US2072621A - Gas gun - Google Patents

Description

March 2, 1937. 5, GAGLE 2,072,621

GAS GUN Filed Nov. 7, 1934 JjyJ,

INSULRTIUN W [a War/ i276. 4 a 5* ATTO R N EY Patented Mar. 2, 1937 UNITED STATES PATENT OFFICE 1 Claim.

The invention relates to a gas gun and more particularly to an electric tear gas gun.

The primary object of the invention is the provision of a gun of this character, wherein the same is serviceable in a bank or other place having valuables, or the same may be utilized by employees of a bank, messengers and others handling or carrying valuables, for protection against loss of the same, the gun in its make-up being of novel construction.

Another object of the invention is the provision of a gun of this character, wherein the construction thereof permits of permanent installation and is readili and easily adjusted according to the needs thereof, being simple in its make-up, reliable and efficient in its operation, and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in the features of construction, combinationand arrangement of parts as will be hereinafter more fully described in detail, illlustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure l is a rear elevation of the gun constructed in accordance with the invention.

Figure 2 is a front elevation thereof.

Figure 3 is a top plan view.

Figure 4 is a side elevation partly in section and showing diagrammatically the ignition circuit.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, the gun comprises a cylindrical barrel 5 in the form of a tube approximately six inches long having the externally threaded breach end 6 for the separable connection therewith of a cap 1, in the form of a gland nut provided with flat wrench-engaging surfaces or a nut-like external formation 8. The cap 1 is cut away to provide an inturned circular flange 9 for the holding of a shell which consists of a thin metal tube Ill aproximately three inches long and in the end of which is secured a bakelite piece II, the latter at its outer end being seated against the flange 9 of the cap, and this shell 10 snugly fits within the exploding or breach end of the barrel 5. Within the shell is an exploding charge I! and a tear gas content I3, the exploding charge l2 being next to the bakelite piece I I. It is preferable to have the shell at the end connected with the piece H provided with the annular rim M in the form of a right angled flange which is clamped against the breach end of the barrel 5, so that when the cap I is applied the shell will be held fixed within the barrel by the flange 9.

Fitted centrally in the bakelite piece H is a .headed bolt I5 and under the head of this bolt is fastened a double prong igniter IS, the prongs of which are used to insure prompt and quick firing of the charge i 2. A jam nut 23 on the igniter l5 bearing against the piece ll secures the igniter in position.

Formed with the barrel 5 is a supporting ear l'l having adjustable connection through the medium of the winged nut pivot I8 with a substantially L-shaped bracket [9, the same being adapted for fixed connect-ion with a suitable sup-port. By the use of the pivot l8 the barrel 5 can be adjusted for vertical angular disposition or true to a horizontal plane.

For firing the assembled gun with its shell loaded an induction coil 20 is employed with the copper wound secondary insuring a spark with good intensity, the lead 2| from the coil being attached to the bolt I5 which affords a permanent connection and the other lead 22 from the coil is grounded to the barrel of the gun. When voltage is applied to the induction coil 20 a high frequency spark will be produced between the metal shell of the barrel and the prongs of the igniter I6, thus exploding the shell II].

It may be advisable to employ two induction coils connected in parallel so that in event that one coil should fail to function, the other coil will, and the voltage required would range from six to nine volts direct current. of course, it is to be understood that in lieu of the bakelite piece ll, other insulating medium may be employed.

The shell 10 is introduced into the barrel 5 through the capped end thereof and expulsion of the tear gas i3 is had through the opposite open end of such barrel.

What is claimed is:

A gun of the character described comprising a cylindrical barrel of uniform size in cross section throughout its length and having an externally threaded open end, an ear formed externally on said barrel, a bracket having the ear swingingly connected thereto, a centrally perforated cap in threaded engagement with the threaded end of said barrel and having flat wrench engaging surfaces externally thereof, the cap being cut away to provide an internal circular flange for the holding of a shell seated against the externally threaded end of said barrel, a bakelite piece secured within the cap and having fitting with the shell, a headed bolt fitting said piece, and a double prong igniter on the inner end of said bolt and within the shell for ignition of its explosive content.

MERLIN S. GAGLE.

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