CA1225854A - Pistol - Google Patents

Abstract

ABSTRACT
There is described a pistol, the breach of which is provided with a firing pin that can be driven by a firing pin spring or a hammer that is acted upon by a hammer spring. The firing mechanism has a stop that protrudes into the path of movement of a lug of the firing pin or of a shoulder of the hammer and which is connected to the trigger by means of a slide piece. In its foremost end position the slide piece is locked in the firing direction and secures the firing pin or hammer with a partially compressed firing pin spring or hammer spring. On operation of the trigger the slide piece withdraws the stop with a simultaneous compression of the firing pin spring or hammer spring into its unlocked position and moves the stop in the firing direction, whereupon the guide, which determines the path of the stop during the cocking movement, secures the protrusion of the stop into the path of movement of the lug of the firing pin or the shoulder of the hammer.

Description

~ 5~ 21757-133 This invention relates to a pistol o-f the type having a butt that contains a firing mechanism and a slide that moves on this, and which con-tains the barrel and the breech mechanisM, and also having a recoil spring that is supported on the butt and the slide in which regard the breech is provided with a firing pin that can be driven by a firing pin spring or by a hammer that is acted upon by a hammer spring, and the firing mechanism is provided with a stop that is incorporated in the butt group, that protrudes into the p.ltll of movement of a lug on the firing pin or of a shoulder on the hammer whicll is connected to the trigger by means of a slide piece which, in its rear l~ most end position moves from the firing position when the slide moves backward under the action of the firing pin lug or shoulder of the hammer, respectively, that engages on its face surface and which on the forward movement of the slide from the firing pin lug or shoulder of the hammer, respectively, that now rests against its rear face, moves into its foremost end position.
The object of the invention is provide a pistol of which the com-ponellt parts are simpler to produce and which is of simplified construction.
In addition, on the one hand the piston is to operate without failure even ullcler extreme conditions and on the other hand is to be incapable of any un-intentional discharge. According to the present invention this is achieved in that the stop when in its foremost end position is locked in the direction o firing and the firing pin or the hammer is secured with a partially tension-ed firing pin spring or hammer spring; when the trigger is activated the slide piece returns the stop to its unlocked position at the same time conpressing the firing pin spring or the hammer spring, respectively, and moves the stop in the firing direction whereupon the guide, which determines the path of the stop during the actual cocking movement, ensures that the stop projects into the path of movement of the lug on the firing pin or the shoulder of the hammer, , , - 1 - ' ~'~

5~

respectively.
The invention will now be described in greater detail with refer-ence to the accompanying drawings, in which:
Figure 1 shows a piston according to the present invention in side viel~;
Figure 2 is a partial longitudinal section and Figure 3 is a partial plan view of the butt with the slide raised;
Figure 4 is a cross-sec~ion drawn on the line IV-IV in Figure 5;
Figure 5 is a plan view of the butt with the slide raised;
Figure 6 is a view of the raised slide ~rom below;
Figures 7 to 9, respectively, show a variation of the firing mechanism in side elevation, plan view, and in a partial side cross section in the direction of the arrow IX in Figure 8;
Figure 10 is a view from below of a suitable slide;
Figures ll to 13, respectively, show a further variation of the firing mechanism in side view, plan view and a view from beneath of a suitable slide;
Figures 14 and 15 are sectional and end views, respectively, show-ing a firing pin according to the present invention;
Figures 16 to 19 are a front view, side view, fragmentary rear view and plan vie~; respectively, of a magazine according to the present in-vention;
Figures 20 to 23 are different possible cross sections of thebore; and Figure 24 shows a hammer drlve.
The pistol consists of a butt assembly that is numbered 1 and a slide assembly that is numbered 2, arranged in such a manner as to move on the :
~ ...
, ~ - 2 -~ ~ .
- ~ ~ ~,; . ..

.::

:

::L22~5~

butt by means of a tongue and groove guide 3. Within the slide 2 there is a break-joint barrel 4 and a breech 5 (Figures 2J 6, 10, 13). The barrel 4 has a chamber 6 and a projection 7 that protrudes to the rear. Within the butt assembly 1 there is a slot 201 in which a slide 202 can move. This is forced into its uppermost positlon by means of a leaf spring 203. This spring is retained in the butt assembly by means of a short arm 204 and a longer spring arm 205 lies in a detent 206 of the slide 202. Since this spring arm 205 is arranged in a slot 207 in the butt assembly 1 the slide 202 is simultaneously restrained from any longitudinal displacement.
In the area close to the central plane of the pistol, adjacent to its upper edge, this slide is provided with a groove 208 in which a bar 209 on the projection 7 of the barrel 4 can engage.
This projection 7 has an inclined groove 9 that interacts with a cross piece 210 of a retainer 211 that is housed in the butt assembly 1. This is secured in its position within the butt assembly 1 by means of a shaft 212, the trigger 63 also being mounted so as to pivot about this shaft 212.
The slot 207 that serves to accommodate the spring arm 204, the slot 201 and the recess used to accommodate the retainer 211 are arranged obliquely to tlle axis of the bore and are preferably parallel to the maga~ine ~a housillg ~3 so that formation of the cores during the production of these grooves and recesses is easily undertaken. Thus it is simple to produce the butt assembly in one piece from plastic.
In order to make it possible ~o pull the slide 2 together with the barrel 4 and the recoil spring 14 forward the slide 2 must be drawn back some-what in order that the bar 209 of the projection 7 comes out of the grooves 208 in the slide 202. This can then be moved downward against the force of the spring 203 thereby freeing the barrel together with teh slide. When the slide . - 3 -t ' : `

' ~, :' .
~ ~ , ' ' ' ' , ~' ,' '.
.

~s~s~

is inserted the wedge surface 213 rides over the upper edge of the slide 202 and momentarily forces this downward against the pressure of the spri~g 203.
Once the projection 7 has passed over the slide the bar 20~ enters into a detent in the groove 208 of the slide 202 under the action of the recoil spring 14, ~hereby ensuring the mutual locking in the manner of a tongue-and-groove.
This type of barrel locking can also be used in other types of pistols.
Figures 4 to 6 sho~ a firing mechanism which is of particularly simple construction. A block 221 is set into the butt assembly 1 and held in ln pOSitiOIl by means of a pin 222 within the area of the longitudinal centre plane of the pistol. This has a chamber 223 into which an angled arm 224 of the slide piece 225 protrudes. Between its lower end 226 and the rear wall 227 that defines the chamber 223 to the rear there is a compressed spring 228 and tl~is acts so as to force the slide piece 225 upward and to the rear.
The arm 224 of the slide piece 225 is connected to the leaf end 230 of the slide piece 225 by means of a bridge piece 229. This bridge piece has a portion that protrudes to the rear and this forms a stop 231 for the firing pin.
The leaf 230 is provided with a multi-angled cutout 232 and a

2~ projection 233 of the block 221 passes through this. Adjacent to this projec-tion 233 there is a groove-like side recess 234 in the block and this is orient-ed obliquely uwpard and to the rear and the leaf spring 235 is accommodated in this. This has a border 236 that faces outwards and forms a control surface 237 for the inclined face surface 238 of the slide piece 225. The other end of the leaf spring is squared off opposite the border 236 and accommodated in a groove 239 of the block 221. Next to the border 236 there is a control edge 240, this being arranged in the path of movement of a control bar 241 on the ~ - 4 -:: .
~:, ... ..
., under side of the slide 2. At its ends the control bar 241 is ~rovided with two inclined surfaces 242 and 2~3.
The front end of the slide piece 225 is articulated to the trigger ` 263 by means of a pin 244.
.~ When the pistol is uncocked the spring 228 ensures that the slide piecc 225 is in its rearmost position where the inclined surface ,38 rests a~ st the control surface 237, which means that the projection 233 is in the tlpper portion 245 of the cutout 232. When the slide piece 225 is in this posi-`~ tion the stop 231 is below the path of movement of the lug 101 of the firing l~ pin 26. If the slide piece 2 is withdrawn to the rear in order to feed the first round into the barrel the control edge 240 is moved inward -from the in-~ clined surface 242 of the guide rail 241 so that the inclined surface 238 of '`,1 tlle slide piece 225 and the control surface 237 of the leaf spring 235 are dis-cngaged. This meaDs that the spring ?28 of the slide piece 225 can pivot up-ward so tllat the projection 233 then lies in the lower area 2~6 of the cutout 232 in the leaf 230. This means that the end of the slide piece 225 has overrun the border 236 to the side so that the surfaces 237 and 238 are rendered '~ ~ .ineffcctive .
In this position, the stop 231 stands in the path of the lug lOl ~d o~ the firing pin 26, so that when the slide moves foward the lug 101 comes into contact with the stop 231 and then moves forward together with the slide piece 225, until the projection 233 takes up the position in the cutout 232 that is shown in Figure 27. The pistol is now cocked.
On firing, the slide piece 225 is first guided by the projection 233 and displaced to the rear with the assistance of the spring 228 and against the force of the firing pin spring that is thereby compressed, until the surfaces 237 and 238 come into contact with each other. In this position the ~' . :

~2S8~i~

projection 233 has reached the wide area of the cu~out 232 so that the slide piece 225 is pivoted downward by the fact that the inclined surface 238 slides along the control surface 237. When this is done the stop 231 releases ~he lug lOl of the firing pin 26 and the shot is fired. The control edge 240 is once again moved inward during the rearward movement of the slide 2 as a result o the recoil, this being done by the wedge surface 242, so that the inter-action clescribed above can be repeated.
The position of the control bar 241 ensures that the wedge sur-face 242 only releases the control edge 240 if the barrel and the breech are locked. If the slide does not for some reason move forward fully the bar 245 holds the leaf spring 235 in position curved inward. If the trigger 63 is now operated the inclined surface 238 does no~ come into contact with the control surace 237 so that the slide piece 225 is not pivoted downward and the s~op 231 does not release the firing pin bolt 101.
It is also possible to provide a device to ensure rapid readiness of the weapon for firing when the magazine is changed. To this end, a lever, numbered 301 as a single unit, is pivoted about the shaft 212 of the trigger 63. To this end the trigger 63 has a cutout 302 on one side. The lever 301 has a hook 303 on its underside in which one end of a wire spring 304 is fastened 9 2~ and this is wrapped around the shaft 212 and then secured in a groove of the cross piece 210. This spring acts so as to pivot the lever 301 into its lower end position in which a thumb piece 305 lies in a recess in the butt group 1.
In addition, on-its upper side the lever 301 has a lug 307 that extends into the path of the slide that is spring loaded in the magazine and which acts so as to force the cartridges upward. ~hen the last cartridge in the magazine is slid into the barrel the magazine slide contacts the lug 307 of lever 301 and attempts to pivot this upward. ~owever, the lever 301 is prevented from , . . , : , .. . .

movillg in this manner by the lower edge of the slide 2. Once the round has been fired the lever 301 enters a recess 308 on the lower edge of the slide 2 if this is in its end position. Thus the lever 301 locks the slide 2 against any forward movement. Because of the articulation of the lever 301 on the shaft 212 (see Figures 4 and 5) this lock is maintained if the magazine is withdrawn and replaced by a new magazine. ~s soon as the lever 301 is pivoted downward by the thumb piece 305 the slide 2 will be forced forward by the recoil spring 14 and will slide the first round contained in the new magazine into the barrel.
Thus it is no longer necessary to pull the slide to the rear after changing the magazine.
The Figures 7 to 10 show a variation of the firing mechanism shown in Figures 4 to 6 in which the connecting link is provided not in the slide piece but in the butt assembly or in a block that is inserted into the butt assembly, respectively. Preferably, as has already been described, a leaf spring 235 is inserted into the block 521 that is of plastic and the bordering 236 of wllicll forms a control surface 237, this interaction with the inclined surface 538 of the slide piece 525 occurring in the same way as the control edge 240 interacts with the bar 241 of the slide 2.
The slide piece 525 has a bridge piece 529 which on one end has ~0 the stop 531 and on the other the squared off portion 526. Furthermore this has a wing-like extensi.on piece 544 and a control edge 545.
A cutout 546 on one side and on the other an aperture in the block 521, in which the wing piece ~extension piece) 544 engages form the connecting link.
On the lower side of the breech 5 a single arm lever 548 is arranged in such a manner as to be able to pivot and this has a projection 549 that extends into the path of movement of the firing pin lug 101. This lever ,, ; ' .
:; ~ - - :
. ~
.

.. .

is acted on by a leaf spring 550 that is supported by its free end 551 on the breech 5, and lies beneath the bar 241 and attempts to pivot the lever 548 in such a manner that the projection 549 moves into the path of movement of the firing pin lug lOl.
The method of operation of this firing mechanism is much the same as the mechanism shown in Figures 4 to 6. The stop spring 228 draws the slide piece 525 to the rear so that its inclined surface 538 moves downward along the control surface 237 so that the bridge piece 529 moves into the cutout portion 546 and tlle wing (extension) piece 544 moves into the lower area 552 of the aperture 547. In this position the stop 531 is ou-t of the path of movement of the firing pin lug lOl. The control edge 545 is then beneath the lever 548 so that this takes up the position shown in Figure 10, in which it secures the firing pin.
lYhen the slide 2 is drawn back the bar 241 moves the spring 235 to the centre, so that the control surface 237 is moved off the inclined sur-face 538 and the slide piece 525 is released so that the stop spring 228 can dra~Y this slide piece upward and rearward. The stop 531 and the control edge 545 then move into the path of movement of the firing pin lug 101.
When the slide 2 moves forward the firing pin lug 101 carries the ~a stop 531 and thus the slide piece 525 and the trigger lever 63 forward. When this is done the bridge piece 529 moves out of the recess 546 and the wing piece 544 moves into the narrow area 553 of the aperture 547. As soon as the wing piece 544 reaches the walls of the aperture 547 the stop 531 secures the firing pin lug 101. The stop 531 is secured in its position by the narrow sector 553 of the aperture 547.
On firing the slide piece 525 moves to the rear and the stop 531 moves the firing pin lug 101 back with it during further compression of the : ~:
' ;;
. : :

:~ ;; '" , . ' , firing pin spring. As soon as the inclined surface 538 contacts the control surface 237 further movement of the slide piece 525 moves this downward so that the bridge piece 529 can enter the cutout 546 and the wing piece 544 can enter tlle broad area of the aperture 547. On this occurring, the stop 531 releases the firing pin lug 101 and the round is fired.
Because of the movement of the slide piece 525 to the rear the control edge 545 also moves into the area of the projection 549 and forces the lever 548 to the side so that the projection moves out of the path of movement of the firing pin lug 101 and does not hinder the forward motion of the firing a l)in .
Because of the fact that the additional safety elements 548, 549 are located on the bolt 5 any shocks or forces cannot release these safety elements. A deliberate shot brought about by operating the trigger lever 63 is required to do this.
Figures 11 to 13 show a further variation of the firing mechanism shown in Figures 4 to 6 and 7 to 10. In this connection the control edge 545 andthe lever 548 shown in Figures 7 to 10 are replaced by a control pin 545 and a knob 548. The position of the control pin in front of the tip of the firing pin effects an additional safety measure in the event that the firing pin breaks. The method of operation itself is identical to the one described above.
The versions described in connection with the drawings can also be used in pistols in which a hammer drives the firing pin. In this case, a shoulder of the pivoting hammer replaces the lug of the ~iring pin and the stop then works on this. A pistol configured in this way embodies the same advan-tages as the pistols described above.
In familiar pistols, when centre fire cartri.dges are used, the tip of the iring pin may be broken off or damaged if the tip is not withdrawn _ g `'' ':' ~

~5~

promp~ly into the basc of the breech. According to the present invention the tip of the firing pin is configured as is shown in Figures 14 and 15. The tip of the firing pin can project through an elongated slot in the longitudinal central plane of the pistol, in the base of the breech. In theeven~ that a cartridge case is ejected or a fresh cartridge is slid into the barrel before the tip of the firing pin 27' is completely inside the aperture in the base of the breecll 5 thc firing pin will not become damaged but will be forced back by the cartridge case or the cartridge itself. The elongated configuration of the aperture in the present invention hinders the more usual buildup of stress la in brass that is usually found in pistols having a break-joint barrel. The lance-shaped configuration used here in the sense of the present invention is understood to include every shape that is of circular cross section and which deviates from the cylindrical form of conventional firing pins and which in the mnin is configured so as to be flat. The preferred embodiment is a triangular configuration which is, for example, obtained by using a cone shape with a spherical cap-like tip and shoulders which are produced symmetrical with each other on opposite sides, the remaining parabolic sides being configured so as to be flat or slightly concave or convex, respectively.
The magazine shown in Figures 16 to 19 consists of a plastic casing ~a 401, a base 402 and a metal insert 403. The magazine is of conventional pris-matic shape and the base 402 is inclined. The base is slid into the lower end of the magazine by means of a groove 404 and a tongue 405 and is secured by a detent lock 406. A spring ~07 rests on this and this forces a slide 408 up-wards. The cartridges 410 rest agam st a shouider 409 on one side of this slide 40S. In the lower portion of the magazine they take up a position in which their axes are perpendicular to the front wall 411 and to the rear wall 412.
In the upper portion of the magazine the~metal insert 403 forms guides that ' ,~ 3 ' . . ' ': . ' ' ~,, .:
, . ' . ' ~ , `'; '' ' ~ ;~2~3S~

taper very sharply towards the top and force the tips of the cartridges into the vicinity of the central plane of the magazine so that the cartridges line up and finally take up a position that is in the main parallel to the base of the magazine 402. The metal insert 403, that is associated with the cartridge bases and which forms the magazine wall converges first towards the end of the magazille so that, as can be seen from Figure 16, the bases of the cartridges remain for a longer period in their original staggered position. This can be seetl from the comparison of the dashed-dotted zig-zag line in Figures 17 and 18.
Two important advantages are achieved by the configuration according to the present invention. The position of the cartridge base makes it possible to achieve soft contact between them and the rear wall of the magazine 412 so that friction is reduced and there is a reduction in the resistance to move-ment. Any tendency to hang up on the rear wall is thereby precluded. The sccond advantage lies in the fact that contact between the cartridges during alignment in the upper portion of the magazine changes. It changes from linear contact to point contact so that there is no mutual interference as the cart-ridges pass through the upper portion of the magazine. The front end 415 of the slloulder 409 on the slide 408 can interact with the lever 301 in Figure 5 in that this portion comes into contact with the projection 307 when the last car-2~ tridge is slid into position. The metal insert 403 has several openings 416 that extend from the outside towards the interior and provide for secure anchoring of the insert in the plastic casing 401 of the magazine.
The present invention is not confined to the versions illustrated and described. Its component parts can be combined in a malmer other than that shown. Common to the versions described is the fact that the stop for the firing pin or hammer, respectively, can move in two directions that are not parallel to each other. This me~ns that it is possible to use the stop both for .~

. :.
~. : . ' ~ :

585i~

securing the firing pin and for releasing it and this means that not only is manipulation for operating the trigger reduced but the number of component parts is considerably reduced as well. This double movcment can also be divided between the stop and the firing pin or hammer. respectively.
Because of the arrangement of a stub spring, the action of which is counter to that of the firing pin spring only a differential force need be a})plied to the trigger in order to fire a shot.
In addition to these fundamental advantages the pistol according to the present invention entails further advantages. Thus, for axample, the 1~ rest position of the trigger is determined by the stops 233, 544 in block 221, and 521 (Figures 4, 9, 12), so that no special limiting stops for the trigger are required. This means that costly adjustment is made unnecessary. Because of the fact that the parts required for releasing the firing pin and for locking it are compressed into a very small area it is possible to keep the blocks 221, 521 relatively small. Thus there is room in the butt assembly in the region behind the shaft for the magazine. This permits an arrangement in which the butt is close to the axis of the barrel which means that when a short is fired there is only a small rotational movement that acts on the hand. The pistol does not lift as much and this contributes to greater accuracy.
In newer pistols the spaces needed to accommodate the trigger, slide piece and the guide pieces can be produced by cores~ that can be very easily shaped. The same applies for the magazine shaft and the channel for the magazine securing slide. Thus the butt can be made in one piece.
It is expedient to produce the guides for the slide of metal, in the butt group. In this regard it is sufficient to arrange two pairs of guides that can be incorporated in the plastic during the production of the butt piece.
It 15 conventi.onal that the rifled por~ion of the bore be provided .

with grooves that are rectangular, trough-shaped or arced. In the case of a sharp transition from the grooves to the lands the corners are not completely filled by deformation of the projectile and can only be cleaned with difficulty.
If these transitional areas are rounded off this disadvantage is modified al-though it is difficult to keep the cross section constant throughout the length of the barrel. Above all else the radii of the rounded portions can vary. The same disadvantage is displayed by modern pistol barrels in which the outline of thc cross section of the bore has three sectors of smaller curvature and three sectors of greater curvature between these. The sectors having ~che smaller curvature have a radius of curvature that is greater and the inter-mediate sections have a radius of curvature that is smaller than the radius of the calibre. Here, too, the cross sections of bore cæn vary, when viewed along the length of the barrel. Thus there can be a poor seal between the projectile and tile barrel either from the very outset or as the projectile moves down the barrel ~
Thus this invention undertakes the task of finding a cross section that can be produced with great accuracy throughout the whole length of the rifled portion of the bore so that there is a constant seal between the projec-tile and the barrel~
~a Accordingly the invention relates to a pistol in which the outline of the cross section of the rifled portion of the bore consists of several sectors that lie in one circle, and intermediate sections. Each sector is, of course, bounded by two radii and an arc whereas each section is bounded by two radii and a chord (secant) or concave curve. An advantageous version results if the cross sectional outline consists of six sectors and six intermediate sections, in which regard preferably the lengths of the sectors and those of the intermediate sections are of approximately the same size.

:
- .
:, , -According to Figure 20, the outline of the cross section of the bore has six sectors 601 which lie on one circle and which correspond with the calibre as well as six intermediate sections 602. The sectors and the inter-mediate sections are of approximately equal length.
Such a cross section can be produced with great accuracy since the sectors lie on one circle, the centre point of which lies on the longi-tudinal a~ls of the barrel. In the same way the straight sections can be pro-duced with great precision since they lie opposite each other in pairs and for thls reason can be accurately measured. As has been shown in practice, a good seal between the shot in the barrel is achieved and thus the charge energy can be better utilized. At the same time the ballistic characteristics of the projectile are improved.
The number of sectors and intermediate sections is not limited to six. Figures 21 and 22 show in each instance eight sectors and Figure 23 shows our sectors. The intermediate sections do not have to be rectilinear but they can be of a concave shape 603 as is shown in Figure 21.
Fundamentally the number of sectors can be selected as desired.
Tllis number must however be greater than three. It is important that the sectors 601 all lie on one circle 604 that is the same as that of the calibre 7n or is almost the same.
An application of the invention to a pistol having a firing pin that is driven by a hammer is shown in Figure 24.
The hammer 131 is mounted so as to permit rotation about a trunnion 132 within the butt assembly 1. A rod 133 is articulated to this. This is arranged within a cavity 134 in the butt and is acted upon by the force of a spring 135. ~t has a side shoulder 136 in which a stop 138 engages. This sits on the trigger slide 146 that passes through an opening 148 in the butt assembly ., :
- ]4 -''''`' ` ~ ' ~ ~ '`
:

:

i8Si~

1. The stop 138 is moved parallel to the shaft 132 by means of guide surfaces (not illustrated) which correspond, for example, to the control surface 237, and this is done so that the stop 138 and the shoulder 136 disengage from each other and the hammer 131 is released. The face surface 152 corresponds to the control surface 240 and performs the same function.
The features described herein can be used independently of each other in pistols of any familiar construction without prejudice to any of the advalltages herein described.

. . :

, ., .. :
. ~ .. .
.

!

Claims (18)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A pistol with a butt assembly that contains a firing mechanism and a slide that moves on the firing mechanism and contains a barrel and breach as well as a recoil spring that is supported on the butt piece and the slide, in which connection the breach is provided with a firing pin that is driven by a firing pin spring or by a hammer that is acted upon by a hammer spring and in which the firing mechanism has a stop that is mounted in the butt assembly and which protrudes into the path of movement of a lug of the firing pin or of a shoulder of the hammer and which is connected to the trigger by means of a slide piece which in its rearmost end position during the backward movement of the slide under the action of the firing pin lug or shoulder of the hammer that engages on its face surface moves into the firing position and during the forward movement of the slide from the firing pin lug or shoulder of the hammer that is now on its rear face moves into its forward end position, characterized in that the stop is locked in its forward end position in the firing position and holds the firing pin or hammer respectively with a partially tensioned firing pin spring or hammer spring, during operation of the trigger the slide piece brings the stop back to its unlocked position with simultaneous compression of the firing pin spring or hammer spring and moves the stop in the direction of firing, in which connection the guide which determines the path of the stop during a cocking movement, ensures the projection of the stop into the path of movement of the lug of the firing pin or the shoulder of the hammer, respectively.

2. A pistol according to Claim 1, characterized in that the stop for the firing pin lug is on the slide piece and is acted upon by the stop spring that forces it into the path of movement of the firing pin lug, in which connection the stop moves in the direction of firing either under the action of the firing pin lug or under the action of the end of the slide piece that is guided in the butt group and which bears the stop and which accordingly permits the movement of the firing pin lug past the stop towards the rear or else releases the firing pin for initiation of the shot.

3. A pistol according to Claim 2, characterized in that the end of the slider that bears the stop is guided by means of a connecting link in the butt group.

4. A pistol according to Claim 3, characterized in that the connecting link consists of a cutout in the slide piece that has a narrower and a wider area in which a projection on the butt assembly engages and which prevents a firing movement of the stop in the narrower area of the cutout but which permits a movement into the wider area in which connection the slide piece is guided in the end area of its movement obliquely to the path of movement of the firing pin lug and which moves the stop from its path of movement.

5. A pistol according to Claim 3, charasterized in that the connecting link is arranged in the butt assembly or in a block inserted in the butt, in which the slide piece engages by means of a projection.

6. A pistol according to Claim 1, having a break-joint barrel, characterized in that the front position of the barrel is determined by means of a barrel projection and a stop that protrudes into its path of movement and which in the main can be brought in a direction that is transverse to the axis of the barrel from the path of movement of the barrel projection.

7. A pistol according to Claim 6, characterized in that the stop consists of a slide that is guided in a slot in the butt assembly.

9. A pistol according to Claim 7, characterized in that the slot can be traversed transversely to the longitudinal central plane of the pistol and the slide is acted upon by a leaf or wire spring that engages in a recess in the slide and forces this into its locked position and which prevents movement transverse to the longitudinal central plane of the pistol.

9. A pistol according to Claim 6, 7 or 8, characterized in that the barrel projection and the stop are connected to each other so as to be releasable in the direction of recoil, for example, by means of a groove and a tongue that are transverse to the longitudinal central plane of the pistol.

10. A pistol according to Claim 6, 7 or 8, characterized in that the cross piece that engages in a groove of the barrel projection is part of a retainer that is set by means of side pieces in a recess in the butt group.

11. A pistol according to Claim 1, characterized in that the butt assembly is of one piece, preferably of plastic, and the recesses produced by cores in the butt group for the blocks that contain the firing mechanism, the retainer that has the cross piece for guiding the break-joint barrel the slot that accommodates the stop for the break-joint barrel and the like are oriented in the same direction, preferably in the direction of the magazine shaft.

12. A pistol according to Claim 11, characterized in that metal guides for the slide are anchored in the butt assembly or retained by the plastic of the butt group.

13. A pistol according to Claim 1, characterized in that a safety device is provided in the slide this securing the firing pin in position, in relation to the breach, against the effect of the firing pin spring and having a control bridge on the firing mechanism, e.g., which interacts with a slide piece so that the firing movement deactivates the safety device.

14. A pistol according to Claim 13, characterized in that the safety device is located ahead of the firing pin seen from the firing direction.

15. A pistol according to Claim 1, 2 or 3, characterized in that the firing pin has at its end a lanciform pin section and the base of the breach is provided with a slot-like opening for the passage of the firing pin section, this lying in the area of the longitudinal central plane of the pistol.

16. A pistol according to Claim 1, in which the outline of the cross section of the rifled portion of the bore consists of a plurality of arc-shaped sectors that lie on one circle and intermediate sections, characterized in that the intermediate sections each bounded by two radii and a secant or concave curve.

17. A pistol according to Claim 16, characterized in that the cross sectional outline consists of six sectors and six intermediate sections.

18. A pistol according to Claim 16 or 17, characterized in that the lengths of the sectors and the lengths of the inter-mediate sections are approximately equal.