US669918A - Magazine-firearm. - Google Patents

Description

No. 669,9ls. kPatnteu mar. l2, |901. F. FonTELKA.

MAGAZINE FIBEARNI.

(Application led Aug. 16, 1900.)

2 Sheets-Sheet I (No Model.)

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No. 669,9ls'. Patented mar; l2, |901 1 F. rumeLKA.

MAGAZINE FIBEARM.

(Application led Aug. 16, 1900.) (No Modal.) 2 Sheets-Sheet 2..

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Nirnn STATES FRANZ FORTELKA, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR OF ONE- HALF TO VILIIELM LEITNER, OF SAME PLACE.

MAGAZINE-FIREARIVI.

SPECIFICATION forming part of Letters Patent No. 669,918, dated March 12, 1901.

Application iiled August 16, 1900. Serial No. 27,073. (No model.)

To all whom, t may concern,.-

Beit known that I, FRANZ FORTELKA, a citizen of the Empire of Austria-Hungary, residing at Vienna, in the Province of Lower Austria, in the Empire of Austria-Hungary, have invented certain new and useful Improvements in Magazine-Firearms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this speciiication.

This invention relates to magazine-firearms with sliding breech-bolt, and has for its object the construction of a mechanism for operating the breech-bolt in the opening as well as in the closing direction by a single continuous pull of the trigger, so that a number of shots may be fired in rapid succession by a repeated pulling of the trigger.

In the annexed drawings, Figures 1 to 4 show a iirearm constructed according to this invention in fonrconsecutive stages of movement of the mechanism. Figs. la, 2a, and lc are details.

In all gures similar letters of reference indicate corresponding parts.

As will be seen from Fig. l of the drawings, the breech-bolt ct is at one of its extremities (here at its rear) provided with two'lockingstuds b, which are guided in two longitudinal grooves d, Fig. 1, of the receiver and which at the end of the rectilinear closing movement of the breech-bolt may enter into a transverse locking-groove c.

The two-armed leverml 'n for operating the breech-bolt is pivoted at .fr and receives its movement for opening and closing the breechbolt from the trigger-arm p, which for this purpose alternately acts upon the upper arm m and the lower arm n of this lever. The lever m n is connected with the breech-bolt by the end of its Lipper arm mengaging with a slide h, which is guided in the receiver underneath the breech-bolt and which is at its upper side provided with a stud g, that engages into a short helical groovefof the breechbolt.

The trigger-lever p operates upon the lever m n in one direction by means of an intermediate arm k, pivoted to the arm mof thelever m n and kept in the position shown in Fig. l by a springj. When the breech-bolt is closed and the trigger at rest,this intermediate arm lo rests with its lower free end upon the trigger-arm p, but slides off from the end of this arm when the trigger has been pulled back so far as to bring the breech-bolt into its open position. The movement of the lever m 'n in its other direction for closing the breech-bolt is effected by the lower arm q of the trigger, which when the breech-bolt has reached its open position comes into contact with the lower arm n of the lever 'm n and swings it in the opposite direction, whereby the closing of the breech-bolt is caused.

For the coc-king of the hammer, which is also done by the triggerp q, the trigger-arm p is provided with aslidingpin'u, moving ina direction ata right angle to the plane of movement of the trigger. This pin u is attached to and pressed inward by a spring w, as shown in Fig. la, section A Bof Fig. l, and engages into a suitably-shaped slot t of the hammer s. The part u on one side of the slott of the hammer s has the form ofa wedge or incline, as shown in Fig. 2a, section CD of Fig. l, so that the spring-operated pin o at a certain stage of movement may slide over this inclined surface of the hammer part u until it again drops into the aforesaid slot t.

The breech-bolt d is in the ordinary manner provided with a firing-pin r, against the projecting rear end of which the hammer strikes when it is released by the trigger.

The mechanism operates in the following manner, Fig. l showing the parts at rest: IfY

piece h to proceed in the helical groovefof v the brecchbolt, which is thereby slightly turned, so as to bring the locking-studs b from their locking-recess c in line with the longitudinal grooves dof the receiver. Now

the stud g has reached the end of the groove f, and the rearward movement of the lever- IOO its spring y, the end of the trigger-arm p this lever in the opposite direction effects the closing movement of the breech-bolt, the trigger being always pulled in the same direc-Y tion. The breech-bolt being free to move longitudinally, the first result of the closing movement is to move the bolt without turning until the studs enter and reach the inner ends of the grooves d, where the longitudinal movement will cease, and the further movement of the stud g in the helical groove f will turn the breech-bolt and again engage the studs b in their locking-recess c. In its forward closing movement the breech-bolt takes a fresh cartridge from the magazine and introduces it into the chamber of the barrel. After the breech-bolt has arrived at the end of its rectilinear way the stud g, which still continues its movement in the helical groove f, will cause the breech-bolt to turn, with its locking-studs b, into the locking-recess c, as shown in Fig. 3. During the described movement of the trigger the pin i; of the trigger-arm p has at first remained and moved in the slot t of the hammer, bringing it into its cocked position, as shown in Fig. 3, and has then left the slot t and slid upward along the inclined edge of the part u of the hammer, thereby keeping it cocked. Immediately after the breech-bolt has finished its locking movement the pin u arrives at the end of the inclined edge o and slips off, releasing the hammer, which is now driven forward by its spring z and strikes the end of the firingpin r. As the trigger when released now swings forward again under the influence of depresses the yielding arm k until it stands again underneath it, as in Fig. 1. At the same time the pin fu sli-des over the inclined surface of the part u of the hammer and dropping under the tension of its spring LU into the slot again also takes up its original position.

Instead of a hammer being employed, as

eeael shown, the iring-pin may be provided in the well-known manner withacoiledfiring-spring, and the ringpin may be arrested and released.by a scar operated by the trigger or by any of the other devices known 'for thispur'- ose.v p Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In firearms, the combination with a trigger and a sliding breech-bolt, of a two-arm lever, connections between its upper arm and. the breech-bolt, an arm pivoted to the upper arm of said lever, and a spring between the pivoted arm and the arm of the lever for normally holding the pivoted arm in the path of movement of the trigger at the beginning of the backward pull thereon, the vlower arm of the two-armed lever lying in the path of movement of the trigger during the latter part of the backward movement of the trigger, substantially as described.

2. In firearms of the kind described the combination with the sliding breech-bolt, of a two-armed lever m, n; a spring-adjusted iutermediate arm 7c pivoted to the arm m of the lever mnt; a trigger p, q adapted to operate alternately upon the arm 7a, and the arm fn of the lever m, n; and the slide h in engagement with the arm m and having a stud g engaging into a helical groove fof the breechbolt; substantially as described.

3. In firearms of the kind described the combination with the sliding breech-bolt, of a two-armed levermnft; a spring-adj usted in termediate arm 7c pivoted to the arm m of the lever fm, n; the trigger p; q adapted to operate alternately upon the arm 7c, and the arm n of the lever m, n; a hammer s having a slot t, a wedge-shaped part u and an inclined edge o; and a spring-adjusted pin o adapted to engage in to the slot slide along the edge o and return over the incline of the part u into the slot t of the hammer s; substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

FRANZ FORTELKA.

Witnesses:

FRIEDRICH BINDER, ALvEs'ro S. HoeUE.

IOO

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