FR2804753A1 - DEVICE FOR REMOVING BERDAN, BOXER, BOURRELET OR GORGE METAL SLEEVES, FOR ALL SIZES - Google Patents

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

TECHNICAL FIELD OF THE INVENTION The invention presented is a spring loaded mobile hammer for defusing - metal bushings or throat, for barrel revolvers, automatic pistols and other weapons, equipped with primers BERDAN type <B > or </ b> BOXER, this for any caliber, without degradation or deformation of socket and without damaging the housing of the primer, combining the mechanical action of expansion of a compression spring and the action of the water under pressure.

The machine is intended for the use of right-handed or left-handed by deporting 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 the defusing of BERDAN type sockets uses a claw clamp which acts in force by pressing on the rim of the socket, which has the effect of very often deforming the housing of the primer that it can not be removed. The socket becomes unusable because you can not recharge it.

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

Furthermore, a water defusing system, manual independent of the previous, exists commercially (it is called simplified manual hydraulic process).

There are also commercial needle presses to defuse BOXER throat or bead sockets, but there is no press for BERDAN sockets.

This system has the advantage not only of dealing effectively and simplicity BERDAN bushings but also the other types of sleeves mentioned above. Moreover, with the process presented, it is possible to process non-impacted sockets, and this without danger for the use of them.

Presentation of Figures Figure (1) shows a schematic partial section of the constitution of the machine in the armed position.

Figure (2) shows the introduction of the bushing to be defused in the tool adapted to its size.

Figure (3) shows the hydraulic preparation of the bushing.

Figure (4) shows the extraction of the primer (23) under the combined effect of the expansion of the spring (19) and the hydraulic action of the pressurized water.

Figure (5) shows the machine in working position. The spring (19) relaxes and propels the hammer (1) on the piston head (6).

movable hammer (1), the spring (19), the piston (6), the spring ring (61), the extracting punch (8), the O-ring (10), the bushing (11), the housing of the socket in the tool (9) and the hole (24) of ejection of the boot have the same longitudinal axis.

 Presentation of the invention Technical problem <I> posed: </ I> it is to remove a primer on BERDAN type socket, but it can also be BOXER type sockets, sockets throat or bead of any calibres, without degradation of the sleeve or deformation housing of 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 that is what makes it unique.

<I> Procedure </ I> By pushing up the lever (3) articulated on frame (103) at A, the hammer rod (14) secured to the mobile hammer (1) located in the cylindrical support is lifted (l02) fixed to the frame (103), which has the effect of strongly compressing the spring (19) in abutment on the plug (18) integral with the support (102). nut striker (17) relaxes with its own spring to retain the hammer armed (see Figure 1) .Manually with the thumb and index finger is raised the piston (6) sliding in its cylindrical support (101) with the help of the control rod (16). The piston (6) can also be raised mechanically if necessary, by means of the lever (7) articulated in (B) on the lever and comprising a hole (21) and a button (20). The button (20) makes it possible to place the hole (21) of the mobile lever (7) in the piston rod (16). The lever (3) is then slightly raised to lift the piston (6). Then screw the extractor punch (8) adapted to the caliber of the sleeve to be treated on the bottom of the piston (6). Then, from below, the bushing (11) is positioned in the tool (9) adapted to the caliber of the bushing from which it is desired to extract the primer (23), itself slid into the tool support (13). secured to the frame (103).

 Realization of <I> the operation </ I> of defusing One introduces a few drops of liquid water for example) in the socket to be defused with the aid of appropriate tool (dropper, burette, pear ...) ( See figure (3)).

The rod of the piston (16) is manually taken to lower the piston (6) provided with the extracting punch (8) in contact with the open surface of the sleeve (11).

The lever (5) articulated at (C) is pressed forwardly (following E) on two flanges integral with the striker support, in order to release the striker (17) constituted by a sliding nut, a control rod screwed into the nut, - a return spring.

all 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 moving hammer (1) on the piston head (6) (shock metal on metal). This shock is damped by an elastic O-ring (61) placed under the piston head (6).

The piston (6) slides in the machined support (101) and restores to the extracting punch (8) the relaxation energy of the spring (19).

Figure (5) shows the machine in a work situation. spring detent (19); the extracting punch (8) then enters the sleeve (11) and strongly compresses the liquid in place therein, the sealing being provided by an O-ring (10) placed on this punch: (see Figure 4). Under the combined effect of mechanical and hydraulic actions, the primer (23) is ejected with the liquid in the spool (12) through a hole (24) located in the axis of the bushing in the float (103). : (see Figure 4). This drawer, housed under the tool support (13) slides under the frame (103).

 Removal of the <I> bushing </ I> The assembly is rearranged following the process described in the operating procedure (page 3).

Manually, with the thumb and the index finger, the piston (6 sliding in its support, with the help of the control rod (16)) can also carry out this operation mechanically by placing the lever (7) articulated in ( B) on the lever (3), in the piston rod (16), using the hole (21) in this lever (7), by means of the knob (20).

The lever (3) is then slightly raised to disengage the extracting punch (8) from the sleeve (11).

The tool set (9) is removed from the tool holder (13) and the socket (11) is defused with a pin punch and a mallet made of wood or hard rubber.

The operation is now complete.

<I> Note </ I>: The machine is armed, so it is ready again for the complete process described above. However, if you want to stop the defusing work, it is better to put the spring (19) in the rest position. For this, hold the lever (3) with one hand and with the other hand, press slightly on the lever (5) which releases the hammer (1) and the spring (19) which were retained by the striker ( 17). The lever (3) held by the hand is released slowly to compensate for the energy of the spring. The machine is at rest.

Extractor tool and punch sets are specific for each bushing gauge.

Tool sets can, us, serve as a template for resizing 1 sockets of the same caliber, an original length L greater than 1: (see Figure 2).

The custodian of this patent has made a prototype according to the specifications contained in this document.

 Industrial application <B> and </ B> Craftwork The tool (9) can be realized - a sleeve of defined caliber or for two sockets (turning tool).

The tool can be made for a series of X bushings with automatic reset of the hammer by advancing the pitch (between pins of the bushes) on the tool, and automatic introduction of liquid into the bushing. To do this, the tool (9) could be arranged perpendicular to the axis of the machine shown schematically 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)

 CLAIMS l- Process for defusing the metal sleeves (11) with bead or groove, provided with a BERDAN BOXER primer, impacted or not, for all calibres. It is characterized in that - by pushing up a lever (3) iculated at A on a frame (103), a hammer rod (14) integral with a movable hammer (1) is lifted. cylindrical support (102), which allows a nut of a striker (17) to relax with its own spring to hold the hammer in the armed position; - A piston (6) can be raised manually with thumb and forefinger by means of a control rod (16), the piston sliding in its cylindrical support (101); - We can also remount the piston mechanically, if necessary by means of a lever (7) hinged on the lever (3); a socket to be defused (11) is placed in a tool of the caliber 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 pipette; - the piston (6) with a punch, extractor (8) equipped with its seal (10) in contact with the open surface of the sleeve is lowered manually by means of the piston rod (16); a lever (5) hinged at C is pressed forwards (E) to release the striker (17) holding the armed hammer (1) armed; thereby releasing a spring (19) which propels the movable hammer (1) on the piston head (6), shock being cushioned by an elastic O-ring (61); the extracting punch (8) provided with its O-ring seal (10) is restored with the relaxation energy of the spring (191); the primer (23) is ejected under the combined action action with the residual water in the drawer (12) through a hole (24) made on the frame (103) in the axis of the socket. the defused bushing is retrieved 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 carrying out 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 (i01), the elastic O-ring (61), the extractor punch (8) the seal (10), the socket (11), the socket housing 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 characterized in that the main arming lever (3) the movable lever (7) can be located indifferently left or right of the frame (103) depending on the user is right-handed or left-handed. 5 - Device according to any one of claims 2,3 and 4, characterized in that the automatic arming of the movable hammer (1) is formed by the striker (17) consisting of a nut, a spring, a rod and a control lever (5), the armament being controlled by raising the rod (14) of the mobile hammer via the power lever (3), which has the effect of relaxing the strike nut to hold the moving 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 damped 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 (D) on the cocking lever (3) and. having 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 sleeve of iber. 9 - Device according to claim (8) characterized in that the specific tools (9) allow to resize 1 sockets of the same caliber and different length L greater than 1. 10 - Device according to any one claims l 2 to 9 characterized in that it comprises a slide (12), housed under the tool support (13) and sliding on the frame (103), this drawer being intended to: receive the primer (23) removed from the sleeve (11) and the residual water, via a hole (24) formed on the frame (103), in the axis of the sleeve.