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(11) | EP 1 705 450 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Detachable tubular magazine for a firearm |
| (57) Magazine tube containing cartridges that is detachable from the firearm. The set
consists of a receiver base (1) for the magazine tube (2). The rear end is screw shaped
for attaching to the receiver frame of the firearm, the other end has a mechanism
to lock the magazine tube in place by means of spring loaded catch. The magazine tube
(2) contains a cartridge feeding spring (6) with stop collar. The magazine tube mouth
has tapered collar that blocks the cartridge from ejecting unless the collar is pressed
into the receiver base.
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Field of knowledge concerning the invention
Description of the prior art
[0002] Figure 4 shows ordinary firearm today that has receiver frame (31) that contains firing mechanism inside, with feeding port (32) at the side to feed cartridge into the receiver frame (31).
[0004] Front end of the receiver (34) has an exit port for the bullet/pellets from the receiver frame (31) through the barrel (35) and the lower portion of the barrel (35) has fore-end grip (36) for holding while operating the firearm.
[0005] The firearm described above can be fired and reloaded one shot at a time, wasting a lot of time to reload resulting in discontinuity of firing.
Purpose of the invention
[0006] The invention concerns magazine tube that can be detached from the firearm, consisting of a magazine tube containing cartridges that is detachable from the firearm, The set consists of a receiver base for the magazine tube. The rear end is screw shaped for attaching to the receiver frame of the firearm and the other end has a mechanism to lock the magazine tube in place by means of spring loaded catch. The magazine tube contains cartridge feeding spring with stop collar. The magazine tube mouth has tapered collar that blocks the cartridge from ejecting unless the collar is pressed into the receiver base.
[0007] The purpose of the invention is to provide a receiver base that is attached to the firearm's frame allowing the magazine tube to be attached and detached quickly, increasing the rate of fire for continuous firing.
Brief description of the illustrations
[0008]
Figure 1 shows the magazine tube set of this invention.
Figure 2 shows the magazine tube set of this invention and the firearm.
Figure 3 shows the magazine tube set as attached to the firearm,
Figure 4 shows an embodiment of the firearm.
Detailed Disclosure of Invention.
[0009] Figure 1 shows component parts of magazine tube containing cartridges that is detachable from the firearm, consisting of.
[0010] Receiver base (1) to accept the insertion of the magazine tube (2) of which is screw shaped (3) at one end or as an attachment set (not shown) for attaching to the opening. (20) of the receiver's frame (17) (as in Figure 2).
[0011] At one end is a holding mechanism (4) for locking the magazine tube (2) that can be attached or detached. Split tube (5) inside will hold the installation ring (24) of the barrel (22) (as in Figure 2) by means of mechanical lock.
[0012] Split tube (5) that can be taken apart and reassemble to form tube shape after placing inside the holding mechanism (4).
[0013] The magazine tube (2) is a tube with feeding spring (6) inside to push cartridges out through releasing mechanism (7) of which the inside of one end is a catch shoulder blocking the feeding spring (6) and the cartridges from ejecting out of magazine tube (2).
[0014] Screw groove (8) is machined to the external surface of the magazine tube (2) to provide distance adjustment for the adjustment ring (9).
[0015] The magazine tube (2) has external coil spring (10) installed to assist ejection of the magazine tube (2) when released from the receiver base holding mechanism (4).
[0016] The other end of magazine tube (2) has internal screw groove (not shown) to accept attachment of the releasing mechanism (7).
[0017] Releasing mechanism (7) consists of lock-tube (11) that is inserted inside the external tube (12). The tube has one end that is screwed shaped (13) or as an attachment (not shown) to one end of the magazine tube (2) by means of mechanical lock.
[0018] The other end of the lock-tube (11) is a number of finger-locks (14) having a slight curvature to hold and prevent cartridge from ejecting from the magazine tube (2) while the external tube (12) is pressed with tube-spring (15) to hold against finger-lock (14) and the inside of the lock-tube (11) has a push rod (16) that is meant to send the next cartridge into the receiver base (1).
[0020] The set consists of receiver base (1) that is placed inside the channel (18) of the fore-end grip (19) which is screw shaped (3) at one end or as an attachment set (not shown) for attaching to the opening (20) of the receiver's frame (17) by mean of mechanical lock.
[0021] At one end is a holding mechanism (4) for locking the magazine tube (2) that can be attached or detached, Split tube (5) inside will hold the installation ring (24) of the barrel (22) by mean of mechanical lock.
[0022] The magazine tube (2) is a tube with feeding spring (6) inside to push cartridges out through releasing mechanism (7) of which the inside of one end is a catch shoulder blocking the feeding spring (6) and the cartridges from ejecting out of magazine tube (2).
[0023] Screw groove (8) is machined to the external surface of the magazine tube (2) to provide distance adjustment for the adjustment ring (9).
[0025] External coil spring (10) assists ejection of the magazine tube (2) when released from the receiver base holding mechanism (4).
- Receiver base (1) for magazine tube whose one end is an opening for inserting the magazine tube (2), the other end being attached to the opening (20) of the receiver frame (17) by means of mechanical lock;
- Magazine tube (2) as a tube for inserting into the receiver base (1), the tube having
cartridge feeding spring (6) inside the tube (2) at which the tube mouth has a cartridge
releasing mechanism (7). The other end of the magazine tube is blocked to hold cartridge
inside. Screw groove (8) is machined to the external surface of the magazine tube
(2) to provide distance adjustment for the adjustment ring (9);
characterized in that:
- At one end of the receiver base (1) is a holding mechanism (4) for adjustment ring (9) of the magazine tube (2) by means of mechanical lock that is removable. Inside of this device is split-tube (5) to hold the installation ring (24) of the barrel (22);
- The magazine tube (2) has external coil spring (10) installed to assist ejection of the magazine tube (2) when released from the receiver base holding mechanism (4);
- Holding mechanism (7) consists of lock-tube (11) that is inserted inside the external tube (12), The tube has one end that is attached to one end of the magazine tube (2) by means of mechanical lock and the other end of the lock-tube (11) is a number of finger-locks (14) that has slight curvature to hold and prevent cartridge from ejecting from the magazine tube (2) while the external tube (12) is pressed with tube-spring (15) to hold against finger-lock (14) and the inside of the lock-tube (11) has a push rod (16) that is meant to send the next cartridge into the receiver base (1).