AU3856993A

AU3856993A - Electrical air rifle

Info

Publication number: AU3856993A
Application number: AU38569/93A
Authority: AU
Inventors: Ian Benjamin Short
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-26
Filing date: 1993-05-10
Publication date: 1993-12-02

Description

A Description (1) A description relating to the preferred form of the invent)on, is that rifles be made with in standard specifications. For a (R.IF') to compete against 22 cal or 177 cal weighing under 5 and a half kg etc, I turn in 17" for 30 GR projectile with a air pressure of 200 PSI? until the projectile clears the muzzle for a 22 cal. The preferred form of the rifle is the components be incased in a strong brightly coloured synthetic stock. Parts of the stock coming into contact with the hands in shooting positions be non slip and be stream lined border line. The trigger mechanism be removable by two screws, possibly an electrical trigger with a relay switch. Target rifles be 113 cm in length, with long dove tails for sights etc. The rifle comes in a colourful box.

A Description (2) A description relating to the preferred form of this invention.

A button is pressed, power from portable batteries at 11.1 volts (fig 1) turning an electrical air compressor on 20 mm stock and mm piston. Gearing 6 to 1 (fig 2) air is drawn through a ventilated cheek piece, the compressed air goes in to a large d.iaphram reservoir under the barrel (fig Then into a one way valve (fig 4) into a 40 mm cylinder (fig Then into a one way valve into a 40 mm cylinder (fig stopping at an isolating valve. At sufficient air pressure the compressor's electric power is turned off. A handle near the breech is pulled back and pushed forward 10 mm (fig 6) releasing and sealing a wet hydraulic's (fig 7) and Clain no 5. The rifle bolt is lifted and pulled back 110 cm and just clearing the cheek piece. This action also primes the hydraulic's under the bolt for the full backward stroke. A projectile is put in the breech as a small lever is flicked to one side opening the isolating valve, allowing air into a 10 mm chamber stopping at a valve at the breech and it will ket a lot more pressurised air in and is set at a pre-determined pressure before it isolates itself. The bolt is pushed forward cocking the firing pin, the remote control (fig 7 pushes the hydraulic's by remote control which is also pushing Sa, piston (fig 9) in the 40 mm cylinder (fig 5) into the 10 mm firing chamber, any excessive pressure is let out of either chamber by a release valve.

A Description (3) To shoot the rifle. The trigger is pulled. At this point a longer than normal firing pin is pushing the discharge valve at the breech allowing compressed air to push the projectile, the firing pins strong spring such as a mark 3.303 is still travelling, pushing the discharge valve but unlike a R.F or C.F at the end of its 20 cm travel the firing pin remains all the way out so the isolated reservoir is completely drained up the bore.

The projectile might clear the muzzle before the firing pin stops its travel.

To shoot again, pull the lever back and forward, open the bolt, put a projectile in, flick the little lever, close the bolt and shoot. Repeat until you have to turn the electrical power on to recharge the main reservoir. Let out the excess air in the reservoir by th rvar_ t q VI vLr r When finished shooting, wipe with an oiled rag.

batteries on charge.

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