Firearms – Cattle slaughter type
Patent
1987-03-16
1988-07-19
Kyle, Deborah L.
Firearms
Cattle slaughter type
17 1B, 42 36, A22B 302
Patent
active
047576278
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Well-known are the so-called slaughtering pistols or instruments which, by means of blank cartridges, cause a stiletto shaped projectile to emerge for several centimeters which penetrates deeply into the animal's brain which remains fatally injured thereby.
Some types are tube shaped with no hand grip and consequently difficult and unreliable to use. Other types comprise a screwed-on breech block which, though fairly safe, is slow and awkward in use.
Hinged breech blocks, especially those having transversal articulations, are in most cases manually closed by an external lever, movement of which is unreliable and unsafe. The trigger is generally placed high up on the hand grip so that the strongest fingers, like the index and middle fingers, are engaged with pressing it, and maximum strength cannot therefore be exerted by the other fingers on the hand grip itself.
In other types still the percussion pin acts on the cock through a complex series of interacting levers which make operation unreliable and faulty.
The way in which the various parts are balanced is inadequate to absorb the effect of recoil thus creating considerable problems for the operator.
The whole travel of the projectile generally determines a compression of rubber shock absorber pads with the result that final pressure of the projectile is greatly reduced and consequently is often insufficient.
The holes for gas outlet are usually too large which further decreases shooting power.
Tall horses pose the operator with considerable problems in correctly gripping the pistol.
The numerous complex parts both inside and outside the pistol require a great deal of lubrication with the risk of some of them, especially the percussion pin, becoming stuck fast in cold weather.
Construction of the barrel, breech and pistol grip in different parts associated together, often creates problems of precision.
The under part of the breech block is often so low, in relation to the grip, as to cause it to hit the operator's wrist should the animal suddenly raise its head.
The above invention avoids the above drawbacks as well as providing considerable advantages as will be explained below.
SUMMARY OF THE INVENTION
The present invention is a slaughtering pistol having a captive projectile and hinged breech block comprising an internal balancing lever whose posterior head is kept, by means of a spring also inside the breech block, on the trajectory of a gripping means fixed to the percussion pin. The upper front of the lever is shaped as a tooth and the like turned upwards having opposite it, at a very short distance, a tooth or the like, turned downwards on the breech. The lower front of the lever is a convex ridge which, when the breech block is closed, is practically in contact with the end of an arm fixed at its top to an oblong body which articulates in proximity to the arm itself inside the pistol grip.
The lower end of said oblong body, projecting from an aperture in the hand grip, acts as the trigger.
By pulling the percussion pin, its gripping means couples onto the posterior head of the breech block lever, with consequent cocking, but with the breech block closed, the percussion pin is only released by pressing the trigger. The first part of the trigger's travel, due to movement of the extremity of its upper arm, causes the front part of the breech block lever to move sufficiently to lock the breech block's tooth into the tooth of the breech and this locks the breechblock.
A further part of the trigger's travel brings about a more extended coupling of the above teeth, lowering of the posterior head of the lever which becomes detached from the percussion pin's gripping means, with release of the percussion pin towards the cartridge which consequently explodes. The percussion pin substantially consists of a small cylindrical rod with a percussion tip, a gripping means that is formed of a disk fixed to the rod in proximity to its tip, and a cylindrical spiral spring placed round the rod. The spring determines a reaction between
Carone Michael J.
Kyle Deborah L.
Striker Michael J.
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