WO2001057467A1

WO2001057467A1 - Device for defusing berdan-type, or rimmed boxer-type, or rimless metal cartridge cases for all calibres

Info

Publication number: WO2001057467A1
Application number: PCT/FR2001/000278
Authority: WO
Inventors: André Ernest GEORGES
Original assignee: Georges Andre Ernest
Priority date: 2000-02-04
Filing date: 2001-01-30
Publication date: 2001-08-09
Also published as: FR2804753B1; FR2804753A1

Abstract

The invention concerns a device for defusing BERDAN-type, rimmed BOXER-type, or rimless metal cartridge cases for all calibres. It concerns a machine including a mobile hammer (1) for removing from its pocket the fired or unfired primer (23) of a cartridge case (11) without damaging same or the primer pocket. It mainly consists of a mount (103), a mobile hammer (1), a spring (19), a piston (6), a catch (17), a tool-holder (13), a tool (9), a cocking lever (3), a release handle (5) and an extractor punch (8). The machine is designed to be used by right-handers or left-handers by offsetting the lever (3) fixed on the right or on the left of the mount (103) as the case may be. The cocked mobile hammer (1), released by the slackening of the spring (19), propels the piston (6) provided with the extractor punch (8) inside the cartridge case (11), wherein a little water has been previously introduced with a dropper or a pipette, thereby compressing the water which pushes the primer into the drawer (12). The tool (9) is then removed from the tool-holder (13) and the cartridge case (11) is removed with pin punch and a starter.

Description

Berdan .Boxer, beaded, or grooved metal cartridge defusing device for all sizes.

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Technical field of the invention:

1 Invention presented is a mobile spring hammer allowing: defusing:

- metal sockets with bead or groove, for revolvers with barrels, automatic pistols and other weapons, equipped with primers of type RTCDMI or BOXER, this for any caliber, without degradation or deformation of the case and without damaging the housing of the 'primer, by combining the mechanical action of expansion of a compression spring and the action of water under pressure.

The machine is designed for the use of right-handed or left-handed users by offseting the main lever (3) fixed to the left or right of the chassis (103) as necessary. State of the prior art:

The prior art for defusing BKKDλN type sockets uses claw pliers which act in force by pressing on the edge of the socket, which very often deforms the housing of the primer which cannot be then remove. The socket therefore becomes unusable since it can no longer be recharged.

In addition, with this clamp system, the primer of the socket must imperatively be struck before the defusing operation for obvious safety reasons.

In addition, a manual defusing system with water, independent of the previous one, exists in the trade (it is called simplified manual hydraulic process}. There are also needle presses in the trade, to defuse the BOXER bushings with groove or with bead, but there is no press for BERDAN sockets.

This system has the advantage not only of efficiently and simply treating the BSRDΛN sockets but also the other types of sockets mentioned above. In addition, with the method presented, it is possible to process non-impacted sockets, and this without danger for the user. Presentation of the figures: The figure (1) shows schematically in partial section the constitution of the machine in the armed position. Figure (2) shows the introduction of the socket to defuse in the tool adapted to its caliber. Figure (3) shows the hydraulic preparation of the bush.

Figure (4) represents the extraction of the primer (23), under the combined effect of the relaxation of the spring (19) and the hydraulic action of the water under pressure. Figure (5) shows the machine in the working position. The spring (19) relaxes and propels the hammer (1) on the head of the piston (6).

The movable hammer (1), the spring (19), the piston (6), the elastic seal (61), the extractor punch (8), the O - ring seal (10), the sleeve (11), the housing of the socket in the tool (9) and the hole (24) for ejecting the primer have the same longitudinal axis. Statement of the invention:

Technical problem posed: it involves removing a primer on a BERDAN type socket, but it can also be BOXER type sockets, grooved or beaded sockets of all sizes, without degradation of the socket or deformation housing the primer during operation. The proposed system combines a mechanical action (action of a hammer moved by a spring) with the action of pressurized water, and this is what makes it specific. Procedure:

By pushing up the lever (3) articulated on the chassis (103) at A, we lift the hammer rod (14) secured to the movable hammer (1) located in the cylindrical support (102) fixed to the chassis (103 ), which has the effect strongly compressing the spring (19) in abutment on the plug (18) integral with the support (102). The walnut of the keeper

(17) relaxes with its own spring to hold the armed hammer (see Figure 1) .Manually, with your thumb and forefinger, lift the piston (6) sliding in its cylindrical support (101) using the control rod (16). The piston (6) can also be reassembled mechanically if necessary, by means of the lever (7) articulated at (B) on the lever (3) and comprising a hole (21) and a button (20). The button (20) places the hole (21) of the movable lever (7) in the piston rod (16). The lever (3) is then lifted slightly to raise the piston (6). Then screw the extractor punch (8) adapted to the size of the socket to be treated on the bottom of the piston (6). Then, from below, the sleeve (11) is positioned in the tool (9) adapted to the size of the sleeve from which the primer (23) is to be extracted, itself slipped into the tool support (13) secured to the chassis (103). Carrying out the defusing operation: Introduce a few drops of liquid (water for example) into the socket to be defused using an appropriate tool (dropper, burette, pear ...) (See figure (3 )). We take, manually, the piston rod (16) to lower the piston (6) provided with the extractor punch (8) in contact with the open surface of the sleeve (11). The lever (5) articulated at (C) is pressed forward (along E) on two flanges secured to the strike support, in order to release the strike (17) constituted by:

- a sliding nut,

- a control rod screwed into the nut, - a return spring.

The whole being housed in a square tube integral with the hammer support (102).

This has the effect of releasing the spring (19) which then propels the mobile hammer (1) on the head of the piston (6) (metal to metal shock). This shock is absorbed by an O-ring elastic (61) placed under the head of the piston (6). The piston (6) slides in the machined support (101) and returns to the extractor punch (8) the energy of relaxation of the spring (19). Figure (5) shows the machine in working situation: spring relaxation (19); the extractor punch (8) then enters the sleeve (11) and strongly compresses the liquid in place therein, the seal being ensured by an O-ring (10) placed on this punch: (see FIG. 4). This drawer, housed under the tool support (13) slides under the chassis (103).

Under the combined effect of mechanical and hydraulic actions, the primer (23) is ejected with the liquid in the drawer (12) through a hole (24) located in the axis of the socket in the chassis (103): (see figure 4). Removal from the socket:

The unit is rearmed according to the process described in the operating mode paragraph (page 3). Manually, with your thumb and forefinger, lift the piston (6) sliding in its support, using the control rod (16). This operation can also be carried out mechanically, by placing the lever (7), articulated at (B) on the cocking lever (3), in the piston rod (16), using the hole (21) made in this lever (7), by means of the button (20). The lever (3) is then lifted slightly to disengage the extractor punch (8) from the sleeve (11).

The tool set (9) is removed from the tool holder (13) and the socket (11) is removed with a defused pin and a wooden or hard rubber mallet. The operation is now complete.

Note: The machine being armed, is therefore ready again to carry out the complete process described above. However, if you want to stop the defusing work, it is preferable to put the spring (19) in the rest position. For this, we hold the lever (3) with one hand and with the other hand, the lever (5) is lightly pressed which releases the hammer (1) and the spring (19) which were retained by the keeper (17). The lever (3) held by the hand is slowly released to compensate for the energy of the spring. The machine is at rest.

The sets of tools and extractor punches are specific for each socket size.

The tool sets can also be used as a template to reset sockets of the same caliber, with an original length L greater than 1: to a dimension 1 (see Figure 2).

The depositary of this patent produced a prototype according to the specifications contained in this document.

Industrial and artisanal application:

The tool (9) can be produced for a socket of defined caliber or for two sockets (turning tool).

The tool can be produced for a series of X sockets with automatic resetting of the hammer by advancing the pitch (between axes of the sockets) on the tool, and automatic introduction of liquid into the socket. To do this, the tool (9) could be arranged perpendicular to the axis of the machine shown diagrammatically in Figures (1) or (5). The machine could then be either: manual (small series of sockets to be treated), semi-automatic (for medium series), - automated (for large series).

Claims

1- Method for defusing metal sockets (11) with bead or groove, provided with a BERDAN or BOXER primer, percussion or not, for all sizes. It is characterized in that

- by pushing up a lever (3) articulated in A on a frame (103), we just lift a hammer rod (14) secured to a movable hammer (1) located in a cylindrical support (102), which allows a nut of a keeper (17) to relax with its own spring to retain the hammer in the armed position;

- You can lift a piston (6) manually, with your thumb and forefinger, using a control rod (16), the piston sliding in its cylindrical support (101); - the piston can also be raised mechanically, if necessary by means of a lever (7) articulated at B on the lever (3);

- a socket to be defused (11) is placed in a tool the size of the socket and the assembly is housed in a universal tool holder (13);

- a few drops of water are introduced into the socket using a dropper or a pipette;

- Manually lowering by means of the piston rod (16) the piston (6) provided with an extractor punch (8) equipped with its seal (10) in contact with the open surface of the sleeve; pressing forward (E) a lever (5) articulated in C to release the strike (17) retaining the movable hammer (1) armed; - A spring (19) is thus released which propels the mobile hammer (1) on the piston head (6), the shock being absorbed by an elastic O-ring (61);

- the extractor punch (8) provided with its O-ring seal (10) is restored, the spring expansion energy (19); - Is ejected under the combined effect of actions, the primer (23) with residual water in a drawer (12) through a hole (24) made on the frame (103) in the axis of the socket. - The defused socket is recovered by removing the tool (9) from the tool holder (13) and driving it out of its housing by means of a pin punch and a mallet;

2 - Device for implementing the method according to claim 1 characterized in that the hydraulic action is obtained by pressurized water.

3 - Device according to claim 2 characterized in that the movable hammer (1), its support (102), the piston (6), its support (101), the elastic O-ring (61), the extractor punch (8) , the O-ring seal (10), the sleeve (11), the housing of the sleeve in the tool (9) and the hole (24) have the same longitudinal axis of symmetry.

4 - Device according to any one of claims 2 and 3 characterized in that the main cocking lever (3) and the movable lever (7) can be located either to the left or to the right of the chassis (103) depending on whether the user is right or left handed.

5 - Device according to any one of claims 2,3 and 4, characterized in that the automatic arming of the mobile hammer (1) is achieved by the keeper (17) consisting of a nut, a spring, d '' a rod and a control lever (5), the arming being controlled by lifting the rod (14) of the mobile hammer via the power lever (3), which has the effect of relaxing the nut strike plate to hold the mobile hammer in the armed position. 6 - Device according to any one of claims 2 to 5 characterized in that the kinetic energy stored by the power spring (19) is transmitted via the mobile hammer (1) to a piston (6), the blow being absorbed by an elastic O-ring (61).

7 - Device according to any one of claims 2 to 6 characterized in that the piston (6) can be raised, either manually using the piston rod (16), or mechanically by means of the lever (7) articulated in (B) on the cocking lever (3) and comprising a hole (21) and a manipulation button (20).

8 - Device according to any one of claims 2 to 7 characterized by a universal tool holder (9) in which are housed the specific tools (13), for each size of socket.

9 - Device according to claim (8) characterized in that the specific tools (9) allow to reset to dimension 1 sockets of the same caliber and of different length L greater than 1.

10 - Device according to any one of claims 2 to 9 characterized in that it comprises a drawer (12), housed under the tool support (13) and sliding on the frame (103), this drawer being intended to receiving the primer (23) removed from the socket (11) and the residual water, via a hole (24) made on the frame (103), in the axis of the socket.