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RECOIL OPBRATED GUN.

Patented Mar. 2s, 1897.>

No. 579,401.

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(No Model.)

11 Sheets-Sheet 2.

H. S. MAXIM. REGOIL OPERATBD GUN.

No. 579,401.

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Patented Mar. 23, 1,897.

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(No Model.)

11 Sheets-Sheet 3.

H. S. MAXIM. REGOIL OPERATED'GUN.

No. 579,401.

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Patented Mar. 23, 1897.

(No Model.)

H. S. MAXIM.

11 Sheets-Sheet‘ 4.

REGOIL OPBRATED GUN.

No. 579,401

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Patented Mar. 23, 1897. y

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11 Sheets-Sheet’ä. y

H. S. MAXIM. REUOIL OPERATBD GUN»,

No. 579,401.

'Patented Mar. 23, 1897.

,Hiram lSf/ïßm'fm, fzwerziar

(No Model.)

11 Sheets-Sheet 6.

H. S. MAXIM.

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RBGOIL OPERATED'GUN.

No.> 579,401.

Patented Mar. 23, 1897.

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11 sheets-sheet 5. H. S. MAXIM. REGOIL OPBRATED GUN.

No. 579,401.

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Patented Mar. 23, 1897.

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(No Model.)

11 Sheets-Sheet 9.

H. S. MAXIM. REGOIL OPBRATED GUN.

No. 579,401..

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Patented Mar. 23, 1897.

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(No Model.)

' H. S. MAXIM.

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11 Sheets-Sheet 11. '

REGUIL OPERATED GUN.

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No. 579,401.

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UNiTED'- STATES PATENT OFFICE. IIIRAM STEVENS MAXIM, OF LONDON, ENGLAND.

Rl-:colL-o'PERATED GUN. - SPECIFICATION forming part of Letters Patent No. 579,401, dat-ed -March 23, 1897. Application ñled .T_annary 22, 1896. Serial No. 576,436.' (No model.) Patented in France December 17, 1895, No. 252,554; in Belgium December 18, 1895, 110.118.922; in Switzerland December- 18, 1895, No. 11,655; in Italy December 21,1895, LXXIX, 176 ; in Brazil February 4. 1896, No. 2,093; in Canada February 18, 1396l No. 51,386; in Austria March 26,1896, No. 46/1,151, and in Argentine Republic April 10, 1896, No.1,78Ó-

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connected therewith in a íirin g position; Fig. 50 Be it known that I, IIIRAM STEVENS MAXIM, 3, a similar view showing the parts in a re

To all _whom it may concern:

mechanical engineer, a citizen of the United coiled position; Figs. 4. and 5, ~sectional ele- v

States of America, residing at 18 Queen’s Gate vations similar to Figs. 2 and 3, but showing Ul Place, London, England, have invented cer a modified construction; and Figs. 6 and'7, a tain new and u-seful Improvements in Allto inatic Guns, of which the followingis a speci, ñcation, reference being had t0 the accom

panying drawings.

longitudinal section and rear end'view of a .55

detail hereinafter more fully referred to.. Figs'. 8 to lö‘illustrate the muzzle device pro vided with means for admittinga quantity of

lI have obtained patents for this invention in water thereto each’time the barrel reeoils, > Fig. 8 being a longitudinal section with the gun-barrel in its forward position ; Fig. 9,- a -similar view wit-h the gun-barrel‘in its re

the following countries: France, No. 252,554, dated December 17, 1895; Belgium, No. 118,922, dated December 18, 1895; Austria, No. Liti/1,151, dated March 26,1896; Italy, No. LXXIX, 176, dated December 21, 1895; Switzerland, No. 11,655, dated December 18, 1895; Argentine Republic, No. 1,780, dated

coiled position; Fig. 10, another longitudinal section showing a modification; Fig. 11, a transverse section of the gu n-barrel employed in this modiñcation.

Figs. 12 and 13 are

April 10, 1896; Canada, No. 51,386, dated similar views to Figs. 10 and 11, but show February 18, 1896, and Brazil, No. 2,003,dated another modiñcation; and Figs. 14 and 15 are February 4, 1896.

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also similar views to Figs. l0 and 11, but show

This invention relates to automatic or a still further modification. Figs. 16 to 21 “Maxim ” guns, and has for one of its objects illustrate the improved means or devices for to devise improved means for actuating the controlling the speed of firing the gufi. ‘ In cartridge-carrier whereby the latter is caused these iigures Fig. 16 isa side elevation of the .

25 to entirely complete its upward movement rear portion of the gun, showing one of the before the breech block or lock terminates its

said devices applied thereto, and Figs. 17, 18,

forward movement in closing the breech.>

lf), and' 20 are central vertical sections of this

Another object of my present invention is device in different positions. Fig. 21 is a to so construct the muzzle device employed 30 for increasing the energy of the recoil move

front elevation, and Fig. 22 a central vertical Y _

section, of a modiiied construction of the de

vice. Fig. 23 is a front elevation, partly in section, and Fig. 2_4. a vertical section," of a to enter the gas-chamber of the aforesaid further modified construction of. the device.

ment of the gun-barrel that a quantity of Wa ter can at each recoil of the barrel be caused

I will first refer to that part of my inven- f m uzzle device and the passages com municat~_ 35 ing therewith for the purpose of preventing tion relating to the means for actuating the ` ' the corrosion or incrustation of. these parts cartridge-carrier. by the gases of discharge, and also for pre In automatic or Maxim guns as at present venting the muzzle of the barrel and the muz constructed there~is on the forward end of zle device from becoming overheated. the breech block orlock a cartridge-carrier A still further object of this invention is to or sliding piece‘which acts to simultaneously ' devise improved means for controlling the withdraw the empty cartridge-case from the 90 barrel and a fresh or loaded cartridge froln speed of firing the gun. In the accompanying drawings, Figures 1 the belt, then toy lower the saidcartridge and

to 7 illustrate the improved means for actu 45 ating the cartridge-carrier, Fig. 1 being a lon gitudinal section of the breech mechanism of a gun provided with my improved cartridge` carrier; Fig. 2, a detached sectional elevation showing the breech block or lock and parts

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cartridge-case, then to thrust tlíe fresh car- -

tridge into the barrel and the empty car

tridge-case out through the ejecting-orifìce, 95

andl then, finally, to engage with another car tridge in the belt ready to repeatv its cycle of Y

operations upon the next discharge' of the gun.

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579,40 1

The said carrier thus has four movements viz., a backward movement with the lock, a downward sliding movement on the lock, a

instant that the carrier reaches its highest po sition. This construction necessitates a very fine adj ust-ment of the parts, and it is found

that when slightly worn the parts get ont of an upward sliding movement on the lock. In adjustment and do not properly operate; but order that the last of these four movements with my present improvements, whereby the

forward movement with the lock, and, lastly,

IO

may be properly performed, it is necessary to prevent undue pressure between the face of the carrier and the base of the cartridge. Otherwise the carrier would bind against the

cartridge. Consequently the space usually left between the face of the carrier and the end of the gun-barrel when the carrier is in its most forward position is slightly in eX cess of the thickness of the flange or rim of

carrier first completes its vertical movement and then the crank-handle travels through an appreciable angle to press the carrier against the base of the cart-ridge, such veryv fine ad justment of the parts is unnecessary and the di?'iculty above indicated is avoided. More over, the present improvements obviat-e the inconvenience sometimes heretofore caused by the rebounding of the carrier after it has

the cartridge. It follows, therefore, that when been fully raised, thus bringing the firing-pin

the breech is closed the cartridge is not firmly hole in the carrier a little below the center of supported. This evil is aggravated when the primer. In such cases the action of the S5 modern smokeless powders are used, for in firing-pin is interfered with and the said pin such instances the primers have to be made is sometimes broken. The spring that is generally attached to one sufficiently thick to resist an enormous pres sure, and therefore a very strong blow of the of the inside plates of the gun and that en firing-pin is required to make them detonate. gages with a notch in the carrier and holds it The force of this blow not only pushes the in its uppermost position at the instant of lock back, but also pushes the cartridge for firing may be dispensed with. Referring to Figs. l to 7 of the accompany ward or away from the face of the carrier, and any lost motion in the parts or any allowance ing drawings, A is the frame inclosing the made for thick or dirty cartridges serves to breech mechanism. B is the barrel. C is the increase the distance between the face of the

breech-block or lock-body.

D is the crank

shaft. D' is the crank. D2 is the crank-pinè when the gun is tired the cartridge recoils E is-thc‘connecting-rod coupling the crank to through such distance, and this movement, th'e lock. E’ is the pin connecting the rod E together with that arising from the elasticity to the lock. F is the cartridge-carrier mounted of the side plates, the crank, and the connec 'with a capability of sliding up and down on forward end of the lock-body. G is one 55 tions, will be suñicient in many cases, when the the metal of the cartridge is not of the very of the side levers for raising and lowering best quality, to break the cartridge into two the cartridge-carrier; The said lever is piv pieces, one of which remains in the cartridge oted to the lock-body at G'. F' F’ are lugs chamber and thereby stops the firing. In or on the side of the cartridge-carrier, between 4.o der to obviate this difficulty, I have accord which the forward end of the lever G Works.

30 carrier. and the base of the cartridge, so that

ing to my present invention devised means II is an arm or finger forming part of the con whereby the cartridge carrier or slide is necting-rod and adapted to operate the lever caused to perform five functions instead of G. There is one such arm II and one -such four-,as heretofore-that is to say, it acts, first, lever G on.each side of the lock. J is the fir ing-pin. K is the tumbler. L is the hand 45 to draw a cartridge from the belt; second, to sear. M is the safety-scar. Except as here lower it into position for loading; third, to 'thrust it into the barrel; fourth, to rise and inafter described all of the aforesaid parts seize a new cartridge, and, fifth, to close firmly are constructed and operate as heretofore. Referring now to Figs. 2 and 3, the lever G against the base of the cartridge in the car constructed with a Workin g face g, (against 50 tridge-chamber. The energy possessed by the is as far and the end of the arm H during the last as it is required to go the end_of the lever G ` stage of the forward movement of the _lock escapes from the lower face of the upper lug [OO slides over the curved face g' of the lever G, F' and slides onto the curved face f, and „it 35 which face by bearing against the end of the then ceases to lift the carrier, although the arm II serves to firmly support the carrier F lever continues to move during theliinal clos in its raised position. It is during this final ing movement of the lock. In. this position stage of the movement of the lock after the of the lockthe lever acts as a strutto sup-_ carrier F has risen to its highest position that 'port the carrier very iirmly in its raised p0 the connecting-rod E operates to raise the sition. During the recoil movement of the

safety-scar M, thereby enabling the gun to be

lockthe arm H strikes a projection G2 on the `

ñred by the pressing of the button, which op

lever G and turns ¿the said. leveruntil its for- = _ ' ‘

ward end again passes 'between the >lugs F’. IIO Moreover, during lthis iinal stage of the move F', whereupon the carrier F can descend in of the lock the face of the car-rier'F is accordance-with therequirements of the Work- l 4.5 ment v - v . pressed tightly against the base of the car ing of the gun. tridge and the end of the barrel by the toggle ~ In both of the above-described devices it like action ofthe crank D’ and connecting will be seen that the last portion of the'travel H H. Ul erates the hand-scar L in the usual manner.

In order to regulate this action as of the toggle-jointformed by the crank and may be required ,I provide for varyin g slightly connecting-rod (i. e.,when_ it is assuming the

rod E. 50

the length of the connecting-rod as .followsz The rear end of that part of thel said rod shown in Figs. 6 and 7 is made tubular and is furnished with inwardly-projecting lugs e,

position in which the greatest purchase for

eñect upon'the breech-block_is obtained) is utilizedfor closing the breech and not for

120

.raising the carrier. Moreover, it is ilnpossi- '~ 55 equally spaced, as shown in Fig. l'7, and ble for the carrier after being raised 'to its adapted to engagewith similar equally-spaced` ' hi ghest‘J point to descend until released by the lugs e', Fig. 2, on the stem e2 ofthe other recoil _movement of the connecting-rod, lthus part of the connecting-rod, which stem enters . the tubular part and is enlarged at its real'. ,

preventing any damageto _the 'firing-pin.

' v_ 4..1 25

By thé presentimprovements itlwill be seen, '

moreover, that all of the parts that actto _hold pin D2 is passed. By sliding the tubular part' the cartridge in the barrel Iat the instant çof of the connecting-rod over the stem e2, so that Atiring are put into >the bestpesition' for offer the lugs e pass through the spaces between the ing. the ygreatest resistance to the, stress'vdue _. , .

end to form au eye through which 4the crank

15°'

> lugs e’ on the stem e2, and then by turning to discharge~ before the vcartridge is struck by the firing-pin. „These improvements are ap 65 the tubular part of the connecting-rod through plicable to guns wherein the energy for work a fraction of a revolution ,` so that the lugs e pass behind the lugs e', the said tubular part ing the lparts is derived from the recoil of the '

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579,401

barrel or from the recoil of the barrel assisted in such a position that at each forward stroke by the pressure of the escaping gases acting of the crank-arm a projection on the latter on a piston arranged near the muzzle of the will engage with the said catch, whereby the 70 crank-arm will be temporarily restrained gun or from such pressure alone. I will now describe the means for enabling from performing its rearward stroke until the water to be admitted to the muzzle device catch is automatically disengaged from the each time the gun-barrel reeoils, reference aforesaidV projection on the crank-arm. The being had to Figs. 8 to 15. In these figures duration of this restraint may be for only a a is the casin g of the water-jacket, B the gun short interval of time or for a comparatively barrel, and b the gas-chamber, surrounding long period, depending on the means em the muzzle of the barrel. The barrel is en ployed with the said catch for its release. In larged at B' and has transverse apertures B4 the drawings I have shown various means immediately in front of the shoulder lëi‘, pro for eífectin g the disengagement of the catch duced by the enlarged portion B’. Through after the lapse of certain intervals of time, these apertures the gases of discharge escape but I wish it to be understood that I do not from the barrel and enter the space b' in the confine myself to these specific means. ' Referring first to Figs. 16 to 20, fn, lis the gas-chamber b, thereby forcing back the bar rel and finally escaping through the opening catch, pivoted by a pin nx to lugs on the side 85 bx in the gas-chamber b, when the barrel re plate A of the frame of the gun. The catch coils suiiiciently to bring its nose B2 fully is provided with a head n', having a shoulder within the said gas-chamber, as is well under n2, and is also provided with a flange or finger stood. In Figs. 8 and 9 the aforesaid en n3, projecting from its face. n4 is a pendent larged portion B’ of the barrel is formed with arm extending from the catch and having an 90 an external semispiral passage B5, which com enlarged or weighted outer end. O is the

25 municates at its forward end with an annular

space b2 Within the gas-chamber b. When the barrel recoils into the position indicated in Fig. 9, the rearward end of the aforesaid passage B5 is’open to the water within the 30 casing a. This passage therefore becomes iilled with Water, and on the barrel regaining

crank-arm, and 0’ the projection thereon, which during the forward rotary stroke of the crank-arm acts in conjunction with the aforesaid catch to delay the speed of firing 95 the gun. `n5 is a spring which tends to keep the pendent“ arm n4 pressed outward or away from the side plate A, so that it normally oc

its firing position, Fig. 8, the water within cupies the position shown by Fig. 17. When the- crank-arm is thrown forward during the

the said passage enters the annular space b2.

At the next recoil movement of the barrel the 35 shoulder B3 uncovers this annular space b2 and allows the water contained therein to flow into the gas-chamber b. The water accu

firing of the gun, the projection O’ passes the head fn.’ of the catch and forcibly strikes the

45 ted lines in Fig. 10, thereby putting the said

overcome the momentum of the weighted arm

IOD

{ian-ge or finger n“, thereby turning the catch

about its pivot into the position shown at mulating in the gas-chamber escapes through Fig. 1S, the pendent arm turning inward 105 against the pressure of the spring n“, The the front opening bx. In the modified arrangement shown at Figs. return stroke of the crank-arm will now be 10 and 11 the enlarged portion B' of the temporarily prevented by reason of the pro barrel is provided with longitudinal taper jection O' coming against the shoulder n2, ing passages B6. When the barrel reeoils, Fig. 19, and the parts will remain in this po 110 it assumes the position indicated by the dot sition until the elasticity of the spring a5 has

tapered passages B‘i into communication with n4 and returned it and the catch to the posi the water in the casing a. The water then tion represented in Fig. 20. The crank-arm is then immediately liberated and permitted ñows directly into the gas-chamber b. In Figs. 12 and 13 I accomplish the same to perform its return stroke underthe action

50 result by forming the enlarged portion B' of of thel ordinary fusee-spring. By varying the barrel with a eonically-shaped forward theweight of the pendent arm or by provid end, and in Figs. 14 and 15 I form the en ing it with an adjustable sliding weight the

larged portion B’ with alongitudinal passage time required to enable the aforesaid spring

120

to react and return the weighted arm to its normal position may be increased or dimin employ for controlling the speed of firing the ished; but in any case, according to this con struction of the device, the periods of retarda gun. As is well known, the rapidity of fire of a tion are of comparatively short duration. 125 In Figs. 21 and 22 I have shown the catch Maxim gun is usually very high, and it is considered desirable in some instances to di provided with an adjustable device which minish such rapidity. For this purpose the enables the periods of retardation to be con or conduit B7. I will now describe the improved means I

buÈer-spring usually employed for causing sidêrably prolonged beyond those obtainable the crank handle or arm to instantly rebound

65

with' the, preceding arrangement. In this 130

and return to its firing position after each construction instead of providing the catch discharge is dispensed with, and in place with a weighted arm thel ñange or fingern3 thereof I employ a device consisting of a catch, is connected to a vpiston-rod p by a link p’. which is pivoted to the side plate of the gun The piston-rod has a piston p2, which works

579,401

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in a cylinder P, formed with two internal end a crown or escape wheel q“, forming part v diameters. This cylinder is supportedfrom of a verge-escapement. Q7 is the verge, and the frame A of the gun by a socket or1 clip qx3 the- pallets thereon, which engage with the 70 p10, which is screw-threaded on its interior in teeth of the escape-wheel during the revolu correspondence with exterior screw-‘threads t-ion of the latter and control its‘ speed, .as is formed on the lower portion P2 of the cylin well understood.y The aforesaid toothed wheel der. By revolving the cylinder it can be vq’ carries a spring-pawl Q9, which gears with caused to move np or down in the socket or

clip independently of the piston and piston IO

a ratchet-wheel Q10, keyed to the spindle q2. 75

The ratchet-wheel (110 is so arranged that when

rod, and in this way the position of the pis the rack q descends under vthe force of the ton relatively to the' two internal diameters `blow struck on the flange or finger ns by the of the cylinder can be readily adj usted. The projection on the crank-arm the said rack piston is provided with ports p3, whose upper revolves the wheel q’ >in a direction to cause ends are normally covered by a disk-valve the pawl to run freelyvover the teeth of the

p4, controlled by a'spiral spring p5, which is ratchet-wheel without turning the spindle q2, situated between the said disk Pfand a col lar p6 on the piston-rod. The cylinder con

but in the ascent of the said rack and the

consequent revolution of tlie‘wheel q’,"with tains water or other fluid. ns is a _spring its pawl, in the opposite direction the spindle 85, which tends to keep the catch -in its disen q2 is revolved by the pawl and ratchet-wheel. gaged position. ÑVhen the flange or finger The rotation of this. spindle is, however, im n3 of the catch is struck by the projection O’ peded by the escapement,-and thefrelease of during the forward stroke of the crank-arm, the cran k-arm by the catch is accordingly re the piston descends in the cylinder P with tarded. Q is a 'casing inclosin'g the mechan out meeting with any undue resistance, the ism, and Q' a spring which acts upon the

95

25 iluid on the under side of the piston readily catch and tends to _restore it to its disengaged i

escaping to the upper side thereof by passing through the ports p3 and raising the disk-'

position. I claim»-

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valve p4. The return movement of the catch 1.> In an automatic gun, the combination’ 95, is, however, impeded by reason of the fluid -with a reciprocating breech mechanism, of a 30 above the piston being unable to pass back 'cartridge-carrier, and intermediate mechan-' through the ports p3 to reach the under side of ical connections which raise the carrier to its

the piston when the latter attempts to rise, the highest position before the completion of the' ' only course open to the ñuid being through a forward movement of the breech mechanism, ` duct p7 or between the circumference of the as set forth. 35 piston and the inner surface of the cylinder. r 2. In an .automatic gun, the combination The disengagement of the crank-'arm i's thus with a reciprocating lock and a crank-_shaft

ICO

retarded un til sufficient iiuid has passed from and connecting-rod for imparting movement

the upper to the under side of the piston to thereto, `of a cartridge-carrier sliding trans 105 permit the shoulder a2 on the catch to move out versely- on the lock, connections between the of the way of the projection on the crank-arm. said carrier `and the mechanism for impart- "

By revolving the cylinder P the larger inte rior diameter thereof can, as already‘stated, .be brought nearer to or farther from the pis ton, so that during the ascent of the said pis 45 t0n a longer or shorter space of time will

elapse before .it enters the larger diameter,

and therefore before the fluid' can find a more

ready escape from the upper to the lower side

ing movementto `the lock adapted »to move the carrier in correspondence with the move- ‘Y ment'of> the lock and to raise the carrier to IIO

its highestposition before the termination of the forward movement of the lock, as set forth._

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3. In an automatic gun, Lthe combination Í with a reciprocating lock,a crank-shaft, crank - 115

of the piston by flowing through the annular and connecting-rod imparting movement to

50 space between the piston and the larger ‘di the lock, of a cartridge-carrier sliding trans ameter of the cylinder. P3 _is a set-screw versely on the lock, levers engaging with and

having a milled head for enabling the clip p10 controlling the transverse movement-_of the to tightly retain the cylinder in its adj usted carrier, arms secured to the connecting-'rod position. By only partially íillin g the cylin and- engaging with said- levers, the said levers 55 der with Water this device can be used for and arms being so formed as to raise the car giving comparatively slight retardation to rier ‘to its highest position before the lock has the crank-arm. completed its-forward movement, and to sup In Figs. 23 and 24 I have illustrated a fur port,- the carri-er in such position, as herein . ther modified construction of the adjustable set' forth.

65

4. In an automatic gun, the combination device for enabling the periods of retardation to be prolonged. In this case` the catch is With the lock, and with the crank-shaft crank pivotally connected to a vertically-moving ‘and connecting-rod for actuating the lock, of rack q, which ' gears with a toothed wheel q', a cartridge-carrier arranged to slide trans mounted loosely on a spindle q2. This spin versely on-the lock, levers for con trolling the ‘ dle also carries another toothed wheel qs, movements of the cartridge-carrier, arms se which is keyed thereon and gears witha pin cured to the connecting-rod for operating the‘ ion q“, carried by a spindle g5, having at one said levers, and inclined faces g’ formed on*y

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579,401

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the levers G which faces bear against the ends of the arms that operate the levers and serve

to support the cartridge-carrier in its raised position without moving said carrier during the final stage of the forward movement of the lock, substantially as described. 5. In an automatic gun, the combination

IO

9. In an automatic gun, the combination 50 with the barrel of a chamber into which a por

tion of gases of discharge issue, said chamber having two parts movable with respect to each other by the force of such gases and operat ing when so moved to actuate the breech 55 mechanism, a water-chamber and a passage

with the lock, and the crank-shaft and crank, of communication between the Water-cham of a connecting-rod coupling the crank to the ber and the gas-chamber, controlled by the lock, the length of the said connecting-rod movement of a part of said chamber, as set

being adjustable, for the purpose specified.

forth.

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6. In an automatic gun, the combination

lO. In an automatic gun the construction of

30 formed on the tubular part and stern respec

l2. In an automatic gun, the combination with a projection 0’ on the crank-arm, of a

nut and a shoulder e“ on the connecting-rod

a spring-controlled and weighted pendent

With the lock, the crank and the crank-shaft, the gun-barrel with an external groove orpas of a connecting-rod coupling the crank to the sage near the muzzle, the said groove or pas sage being so arranged that when the barrel is lock, said connecting-rod being madev intwo in its fired position the fore end of the groove parts one furnished with a stem e2 and the other made tubular to embrace the said stem or passage opens into the gas-chamber of the and be locked thereon by :neans of lugs e, e' muzzle device, and when the barrel is in its formed on the tubular part and stem respec recoiled _position the rear end of the said tively, and a nut e4 for adjusting the length groove or passage opens into the water-jacket 70 of the connecting-rod, substantially as de substantially as described. 11. In an automatic gun, the combination scribed. ` '7. In an automatic gun, the combination with the pivoted catch on the side plate or of the gun and the projection on the with the lock, the crank and the crank-shaft, frame Crankarm, of a fin ger against Which the afore of a connecting-mdcoupling the crank to the 25 lock, said connecting-rod being made in two said projection strikes as the crank-arm per 75 parts one furnished with a stem e2 and the forms its forward movement, and a device for other made tubular to embrace the said stem temporarily restraining the catch from releas and be locked thereon by means of lugs e, e' ing the crank-arm, substantially as described.

tively, a nut e4 for adj listing the length of the connecting-rod, and a washer e5 between the pivoted catch n on the gun-frame, and having to receive the thrust, substantially as de

35 scribed.

8. In an automatic gun, the combination with the lock, crank, and crank-shaft, of a connecting-rod coupling the crank to the lock the length of which rod is adjustable by

arm, substantially as described. ' ' 13. In an automat-ic gun the devices for con

trolling the speed of tiring the gun, consist ing of a pivoted catch carried by the side plate or frame of the gun, a projection on the

crank-arm adapted to engage with the said

means of a nut, a cartridge-carrier arranged ' catch at each forward stroke of the crank

arm, and means for temporarily restraining 90 trollable by levers pivoted to the sides of the the catch from releasing the crank-arm, sub lock, arms secured to the connecting-rod for stantially as described. In testimony whereof I have hereunto set operating said levers, means for stopping the my hand this 29th day o'f November, 1895. lifting movement of the carrier before the ter 45 , IIIRAM STEVENS MAXIM. mination of the forward movement of the Witnesses: lock, and means for firmly supportin g the ear JOSE-PH LAKE, rier in its raised position, substantially as de ARTHUR A. BERGIN. scribed. to slide up and down on the lock and con