US35996A - Improvement in magazine fire-arms - Google Patents

Description

UNTTEn-STATES PATENT OEETCE JAMES B. nooLITTLE', oEisEYMoUE, CONNECTICUT.

IMPROVEMENT IN MAGAZINE FIRE-ARMS.'

Specification forming part of Letters Patent No. 35,996, dated July 29,

To all whom tt mayV concern: Beit known that I, JAMEs B. DooLITTLE,

. of Seymour,in the county of New Haven and State oi' Connecticut, have invented a new and usefulv Improvement in Repeating Fire-Arms;

- and I do hereby declare that the following is y a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification,

lin whichi Figure 1 is a central'hlongitudinal vertical section-of 'a repeating -riiie with my improve- `inents, omitting all of the barrel that, is not necessary to illustrate the invention. Fig. 2

y .is a back view of the same. l

verse section of the stock in the plane indi- 'is a'transverse section of the same in the plane indicated' by the line x a: of Fig. l. Fig. 3 is a frontview of the rotating cylinder. Fig. fi

Fig. 5 is a transcated by the line y y, Fig. 1. Fig. 6 is a side view of the cylinder-yoke. Fig. 7 is a back view of the same. Fig. 8 is a front `view of the same.- Fig. V9 is a side view of the dog by which the rotation of the cylinder is effected. Fig. 10 is a front view of the same. l

Similar letters of reference indicate corre-- ,p spending parts in the several iigures.

. This invention consists, mainly, in a certain construction of and mode of operating a seriesot` chambers by which cartridges are re-` ceived from one or Inore magazines in the taches the barrel B to the stocx D, and which the'left of` Fig. l; which is taken looking in a forwarddirectiom) and has its other side closed by-a plate, A', which is screwed on after the contains the rotating cylinder and sliding Ayoke E. The general form of the frame A is substantially like that of iire-arms commonly .i constructed with the rotating many-chambered cylinder, except that, instead of being entirely open on both sides, it has a comparatively small opening, a, on the right side,'(shown at cylinder G and yokehave-been putin. The

.said frame is slotted vertically the whole :length of its interiory for the reception ofthe sliding yoke E, which works vertically right through the top and bottom of it.

`The yoke E has a quadrangular opening in a lateral direction, said opening being just long enough Vfrom back to front to receive the cylinder lengthwise within it without interfering with its own upward and downward movement in the frame A, or with the rotation of the cylinder, and its depth from top to bottom is sufficient to permit it to work up and down some distance independently of the cylinder.

The cylinder C is not chambered like that of an ordinary revolver, but only what may be termed half chamberedj?y having in its periphery a number et' semi-cylindrical cavities, c o, parallel with and at equal distances from its axis and at equaldistances from each other, each of these cavities constituting onehalf of a chamber from which thev charge is to be tired, and a semi cylindrical cavity, b, in the interior of the upper part of the yoke E being made to combine with either of the cavities c c, and with each in turn to form-the complete chamber, the yoke and the cylinder be- Y ing so fitted as to .be capable of forming gastight joints at the sides of the chambers. The cylinderhas simply a rotary motion on the iixed axis-pinv d, -which is secured in the trame A.

The yoke E has an upward and downward movement, the downward movementserving to bring the part b of the chambers into connection with the parts c c preparatory to firing, and the upward movement being for the removal of the part b to permit the cylinder to rotate, such upward movement being sutil cient to allow the discharged shells to cleathe upper part of the yoke that they may be conveyed by the rotation of the cylinder to f the opening', a, provided in the frame A for their discharge. In the front of the yoke there is a circular opening, b', corresponding with the bore of the barrel and concentric with the cavity b, and below this there is an elongated-'` intoxthe halfchambers@ o of the cylinder.

The said opening is also deep 'enough to permit the passage of the base pin through its upper part, and to permit the dog G, through which the rotation of the cylinder is effected, to work through its lower part. The upper 4part of the back of the yoke, in rear of and below the cavity b, constitutes the breech, and on the back surface of this partof the yoke v there isformed an inclinedplane, q,.to oper-v ate against a reversed inclined plane, fr, provided in the back part of the fra-me A, as

o ShOWDIi Fig: 1- BymeansnfwtheseinclinedY ,planes the yoke lis forced forward against the barrel as it is brought down upon the cylinder; The inclined plane r is made of a separate piece of lsteel slipped into a groove of -dovetail form provided in the back of the frame A for its reception. In the top part of the yoke, in the side farthest from the opening a in the frame, there is tted into a mortise,'12, a vertically.- sliding tooth, 13, which iscapable of entering the cavity b, and above this tooth there is provided on the top of the frame A a fixed tooth, 14, by which, when the yoke is moved upward to open a chamber, Vc b, thel said tooth 13 is prevented from rising all the i way withtheyoke, and so caused to press down the cartridge-shells which have been discharged, and detach them from the yoke in 'case of their sticking to it,`so that they'may be carried round by the cylinder to be thrown out at the opening a. When the yoke is brought down `again upon a cartridge in oneof the half-chambers o c, the tooth 13, on striking the cartridge,A has its further descent I stopped, while the yoke completes its descent;

Behind the cylindera small hook, l, is ar- -ranged to work in the opening a of the frame A, for the purpose'of tripping out the shells from the half -cliambersoo in case of vtheir having anytendency to stick therein.' This hook has a slight swinging movement from a.

pivot, l, which attaches it -tothe frame A, and is 'operated -by means of the yoke E, in the back ofwhose interior there is Aa' groove for thereceptionfof the said hook. "H is a lever,.by which the operations of the the horn fi being for the purpose of drawing d o'wn .fthedog Gr against the teeth k k on the back of the cylinder, and: thereby producing4 vthe rotation thereof, and the'horn j being for r the purpose of forcing up the said dog to ena ble it to-pass over the said teeth. The dog G is fitted to. slide vertically in a guide in the back ofthe frame A immediatelybehind the yoke, and lits upper part works through the opening in the back of the yoke on the right- .hand side of the axispin d. The upper porj tion of the said dogbelow the `tooth or hook 'l is elastic,jto enable said tooth or hook to spring back and pass over thev teeth kk in the upward movement of the dog. The lower part of the dog protrudes through the bottom ofz the frame A, and at its .lower extremity there is-'formed a tooth-like forward projection, n, for the horns ij to act upon to produce its operation. In frontof the` yoke there is secured a locking-pin, m, which' engages in a series of radiating notches, o o, in a cavity in the front ofthe cylinder4 for 'thepnrpose of locking the 'Y cylinder after any one of the half-chambers c c has been brought opposite to the chamber b .by the act of bringing down the yoke to complete the chamber.

The two magazines F provided in thestock are arranged on opposite sides of a plane pass. ing vertically and centrally through the stock and the axis-pin alc and with 'their mouths,

which are in the frame A, .below the axis-pin d, at a distance apart corresponding with thc distance between the half-chambers c c, b5

which arrangement, and by providing a proper number of half-chambers c o in the. cylinder,

there is always a half-chamber opposite each inagazinelwhenever a chamber is opposite to the barrel. The said magazines are filled with cartridges through -small -doors p p, provided on the sides of the stock, and the cartridges are fed forward within them and supplied to the cylinder by means vof a spiral spring, 1

anda follower, s, in each; and in orderto en# able the springs to be compressed and the followers to be drawn back beyond their respective doors p p, cords t are attached at one end to the followers and conducted round pulleys u c, arranged-within the back ofthe stock, and the other ends of the said cords are attached to a slide, w, working in a groove inthe 'under side of the-stock.' This slide has a knob, w,

'protruding through the groove to serve as a handle, and in the front portion of the groove there is on one side a notch, @02, for the reception of this knob. By drawing forward the knob w1 as far as the notch 102, the followers 8 are drawn back beyond the doors-p p, and by turning the said -knob aside into the said notch the slide w and the followers are secured whilethe magazines are filled, and after both have be'en filled the knob w1 is turned aside from the notch wi,`and the springs are allowed to press the cartridges forward toward the cylinder.

The rotation-of the cylinderis in such a direction indicated by an arrow in Fig. 2) that each ha f-chamber o-a'rrives rst opposite the magazine on the rightfhand side ofthe stock,

and then opposite that on the left-hand side, and hence while there are cartrid es in the right-hand magazine the half-cham ers c c, as they severally arrive opposite to that magazine, each receive a cartridge therefrom,and being occupied as they pass the left-hand magazine cannot. receive any therefrom; butI as after all the cartridges have been delivered from the right-hand -magazine the half-chaminder.

cylinder alsol brings Vbers arrive empty at the left-hand one, andI each receives a cartridge from theiatter. Thus it will be understood that first all ,the cartridges in the right-hand magazine and afterward all those lin the left-hand magazine are used. The cartridges are eoniinedin the half,- chambers c c as the latter move toward a position opposite the barrel by the circular form 0f the interior of the bottom of theframe A and of `the interior of the plate A.

The construction and movements of the several parts of the armI having now been described, I will proceed to describe as briey as I can the operations ot loading and Viiring, first remarking that the look, which is not represented in the drawing, may be of ordinaryconstruction. When the gun is in condition for firing, as shown in Figs. 1 and 2, the lever 'H lies back close under the stock, and its cam-like portion g is bearing against the bottom of the frame A in such a manner as to hold down the yoke tight upon the cyl- After iiring, the lever H is .pulled down Afrom the position'shown lin Fig. l by takin gl hold of the ring at its rear end, and its ,horn t is brought into contact with the foot n of the dog G, and as the dog cannot descend to produce the rotation of the cylinder before the latter is left free to rotate by raising the Y yoke, the said foot becomes the fulcrurn of the lever, which consequently raises the yoke as far as permitted by the frame A-viz., far enough to permit the rotating of the cylinder-f and when Vthe yoke can rise no further. the pin 71l becomes the fulcrum of the' lever, and thehorn t, by its pressure on the foot n, depresses the dog H and produces the rotation `ot the cylinder, thereby causing it to carry away from opposite the barrelv the cartridge-case which has just been discharged, and cause the said case to drop out laterally from the half-chamber c which has contained it, and through the opening a in the frame. The rotation of the the next half-chamber containing a cartridge opposite to the barrel and withi-n the yoke, and at the same time takes away from the magazine Athe half-chamberc, whichthas just received a cartridge therefrom, and brings another half-chamber by means of a lever, H,app1icd fulcrum veritable,A

Aapposite to the magazine for the reception of acartridge. By to the position shown'vin Fig. 1, the hornj is brought into contact with theV foot n; .ofthe dog Gr, and the said dog is thereby moved u'pward to a positionto engage with a new tooth,

' la, of the cylinder, andthe yoke is drawn down to bring its half-.chamber b into combination with the half-chamber c, which is opposite to the barrel, and everything is-in condition `for repeating the iire by drawing the trigger. In the operation of drawing down the yoke the bearing-point ofthe cam-like portion g of the lever becomes the fulcruin thereof, andhence it will be understood that the lever, in the several stages'of its operation, has three distinct fulcrums, the other two being the pin h and the foot n of the dog,

action of'- the hammer.

Whatv I claim as my invention, and desire -v to secure by Letters Patent, is-

1. The combination, in a re-arm,

manner substantially as herein described of a cylinder constructed with a series' oilhalichambers, c c, and the sliding yoke E, constructed'with a single half-chamber, b. 2. Combining vthe yoke E and the dog G, which produces the rotation of the cylinder, substantially` as herein specified, with itsl in the manner. set'forth. l,

3. The combination ot' the sliding tooth 13 inthe yoke a'nd the fixed tooth Mon the frame, substantially as and for the purpose -herein specified.v

4. The combination of the radial grooves or notches oo in the front end ,of .the cylinder and the pin m, working through the front of the yoke, substantially as herein described, for the purpose of locking the cylinder.

5. The hook l1, applied withinthe opening 'a of the frame A, in combination 'with' the cylinder C and operated bythe' T/tJlIo-Ii",y substantially as hereinspecied. '-I

` LI. B.v 'DOOLITTLE Witnesses: I l

H. O. MILES, Lo'rm FENN,

drawing up the lever again-V` asbefore described. The cooking may be edeected through the agency of the lever H, or by the independent in the

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