US 3143819 A
Description (OCR text may contain errors)
g- 11, 1964 F. F. STEVENS, JR
MAGAZINE FOR PISTOL Original Filed Dec. 6, 1957 KMM Z W N N R Z 6 .T T v 4 F a 3 m m F. m a a rmwmw w 5 Z 4 W .w
United States Patent 3,143,819 MAGAZINE FOR PISTOL Frederick F. Stevens, Jr., Lanes Pond Road, Northford, Conn.
Original application Dec. 6, 1957, Ser. No. 701,035, now Patent No. 3,069,976, dated Dec. 25, 1962. Divided and this application Dec. 10, 1962, Ser. No. 243,500
4 Claims. (CI. 42-50) This invention relates to magazines for use in conjunction with pistols, particularly of the semi-.automatic-type. More particularly, the invention deals with a structure of this type and kind including means for controlling the feed of cartridges through the magazine and delivery at the discharge end thereof and, particularly, in the guidance of the cartridge feed or elevator longitudinally of the casing of the magazine.
The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:
FIG. 1 is an enlarged side view of the casing and bottom plate of the magazine casing, with part of the construction broken away.
FIG. 2 is an enlarged broken side and sectional view of the complete magazine made according to my invention, illustrating the elevator in the lowered position in full lines and in the raised position in dotted lines, the latter position illustrating delivery of the last cartridge in dotted lines.
FIG. 3 is a section substantially on the line 3-3 of FIG. 2.
FIG. 4 is a perspective view of the elevator of the magazine detached; and
FIG. 5 is a perspective view of the elevator guide button detached.
This application is a division of my application Serial Number 701,035, filed December 6, 1957, now Patent No. 3,069,976.
The magazine, as shown in FIGS. 1 and 2 of the drawing, comprises an elongated casing 10, having an elongated angularly disposed aperture 11 at one side thereof, the opposed side having an irregular-shaped aperture 12 opening through the lower edge of the casing.
The rear portion of the casing has a slightly enlarged rectangular portion 13, noted clearly in FIG. 3 of the drawing, in which a spring 14 is arranged and fitting and operating in this rectangular portion is the end 15 of an elevator 16.
The elevator 16 is shown in diagrammatic prespective in FIG. 4 of the drawing and comprises a platform 17, having a downwardly projecting tubular portion 18, the bore of which includes opposed lugs 19. At one end of the platform is an upwardly projecting V-shaped tongue 20 forming a seat for the rear portion or shell end of the cartridge, illustrated in dotted lines at 21 in FIG. 2. This end of the platform has, at its lower surface, a recess 22. The other end of the platform is rounded, as seen at 23, to form a bearing support in the magazine 10.
At the rear lower end of the rectangular portion 13 is a tapered ramp 24, the lower end of the ramp being notched, as seen at 25, and the rear lower end of the rectangular portion 13 has a rear and side projecting flange 26, noted in FIG. 2 of the drawing. It will also be noted that the forward rounded end of the magazine 10 includes an inwardly extending flange 27.
The upper portion of the magazine casing is more or less of standard construction and includes the cartridge escape side openings, as diagrammaticaly seen at 28 in FIG. 2 of the drawing.
3,143,819 Patented Aug. 11, 1964 In FIG. 5 of the drawing is shown a perspective viewof a button 29, comprising a collar 30, having on one surface thereof a key portion 31, which fits and operates in the elongated aperture 11. The upper surface 32 of the key portion is adapted to strike a mechanism of the pistol in checking upward movement of the button, as clearly disclosed in the application hereinbefore identified, and of which this application constitutes a division.
The shank portion of the button has a pair of opposed lugs 33 which operatively engage the lugs 19 of the elevator 1.6. The spring, not shown, is mounted on the shank between the lugs 33 and the collar 30 and serves to maintain the button with the reduced end 34 of the button within the tubular portion 18.
However, by pushing inwardly upon the button with the elevator in its lowermost position, the end 34 can be moved into engagement with the aperture 12 to hold the elevator in the lowered position against the action of the spring 14 to facilitate free loading of cartridges in the magazine.
Upon inserting the last cartridge in the magazine, slight downward pressure will move the button downwardly, releasing it from engagement with the wall of the aperture 12. Then the button is returned to its normal position, thus freeing the elevator for upward movement. At the lower end of the magazine is a plate 35, which fits over the lower end of the magazine casing and is held thereon by a grooved lug 36 engaging the flange 27 and grooved block 37 engaging the flange 26, as most clearly seen in FIG. 2 of the drawing. This coupling engagement is by sliding movement of the bottom plate from left to right, as viewed in FIG. 2 of the drawing.
The rear portion of the plate 35, beyond the block 37, is forked or recessed, as seen at 38, to receive magazine retaining means on the pistol, which is not shown. This means is actuated in removal of the magazine. It will appear that the block 37 seats in the notch 25 of the ramp 24.
The plate 35 has an aperture 39 to receive a downwardly projecting lock stud 40, as clearly noted in FIG. 2 of the drawing. The stud 40 forms a seat for the lower end of the spring 14, the spring retaining the lock in position and this lock retains the magazine bottom plate 35 against displacement from the magazine casing. To release the bottom plate 35, the stud 40 is pushed inwardly to clear the aperture 39.
In assemblage of the magazine, the button 29 is first arranged in the elevator 16 with a spring not shown, disposed on the button between 30 and 33. The elevator, with the button assembled therein, is then placed in the casing of the magazine with the key portion 31 arranged in the elongated aperture 11 and with the reduced end 34 of the button in engagement with the aperture 12, after which, the spring 14 has its small end positioned in the recess 22, as indicated in FIG. 2; whereupon the plate 35, with the lock stud 40 thereon, is coupled with the lower end of the magazine, as clearly indicated in FIG. 2, the spring 14 being placed under tension in this operation. The cartridges 21 are then assembled in the magazine through the upper end thereof and, when filled, the magazine will be in position for assemblage with the pistol and, in this assemblage, the means on the pistol, hereinbefore referred to, will engage the forked or recessed portion 38 of the plate in retaining the magazine in position in the usual grip of the pistol, as well-known in the art.
Considering FIG. 2 of the drawing, it will be apparent that the casing 10 of the magazine is of less width at the lower portion than at the upper portion and the elevator 16 assumes, in its lowermost position shown in full lines in said figure, a greater angularity than when in its fully raised position, as indicated in dotted lines in FIG. 2. It
will, thus, be seen that, as the elevator 16 moves upward- 1y with the button 29 in the elongated aperture 11 arranged at a distinct angularity, the elevator 16 is auto- 'matically'operated to provide a constant change of the angularity of the same, so as to finally assume the dotted line position in support of the last shell in position for delivery to the chamber of the barrel of a pistol, in
conjunction with which the magazine is used.
The upward'fiare or taper of the chamber of the car- 'tridge casing contributes to the resultant change in shifting position of the cartridges from the full line position of the elevator 16 to the dotted line position in FIG.
,2. In other words, regardless of the number of cartridges -in the magazine, the uppermost cartridge would, at all times, assume the angular position, as indicated in dotted vlines by reason of the fact that all other cartridges have been fixedly maintained within the tapered walls of the casing and by'positioning of the elevator in their respective positions to each other.
To more clearly understand this action, it will appear that the pressure of the spring 14 upon the elevator tends,
at all times, to maintain the surface 23, note FIG. 2, in engagement with the forward wall of the casing and, with the button 29 traveling upwardly in the angularly disposed aperture 11, automatically provides the constant change of angularity of the elevator from the lowest full line position to the raised dotted line position of FIG. 2.
Having fully described my invention, what I claim as I new and desire to secure by Letters Patent is:
1 A magazine for firearms of the class described, said magazine comprising a tubular casing, an elevator movable'in said casing for control and delivery of cartridges ,to the firearm, in connection with which the magazine is assembled, a coil spring for actuating said elevator, said elevator supporting a button axially movable in said elevator, means on said button engaging means on one side wall of the casing for guiding said button upwardly and angularly with respect to opposed end walls of said casing, said opposed end walls of the casing being flared to the upper end of the casing, said elevator including an upwardly projecting tongue at one end .forming a seat operatively engaging an inner end of a cartridge supported on said elevator throughout full movement of said elevator, said tongue operating on one end wall of the casing, and the other end of the elevator being rounded :to operate on the other end wall of the casing.
2. A magazine as defined in claim 1, wherein the casing includes an enlarged rectangular portion partially formed by the first named end wall, and said coil spring and inner ends of the cartridges operating in said rectangular portion.
3. A magazine as defined in claim 1, wherein the flare of the casing, the second named means and pivot of the elevator on said button operate to constantly change angularity of the elevator in its upward movement in the casing by said spring.
4. A magazine for firearms of the class described, said magazine comprising a tubular casing having upwardly flared end walls, an elevator pivotally and slidably mounted in said casing for controlling and delivery of cartridges to the firearm, in connection with which the magazine is assembled, said elevator supporting a button axially movable in said elevator, means on said button engaging one side wall of the casing for support of the elevator in depressed position in the casing, the cartridges having shell ends, said elevator having an upwardly projecting tongue at one end engaging the lowermost cartridge in the magazine, a coil spring engaging the tongue end portion only of spring moves the elevator upwardly in the casing by virtue .of the pivotal and sliding movement of the elevator between said flared end walls of the casing.
References Cited in the file of this patent UNITED STATES PATENTS 812,016 Bye Feb. 6, 1906 1,365,743 Stokke Jan. 18, 1921 1,518,831 Wright Dec. 9, 1924 2,427,304 Robbins Sept. 9, 1947 2, 20,582 Stukas Dec. 9, 1952 FOREIGN PATENTS 94,474 Germany Oct. 9, 1897