US 2138213 A
Description (OCR text may contain errors)
Nov. 29, 1938. A, sElDEL FIRE ARM Filed Aug. 20, 1935 4 Sheets-Sheet 1 til: I
Nov. 29, 1938. A. SElDEL 2,138,213
FIRE ARM 4 Sheets-Sheet 2 Filed Aug. 20, 1935 Iwvennr: AZcX JeZcZeZ Patented Nov. 29, 1938 UNITED STATES FIREARM Alex Seidel,
assignor on-the-Neckar, pany of Germany Oberndorf- Application Au I Claims.
My invention relates to fire arms, and particularly to automatic pistols with hammer and trigger.. The object prove the trigger mechanism, and to provide suitable safety devices for the trigger and firing mechanisms.
The improved trigger mechanism according to my invention is so designed that it is assembled and inserted in the arm, and removed from the arm, and disassembled simply, rapidly and without any extra tools and fastening members such as screws and the like.
It is still another obje ct of my invention to provide an improved magazine lock which, known per se cooperates with the push rod for the hammer. This is effected by combining the push rod, the cocking spring and the magazine look into a unit, insertion and removal of which are facilitated, and which cannot be inserted in a wrong position.
The invention will n trated.
In the drawings Fig. l is a section of the stock of a pistol 'showing its trigger mechanism in elevation,
Fig. 2 is a section on the line A-B viewed in the direction of the arrows,
Fig. 3 is an elevation of a connecting rod between the trigger, or its pawl, and the hammer, of a pistol.
Fig.4 is a plan view of the connecting rod,
Fig. 5 is an axial section of a pistol equipped with the connecting rod illustrated in Figs. 3 and 4, with its hammer uncooked,
Fig. 6 is a section which is similar to the section in Fig. 5 but shows the hammer after it has been cocked by pulling the trigger, and is just abgut to become disengaged from-the connecting ro v V Fig. '7 is a longitudinal section of a pistol showing the safety means by which firing by a blow or the like on the hammer is prevented, the parts being shown in safety position, and
Fig. 8 shows the parts illustrated in Fig. '7 in ow be described and illusin Fig. 1,
objects of my inde a trigger mechanism which is simple and does not require auxiliary tools and extra fastening means for assembling and insert- 50 ing, and for disassembling and removing it. The problem is to combine the parts of the trigger mechanism into a self-contained u t which is easily inserted and removed. designed and arrang 55 sembled by other deta ed that the unit is held asthe arm. in
durable parts of to Mauser-Werke Germany. a
gust 20, 1935, Germany August 10, 1934 f my invention is to im- The parts are so I on-tlie-Neckar, Germany,
A.-G., Oberndorijoint-stock com- Serial No. 37,078
an automatic pistol, this is effected by the stock and the breech, or by the stock and the barrel.
This problem is solved according to the invention by placing the trigger mechanism in a frame which is inserted in a suitable so that, when the pistol or other arm is closed, the parts of the mechanism are held against displacement from their positions. Referring now to the drawings, and first to Figs. 1 and 2, the stock I of a pistol has a recess 2 10 which is exposed at its top by removing the barrel 3. A frame 4 is inserted in the recess 2. The frame has two side plates 5 connected by a transverse member 6 at their front ends which bear against the inner walls of the recess at 1. Each 15 side plate 5 has a downwardly projecting lug whose ends 8 and 9 engage corresponding faces l0 and H of the recess in the stock. By this means, the frame 4 is held against displacement in axial and transverse direction. The lower faces of the 20 side plates 5 are supported by the bottom plate l2 of the recess.
The frame 4 is inserted from the top, after the barrel and the breech have been removed. One of the side plates 5 (at the left in Fig. 2) is higher 25 than the other, and its top 13 engages below the el 3, so that the frame 4 is held against Vertical the breech, or any other part be used for holding the frame 4 in the stock.
The frame 4 is open at its rear end, opposite the transverse member 6. A trigger M v and the trigger spring l5 are inserted from the rear between the si and the trigger pin it is inserted through suitable bores in the trigger I4 and the lugs l1 by which the side plates are anchored at l0 and H, as described. The trigger of the arm might spring I5 has a coiled central portion through which the trigger pin 16 is threaded. The ends of the trigger pin are flush with the outer faces of the side plates 5 and, since the pin any projections, it is not held against axial placement before the frame is inserted in the recess 2, and the pin is restrained by the inner faces 1 of the recess, as shown in Fig. 2.
The trigger l4 perfectly tight se e'of the trigger bears on the underside of the stock below the face H.
ojection at the rear e an edge of an to effect a tight trigger, curved se curvatures face of the trigger opening in the stock. I seal in all other positions of the faces 19 and 2B are provided who recess of the pistol, 5
have the axis of the trigger pin I6 for their centre. When the trigger is rocked about its pin I6, the curved faces I9 and are always in sealing relation to the mating faces of the stock.
The rod 22 is pivoted to an upward extension of the trigger I4 at 2I. The connection of'the rod and trigger may be separated when the frame 4 is removed, or the connection may be permanent so that the frame, the trigger, and the connecting rod are removed together I Figs. 1 and 2 show the old design of the connecting rod 22. As mentioned, it is one of the objects of my invention to provide an improved connecting rod which eliminates tilting and all other causes of increased resistance against the pulling of the trigger. My improved connecting rod is a double fork. It has a pair of long arms projecting from the front, and a pair of short ,arms projecting from the rear of a transverse 20 web. The two long arms embrace the stock and hold the rod against tilting during the pulling of the trigger. The short arms embrace the hammer and are equipped with hooks engaging shoulders ger to the hammer.
I A forked connecting rod according to my invention is shown in Figs. 3 and 4, and Figs. 5 and 6 show a pistol equipped with such a rod.
26, Figs. 3 and double-fork connecting rod 22. The long arms of the fork at the front embrace a web of the stock I. The longer one of the two long arms is connected to the trigger extension at 2|. Its front end projects beyond the pivot 2| and has a forwardly inclined wedge face 3I. The lower end of the wedge face is engaged by the vertical rear end of a slide 30, Figs. 5 and 6, and a trigger spring 29 acts on the vertical front end of the slide.
with increased resistance.
Controlling abutments 36 are presented by the two longer arms of the connecting rod and enmanner by cooperation of the breech and the connecting rod. If the breech is not in closing I position, the connecting rod is m ved ey nd 4, is the transverse web of the reach of the spring catch 35 and the hammer 31, so that, if the operator still holds the trigger after a cartridge has been fired, the spring catch 35 is not permanently held beyond reach of the hammer, so that firing in succession is prevented, while the hammer 31 can neither be cocked nor operated by the trigger when the ,breach is not closed.
The longer one of the two long arms has a lug 38 which engages in a recess 39 of the breech 40, Figs. 5 and 6.
Means will now be described with reference to Figs. 7
connecting rod 22, and the spring catch 35 havealready been described. When the trigger is pulled, Fig. 8, a hook 68 at the rear end of the connecting rod 22 engages the lug 60 on the catch 35 and moves the catch out of engagement with the hammer. I35 is the spring of the catch 35.
The spring catch 35 is operatively connected to a locking bellcrank I29a which is positioned in a recess I21 of the stock I. The free end'of the bellcrank is opposite a lug I34 on the hammer 37 when the trigger I4 has been released, Fig. 7, and the spring catch .35 has been moved into arresting position by its spring I35. A blow on the non-cocked hammer 31 causes the lug I34 to strike the free end of the bellcrank I29a whereby the hammer is stoppedbefore it reaches the end of the firing pin I28.v This removes any danger from a blow on the hammer. The bellmediately, and so its bellcrank I29a intercepts the hammer 31 before it reaches the firing pin The hammer is only ready for firing when the trigger I4 is pulled, as shown in Fig. 8. The connecting rod '22 rocks the spring catch 35 by its lug 60 until the lug I34 of'the hammer is cleared by the bellcrank I29a, so that thehammer is not interfered with in its operation of the firing pin I28. The spring catch I 35 is held disengaged from the hammer and its bellcrank 129a is held out of reach of the lug I34, until the cartridge has been fired and the breech, in its backward movement, separates the connecting rod 22 and the spring catch 35.
1. A fire arm comprising a hollow stock, a frame capable of being inserted into and removed from the cavity of the stock through an opening therein and having side plates of which one is higher than the other, said cavity being shaped to hold the inserted frame against movement in any direc tion except that of removal, a trigger pivoted in said frame and removable therewith through the opening, and means cooperatingwith the higher side plate for closing the opening and forming the sole means for completing the fixation of said frame in said cavity.
2. A fire arm comprising a hollow stock, a frame with side plates capable of being inserted into and removed from the cavity of the stock through an opening in the top of the latter, one of said side than the other, seatings of the stock holding the inserted frame against movement in any direction except that of removal, a trigger pivoted in the side plates of the frame, and an operative part of the fire arm closing the opening in the stock and completing the fixation of the frame in the cavity thereof by means of said higher side plate.
3. A fire arm comprising a hollow stock, a frame with side plates capable of being inserted into and removed from the cavity of the stock through an opening in the top of the latter, plates being higher formed in the cavity of the stock holding the inserted frame against movement in any direction except that of removal, a trigger, a pin insertable axially through transverse bores in side plates of the frame to form the pivot of the trigger, said pin when the frame is'in the cavity being held against axial shifting by the sides of the cavity, and an operative part of the fire arm closing the opening in the stock and completing the fixation of the frame in the cavity thereof by means of said higher side plate.
4. A fire arm comprising a trigger and a hammer pivotally mounted in the stock, a connecting rod enabling the hammer to be cocked and fired by trigger operation, said rod comprising a bridge piece and two pairsof parallel arms connected by the bridge piece, a pivotal connection between the trigger and said rod, connections rendered operative by rocking movements of the connecting rod between one of its pairs of parallel arms and the hammer, and guide means engaging between the parallel arms of the other pair of arms to ensure fixation of the plane of said rocking movement.
hollow stock, a
hollow stock, a mounted in the a connecting rod enabling the hammer to stock, a connecting rod enabling one of said side comprising a bridge piece and two pairs of parallel arms connected by the bridge piece, a pivotal connection between the trigger and said rod, connections rendered operative by rocking movemerits of the connecting rod between one of its pairs of parallel arms and the hammer, guide means engaging between the parallel arms of the other pair to ensure fixation of the plane of said rocking movement, and a spring catch for holding the hammer cocked, said catch co-operating with the bridge piece of the connecting rod to release the hammer upon firing.
6. A fire arm comprising a hollow stock, a trigger and a hammer pivotally mounted in the the hammer to be cooked and fired by trigger operation said rod comprising a bridge piece and twopairs of parallel arms connected by the bridge piece, a pivotal connection between the trigger and said rod, connections rendered operative by rocking. movements of the connecting rod between one of its pairs of parallel arms and the means engaging between the parallel arms of the other pair of arms to ensure fixation of the plane of said rocking movement, a spring catch for holding the hammer cocked, said catch co-operating with the bridge piece of the connecting rod to release the hammer upon firing, abutment means on the connecting rod near said bridge piece, and a heel on said hammer co-operating with said abutment means to cause the bridge piece to approach the spring catch when the hammer is cocked manually.
7. A fire arm comprising a stock, a hammer and a trigger mounted therein, a spring catch for holding the hammer in cocked position, an arm on ,the spring catch normally obstructing full firing stroke of the hammer, and a connecting rod operable by the trigger to move the spring catch into a position in which it releases the hammer and also carries the arm out of hammer obstructing position, said connecting rod being in the form of e a double fork with a pair of long arms cooperating with the trigger and a pair of short arms cooperating with the spring catch.