Blueprints · 1934
Nickl Schnellfeuer (Mauser Model 712) — US Patent 1,980,874 (1934)
Patent for the select-fire Schnellfeuer mechanism of the Mauser Model 712.
- mauser
- schnellfeuer
- select-fire
- patent
Blueprints · 1934
Patent for the select-fire Schnellfeuer mechanism of the Mauser Model 712.
Nov. 13, 1934. J. NICKL 1980,874 QUICK FIRING PISTOL Filed Nov. 17, 1931 AB 3 Sheets-Sheet l Josef WacA2 8 y 2.6 4-4-1,..., Nov. 13, 1934. J. NICKL . QUICK FIRING PISTOL Filed Nov. 17, 193 1,980,874 3. Sheets-Sheet 2 Z77ve 7 Zo Usef WeA2 Nov. 13, 1934. J. NICKL 1,980,874 QUICK FIRING PISTOL Filed Nov. 17, 193 3. Sheets-Sheet 3 so NS y sisé SS a s Rxyx s S risis S2 S S Ni NSS. Z77 ye77 Z2 a. vare? WzcA2 ey 2-0 v2. 2-4-42 AZ ZoA7ey 1,980,874 Patiented Nov. 3, 1934 UNITED STATES PATENT OFFICE 1980,84 QUICK-FEERING PESTOE, Josef Nick, Oberndorf-on-the-Neckar, Germany, assignor to Wiataser-Werke A. G., Oberndorf on-the-Neckar, Germany, a joint-stock com pany of Gergaaray Application November 7, 1931, serial No. 575,618 in Germany November 25, 1930 3 Claims. (C. 42-69) My invention relates generally to automatic means for locking the breech-bolt in its rearmost breech-loading firearms and more especially to a position immediately by the agency of the han quick-firing pistol of the hammer-type adapted Iner. To this end the breech-bolt is provided at to be changed and set from "single" discharge its rear end with a shoulder adapted to cooperate 6 firing to "series' firing and vice versa, a chief with the hammer for the locking purpose and to 60 feature of the invention also residing in the pro be released by manually moving down the ham vision of means for connecting an attachable mer about its pivot so as to disengage the same supplemental cartridge magazine serving to in from the shoulder. This locking means is par crease the firing capacity, otherwise limited by ticularly useful in preventing the breech-bolt 0 the usual stationary cartridge-magazine, and from flying forwards into the closed position upon 85 neans for locking the breech-bolt in its rearmost removal of the first cartridge holder. position for purposes hereinafter described. Other detailed features of the invention Will Accordingly a setting lever is provided, in con be hereinafter specifically described and then formity With the present invention at a suitable pointed out in the claims. I shall now proceed 5 point on and Outside 'of the handle or grip so as to describe the invention more in detail with 0 to be adapted, upon actuation, to disengage or reference to the accompanying drawings form release the means provided for preventing 'dou ing a part of this specification and showing, for bling" at each single operation of the trigger, by purposes of exemplification, a preferred form and removing the hammer-locking lever from the manner in which the invention may be embodied path of the hammer. This is accomplished by and practised, but without limiting the claimed 6 the said setting lever acting to shift, by means invention to such illustrative instance or in of a projection or nose, a Spring-controlled mem Stances:ber provided on the trigger for locking a rear Figure 1 is a right-hand elevation, partly in pawl, so that the said spring controlled locking section, of the lock-mechanism of an automatic 25 member will lie below the said pawl and will be hammer-operated breech-loading pistol, with the 80 prevented from returning to its former position, setting ever set for series-firing or firing several While the coupling bolt, on its return movement shots in succession; Figure 2 is a similar view upon firing, will cause a nose of the said locking showing the parts in position for firing a single member to catch into a dwell of the pawl, where shot; Figure 3 is a detail view of parts to be i0 by the pressure exerted on the trigger will be referred to; Figure, 4 is a view in top plan of 85 transmitted to the hammer-locking lever by the breech casing constructed according to the means of the said locking member and the sear present invention; Figure 5 is a view in left paw, and the latter will be kept off the path hand side elevation of the part of the pistol on of the hanner as long as pressure on the trigger which the setting lever is mounted; Figure 6 5 prevails. is a view in left-hand side elevation of the pistol 90 In order that in case of "series'-firing the ham with the supplemental cartridge-magazine at ner shall not be caused to fire shots except when tached thereto; Figure 7 is a side elevation and the gun is actually desired to so discharge, I Figure 8 an end elevation of the supplemental have provided a catching lever which is quite cartridge-nagazine; Figure 9 is a view somewhat 0 independent of the hammer-locking ever and similar to Figure 6, but taken. On a reduced Scale 95 adapted to be turned and to lock the hammer, and with the breech-bolt locked in its rearmost When the breech is open, by engaging with one position; and Figure 10 is a similar view of the of its extremities into a notch of the cocked ham pistol with the magazine fitted with 'eartridges. riner, while the other end thereof will project into The automatic pistol herein shown is pro is the path of the barrel or the breech casing, so vided, as usually, with a lock mechanism for 100 that the said casing when returning into the preventing the release of the hammer after each closing position, will act to disengage the said single discharge, until the trigger has been re catching lever from the hanner and firing can leased and is again operated, so that it case of a OCC.E. continued pressure on the trigger several shots 0 Another novel feature of that class of auto in succession will not be fired, since at the Con- 105 ratic pistols failing within the scope of my in a mencement of the rearward travel of the breech vention and provided with a supplemental cart casing the sear pawl will be forced rearwards ridge-Einagazine for the purpose of increasing the by a part of the coupling bolt projecting from stock of available cartridges, for example, from the lower part of the lock so as to disengage, the 10 to 20 cartridges, resides in the provision of pawl from the trigger. When the casing and 110 1980,874 pressure exerted on the trigger, onto the breech-bolt have finished their forward move the hammer-locking lever and lift the latter, so that ment and the trigger is not released, the sear the cannot be locked in cock-position pawl will not project above the rear top nose of and hammer consequently a plurality of successive shots the trigger, but will lie behind the same, so that are intentionally fired, furthermore the resetting the trigger cannot actuate the said pawl. As the lever E to its normal or N-position will soon, however, as the trigger is released, the of return the pistol to the condition of preventing 2 Sear pawl will project over and above the top the discharge of two or more cartridges in im nose of the trigger and the latter thus can op mediate succession at each single operation of erate the pawl and the sear or lever co-operating the trigger, constitute the main feature of my O therewith. invention. The adaptation to "series'-firing or With the above described known construction discharging several cartridges in immediate suc of the usual automatic pistol, therefore, the re cession without releasing the trigger, necessi lease of the hammer is prevented after each in addition to that, the provision of a single discharge so that also the discharge of tates, means Or arrangement for locking the hammer 5. two or more cartridges at each single operation in its Open positon brought about by the recoil of the trigger will be prevented, until the trigger ing of the breech-bolt upon firing, for so long a has been released and is again operated. time until the latter is automatically locked in I shall now proceed to describe the means its closed position again. provided according to my invention for the pur The locking of the automatic pistol is com 20 pose of transposing and setting the pistol from pleted before the barrel has fully returned to its 'single' discharge to "series', multiple or con firing position. Just this peculiarity of the pistol tinuous firing. is utilized according to the present invention, in As Will be best seen in Figure 5 a setting lever providing a catching lever F, see Figures 1, 2 and E is provided on the left-hand side of the up 3, for locking the open hammer immediately upon per part of the grip or handle of the pistol. the firing of a shot. The said lever F is entirely When this lever E is set to overlie the nib N, independent of the hammer locking lever 14 and that is the normal position, the pistol will operate adapted to release the hammer in the last mo as a usual automatic firearm, that is to say, after ment of the movement of the barrel after the each discharge the trigger must be released and breech has been closed, whereupon the hammer again operated for firing the next shot. The adapted to be released for the discharge of a locking mechanism provided to prevent firing of iscartridge. shots in succession, as above described, con As will be seen in Figure 4, the barrel casing stitutes a safeguard against discharging all car is shaped at its rear end to form a curved face tridges of the magazine at a single, continued St for controlling purposes. The catching lever F in the lock casing 9 shown in Figure 1 and 35 Operation of the trigger. When, however, the setting lever E is set to Figure 2 is mounted and adapted to perform a Overlie the nib or mark R, that is, the con movement about its pivoted axis in a tinuous or "series' firing position, the described Short plane perpendicular to the plane of the Figures lock mechanism for preventing successive dis 1 and 2. A flat spring f is adapted to retain the 40 charges will be disengaged. Consequently shotS catching lever F with pressure in its bearing or will be fired in immediate succession as long as Seat and to cause the nose G of the lever to a pressure is exerted on the trigger, and firing catch into a lateral notch of the hammer, see Will be stopped upon release of the trigger. Figure 3, the lug at the one end of the catching When the setting lever E is manually turned to. lever F, projecting into the curved face St of the 45 move from N to R, that is the continuous firing barrel casing, while the catching nose G at the position, the arm. A of the shaft of the lever other end of the lever F projects into the said E will shift the locking member S provided in notch or recess the hammer. the trigger 25, to lie below the lower end of the lateral The operation of theofseveral parts of my im sear pawl 13, see Figure 1, and to secure the proved automatic pistol has been so fully de same in this position. Upon firing a shot the re scribed in conjunction with the description of coiling coupling bolt B (only partially shown) their construction that it seems unnecessary to will act to drive back the sear pawl 13 until the give a detailed description of the operation of nose N of the locking member S catches into pistol as a whole. It may be said, however, the dwell R of the pawl, whereupon the parts the that, as regards the firing operation, when the will positively and immovably remain in en barrel casing with the locked breech-bolt is in gagement, until the trigger is released and firing closed position, the catching nose G of the lever discontinued. Accordingly the pressure on the F will be outside of the path of the hammer due trigger transmitted by the nose N of the locking to the action of the curved face St of the barrel member S to the pawl 13 and the hammer-lock casing, consequently the hammer cannot effect - 80 ing lever 14 by means of a projection 27 of the the discharge of a cartridge except when the bar handle H at the surface 26, will shift the lever rel casing Occupies its closed position and the 14 out of the path of the hammer and remain, is locked. therefore, out of engagement with the hammer pistol Upon firing, the barrel casing, that is, the during the firing of several shots in succession. breech-block or bolt carrier, is moved rearward When the setting lever E is returned to the to open the breech so that the released breech 65 normal or N-position the locking member S resil bolt will fly back and the hammer be cocked. iently mounted in the trigger by means of a Due to the movement of the barrel Casing the spring (not shown), will be inactive, that is to wide portion W of the curved face St will be say, prevented from contact with the sear pawl 13. placed in front of the lug O of the catching 70 It will thus be seen that the arrangement and lever F. As this position of the curved face St means by which the setting lever E will cause, provides room for the catching lever or its lug in case of and during the firing of a series of O to move therein, the hereinbefore mentioned shots in immediate succession, the locking men spring will act to move the catching nose ber to remain permanently in contact or engage flat G of the lever F into the lateral notch or recess 5 ment with the sear pawl, further will transmit 1980,874 3 overcome by the motive energy or momentum of of the hammer and to retain the same therein, the breech-bolt. until the breech-bolt reoccupies its forward po sition in the barrel casing and subsequently the When I use herein the terms "single fring', barrel with the locked breech-bolt has been. "series firing” and "doubling", especially in the claims, it will be understood that the word "sin- 80 moved into closed position. The above described arrangement is necessary gle' means the discharge of Only One cartridge . for preventing the hammer from firing a shot at each single operation of the trigger, the word "series' means a plurality of discharges or shots except after the closing and locking of the breech. fired intentionally in rapid succession, as long as As shown in Figure 6 the Supplemental car the pressure on the trigger is exerted and "dou O tridge magazine a is provided at its upper end or bling' means the firing of several shots in suc orifice with an attaching collar b which is open to allow the cartridges to pass therethrough, and cession, but unintentionally. By reason of the improved construction and shaped to conform to the contour of the usual arrangement the parts which I have devised bottom plate of the main or stationary cartridge and described ofherein I am enabled to charge the 90. s magazine so as to snugly fit in the latter. The firearm with the double amount of cartridges as collar b is equipped at its rear end with a guid compared with the cartridge supply in automatic ing lug c adapted to engage in a recess provided pistols of the type hitherto constructed, simply in the guard d for the attachment of the usual by attaching a supplemental magazine to the closure or bottom plate of the stationary or main 20 cartridge magazine, a bore or hole f being pro stationary magazine in Substitution for the bot 95 vided in the said lug c for the reception of the tom cover of the latter, without causing any in usual spring-controlled locking pin e. The for terruption or disturbance of the charging op ward end of the attaching collar b is equipped eration, since means are provided for prevent with a T-shaped member or hook g adapted to the breech-bolt from returning to its foremost 25 engage in a correspondingly shaped groove of or closing position upon the removal of the first 100 holder. the end wall of the stationary cartridge magazine cartridge From the foregoing it is believed that the novel for the attaching purpose. Normally the pistol is provided with the main features of my invention will be readily under or stationary cartridge magazine only the Open stood and, therefore, further detailed description "unnecessary. The advantages incia 05 end of which is closed by the said bottom plate isdentdeemed to my improved firearm will be apparent to provided with means similar to the described parts b, c and fi of the collar, for the connecting those skilled in the art and it will be obvious that purpose. If, however, it is desired to enlarge the considerable variations may be made in the ace capacity of the magazine by attaching a supple tual structure employed without departing from the true spirit of the invention and the spirit alo 35 mental magazine thereto, as shown in Figure 6, and Scope of the appended clairns. it is necessary only to remove the botton plate I claim is:of the main magazine and to substitute therefor What i. A quick-firing pistol having a hammer, 8. the supplemental magazine since the size or con hammer-locking, level, a trigger, means adapta tour of the collar and the connecting means said pistol for single discharges and series- a 25 thereof are the same as those of the bottom plate. ing At the rear end of the breech-bolt in there is discharges, said means, for the purpose of changa provided a downward projecting nose or shoulder ing from “single" to "series', comprising means to prevent doubling, a setting lever provided on n forming a notch or dwell for the reception of handle and manually operable to release the a rounded edge or projection o at the top of the the means provided for the prevention of doubling, hammer p, as shown in Figures 9 and 10, whereby by holding the hammer-locking lever of the the breech bolt will belocked in its rearmost post path of the hammer as long as a pressure is exe tion. In the construction of the pistol shown in the erted on the trigger, a trigger-locking means, a drawings for purposes of exemplification twenty. Sear pawl and a bolt, wherein, for the purpose of rendering the means provided for the prevention 50 cartridges are supposed to be accommodated in of inoperative, the said setting lever can the two interconnected magazines by means of be doubling set to place the trigger-locking member be two cartridge-holders, and during the insertion of low the sear-pawl so that the said member will the two holders into the magazines the with be locked and prevented from rearward movea drawn breech-bolt will be locked by both the top ment, while the bolt recoiling upon the firing 30 plates of the magazine acting to transfer the of the shot causes the sear pawl to engage the said 55 individual cartridges to the barrel, and the ham member for locking the trigger. mer p cooperating with the shoulder 73 of the locking 2. A quick-firing pistol having a hammer, a breech-bolt. Upon the insertion of the cartridges hammer-locking lever, a trigger, means adapting 30 of the first cartridge-holder r the locking of the Said pistol for single discharges and Series-dis 135 breech-bolt by means of the top-plate or car charges, said means, for the purpose of chang tridge-carriers ceases, while the engagement or ing from 'single' to "series', comprising means cooperation of the locking parts in and o contin prevent doubling, a setting lever provided on ues to keep the breech-bolt in locked condition. to the handle and manually operable to release the After the removal of the first cartridge-holder means provided for the prevention of doubling, 40 65 the breech-bolt does not move into its closed po by holding the hammer-locking lever of the sition since the same is duly locked by the han of the hammer as long as a pressure is ex mer. Thus the second cartridge-holder may be path on the trigger, a spring-controlled trigger inserted, the cartridges thereof forced inward erted and the holder removed. In order to release the locking means having a lug at its top, a sear paw 0. hammer from engagement with the breech-bolt a having a dwell thereon and a bolt, wherein, for 145 purpose of rendering the means provided for slight downward pressure is to be exerted on the the the prevention of doubling inoperative, the said former with the result that the breech-bolt will lever is mounted on a shaft having an fly forward into its closed or foremcst position setting after transferring a cartridge to the barrel. On arm which acts to force and hold the trigger 75 firing a shot the locking action of the hammer is locking member below the sear-pawl so that the 150 4. 1980,874 on theforbreech bolt having an oblique on-run sur said member will be locked and prevented from face d corner and a rounded shoulder, the rearward movement, while the bolt recolling upon position of such co-operation of the hammer and the firing of the shot causes the saidug on the projection with respect to the to and fro travel SO sear pawl to engage the dwell on the said lock of the breech bolt being such that during firing ing member for locking the trigger. s 3. A quick fire pistol comprising a hanner, a the breech bolt will have gained enough impetus its forward travel to overrun the cocked ham breech bolt, a magazine fillable by successive in in sertion of a plurality of cartridge strips, a naga mer. When the projection encounters the corner but when moving forward and blocked zine plate movable to block return of the breech thereof by the magazine plate the breech bolt will be O bolt to closure only when the last cartridge in automatically held by engagement of the corner the magazine is fired and restored to non-block ing position upon insertion of a cartridge strip, of the hanner with said projection, and in a and co-operating locking means on said hammer position permitting insertion of the cartridge and breech bolt comprising a rounded corner on strip. JOSEF NC3. S the hammer extending in an over-cocked posi tion of the same into the path of a projection N 95 20 100 105 30 110 15 5 50 125 30 35 140 70. 145 5 O