US3392469A - Method of operating a revolver for shooting a projectile attached on the outside of the barrel thereof - Google Patents

Description

July 1 1968 u. DUBINI METHOD OF OPERATING A REVOLVER FOR SHOOTING A PROJECTILE ATTACHED ON THE OUTSIDE OF THE BARREL THEREOF Flled June 6, 1966 N Hum ABSTRACT OF THE DISCLOSURE The method of operating a firearm including loading a blank cartridge into the firearm, placing a cup-shaped projectile around the outside of the barrel of the firearm and firing the firearm to project the cup-shaped projectile.

The object of the present invention is to provide a method of operating a firearm for projecting a cup-shaped projectile disposed on the outside of the barrel of the firearm.

More particularly, the object of the present invention is the operation of a revolver characterized by being provided with a barrel adapted for shooting a cup-shaped bullet, which is closed at one end and seated on the outside of said barrel, the powder or propelling charge being formed of a blank cartridge.

There-fore, the principle constituting novelty resides in the fact that, while projectiles are generally shot from the inside of the barrel, the firearm of this invention carries a projectile externally enclosing the barrel itself.

In view of this, the cylindrical portion bearing the projectile (which will be referred to as the barrel) may be of varying diameter and length according to the firearm to be used for definite purposes.

The accompanying drawing shows by way of example a revolver for use with the present invention, and more particularly:

FIG. 1 is a side view of the revolver, wherein a bullet is schematically shown in a dash-line;

FIG. 2 is a detailed view of the revolver in FIG. 1 with a bullet formed of an empty cartridge-case disposed on the revolver barrel.

Referring to the figures, it will be appreciated that the revolver for use with the present invention, has a barrel 1 with a cylindrical outer surface, which is adapted for shooting a substantially cup-shaped bullet 2, closed at one end and seal-threaded or glidably engaged on the outside of said barrel. The powder or propelling charge is given by a known blank cartridge. Obviously, the closer the cartridge fits the barrel, the more propelling force is provided as the gasses endeavor to escape. The word sealthreaded is used in the sense of the cartridge being tightly pressed on the barrel, but whether sealing is employed or not, the invention operates satisfactorily. The bullet 2 glides over the barrel for the full length of the barrel nited States Patent itself so that the gas pressure operates for a longer time, i.e., corresponding to the time that the open end of the bullet takes to leave the muzzle end of the revolve-r. In this way a stronger propelling force is obtained and there- 5 fore a greater throwing distance, If the bullet has an inner diameter greater than the outer diameter of the barrel, there is no longer a gas-tight seal, and in such situations it is better to use a blank cartridge of greater power in order to obtain a good throwing distance. Normally, the bullet is anticipated to be a cartridgecase 2 of a shot hunting-cartridge. Said cartridge-case 2 is seal-threaded on barrel 1, as shown in FIG. 2.

The major use of the revolver according to the invention is for shooting shot cartridge-cases as targets for new shots in replacement of a clay-pigeon, since hunters always have shot cartridge-cases at their disposal. However, other uses of the present invention are also anticipated, it being even possible to use cartridge-cases even of a different diameter and blank cartridges of a greater power.

It is anticipated, for example, that a firearm for use with the present invention could serve for sporting targetfiring since the cartridge-case being shot therefrom may be frontally provided with a suction cup or a tip.

Another use of the present invention is for projecting light fishing-lines to significant distances by attaching the fishing-line to the empty cartridge-case, as illustrated in phantom in FIG. 1, so that it would unhook on contacting the water.

Obviously, the shooting power may be adjusted by us- 30 ing more or less powerful blank cartridges; moreover, said shooting power may be modified by narrowing or by enlarging the cartridge chamber within the firearm barrel; under the same cartridge power, by enlarging the cartridge chamber, pressure and hence also throwing distance will be reduced.

What is claimed is:

1. The method of operating a firearm for projecting a cup-shaped projectile therefrom comprising the steps of loading said firearm with at least one blank cartridge, inserting the barrel of the firearm into the cup-shaped projectile and firing the firearm.

2. The invention of claim 1 wherein said cup-shaped projectile has a line attached thereto.

References Cited BENJAMIN A. BORCHELT, Primary Examiner.

SAMUEL FEINBERG, Examiner.

T. H. WEBB, Assistant Examiner.

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