Patent SK-9336-Y1 (SK)
Title: Automatic breech of initiators of powder charge of large-caliber cartridge-free ammunition
Inventor: UŠIAK ROMAN
IPC: F41A3/64
Filed: 2021-02-10
Abstract: The initiators (24) are housed in beds (2) which are connected by a wire (20) to an endless belt, the beds (2) fitting into recesses of a tensioning pulley (1) and an auxiliary pulley (5), where both pulleys ( 1) and (5) are screwed to the brackets (11, 12) and a bracket (4) by means of the screws (18) and the pins (9) on which they are rotatably mounted, the brackets (11,12) are screwed directly to a beam (3) by means of the screws (23). The bracket (4) is mounted to the beam (3) together with the washers (10), then a latch (6) with a spring (7), the beam (3) is screwed into the body (13) together with other accessories by means of the screws (22). The body (13) protects the mechanisms of the container (7b) from contamination. There are three oval grooves in the body (13) of the container (7b); into which the latches (6) of the belt slider for moving the belt fit, an insert (16) is fastened to the body (13) by means of the rivets (21), to secure the body (13) of the aluminium alloy container (7b) against wear during insertion and disassembly of a breech (1´). A back cover (14) is screwed to the body (13) by means of the screws (17) and is also fixed to the beam (3) by means of the screws (22), between the body (13) and the back cover ( 14) is an insert (16) for adjusting the path of the initiators (24) when clamping the endless belt of the beds (2), then the breech (1´) of the initiators (24) forms a support part. In the side recesses of the breech (1´) are inserted locks (2´) and (3´), to lock it during shot by means of surfaces (X), then the fuse (4´) with spring (8´) is placed in the breech (1´) and the bolt (5´) is in contact with the locks (2´) and (3´) to lock them, then the extractor (7´) is placed on the pin (6´) and pushed away by a spring (9´) to pull the cartridge of the fired initiator (24) out of the charge chamber. The body (2a) of the belt slider is a support part and comprises a cover (1a) for protection against dust, latches (3a) with springs (9a) being mounted on the pins (10a) in the slider (11a) to ensure the correct position of the latches (3a) to catch the belt, then there is a seat in the bracket (5a) a separate latch (3a) with a spring (9a) to prevent the initiators (24) from moving backwards during stretching. The spring (4a) is mounted on a mandrel (7a) and the link is mounted on a lever (8a), the lever (8a) being locked a latch (13a) with a spring (14a) and on the opposite side a circlip (19a), where the breech (1´) of the initiators (24) is part of the sliding bolt barrel, to seal and lock the barrel of the artillery system during shot. The breech (1´) is locked by two sliding segments (1´´) into one unit, then the front part (8b) of the breech (1´) forms a support surface for locking segments of the back part of the barrel, in front there is a sealing ring, for sealing mainly during a shot, in the back there is a chamber for the initiator (24), then the carrier (5b) of the breech (1´) forms a supporting and guiding part for the individual groups, the breech (1´) of the initiators (24) being for inserting the initiator (24) into the barrel and returning it empty to the magazine (7b). The slider (2b) is in contact with the breech (1´) of the initiators (24), to change the rotational movement to sliding movement of the breech (1´), then the firing lever (3b) is connected to the drive of the breech (1´) of the initiator (24) to the firing mechanism in the back part of the barrel, in the magazine (7b) there is a belt slider (4b) for feeding a new of the initiator (24), the cover (6b) being a closed space of the mechanisms of the breech (1´) of the initiators (24) in a carrier (5b) of the breech (1´).