch from the per'iphery'of thereof, each adapted to form a continuous passage with said last mentioned ports, and thus to permit the fioW of gas from said barrel to said cylinder, through one duct only while the other ducts are completely masked, andmeans for visually indicating the position of said passages relative to said ports.

6. In a gas operated gun the combination with a barrel provided with a port for the escape of a portion of the powder gas, a cylinder fast to the gun, and a motor piston adapted to reciprocate in said cylinder, of a band secured on said barrel and provided with adownwardly projecting portion having a gas port therein registering with said gas port in the barrel and also a gas port opening into said cylinder, the said downwardly projecting portion of said band being also provided with a transverse cylin drical bore intersecting the gas ports prowhen desired, and means for visually indieating the positionof said passages relative to said ports.

CHARLES SUTTER. v

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