US1337343A - Spot-light bullet - Google Patents

Description

W.'L. CLAY AND A. H. HALLOWELL, SPO'I'. LIGHT BULLET.

, APPLICATION FILED JAN-30,1919. v

1,337,343. Patented Apr. 20,1920.

. vide a device of this character havin UNITED STATES PATENT OFFICE.

WALLACE L. CLAY, OF THE UNITED STATES ARMY, AND ANDREW FBANKFORD, PENNSYLVANIA.

H. HALLOWELL, OI

SPOT-LIGHT BULLET.

Specification of Letters Patent.

' Patented Apr. 20, 1920 Application filed January 30, 1919. Serial No. 274,077.

(FILED UNDER THE ACT OF MARCH 8, 1883, 22 STAT. L, .625.)

in the United States, without payment of any royalty thereon. his invention relates to a device for denoting the location of an objective for a fire arm, to enable a gunner to so aim or adjust the fire arm as to accurately place the shot, and has for one of its objects to provide a device adapted to be projected from a fire arm and capable, when it strikes an obstruction, of emitting a vapor like cloud and a flash of light, the vapor being visible when the device is fired in the dayt1me and,

the flash visible when fired at night.

Another object of the invention is to promeans whereby the vapor and light producing element is forced from the projectile by' the force generated by the impact against an obstruction.

With these and other objects in view the invention consists in certain new and useful construction and combination of parts as will hereinafter be more fully described and pointed out in the claims.

In the drawings Figure 1 is a longitudinal sectional elevation.

Fig. 2 is a longitudinal section of the jacket portion of the improved device.

Fig. 3 is a view of the movable base from one side.

Fig. 4 is a view of the movable base plug at right angles to the view shown in Fig. 4.

The improved device comprises a jacket represented as a whole at 10, and including a pointed forward end 11. v

The jacket is formed initially with its rear end open as shown in Fig. 2, and provided with a-base plug, the plug being secured in place by spinning the materialv of the plug The plug is further. secured in place b a cap 15 of solder or the like, to-prevent eformation when fired.

At its forward end the plug 12 is reduced or wedge shaped as represented at 16, and is constantly embedded at its reduced end in the charge 14.

The reduction of the forward end of the plug also produces chambers or cavities 17 into which the material of the charge 1 4 may expand due to the heat generated by the passage of the device through a gun barrel. i

A plurality of apertures 18 are formed through the reduced portion 11 a short distance rearwardly of the nose, and initially closed by a substance which is fusible under relatively low temperature, for instance a soft solder, and in practice a compound is employed whose melting point is such that it will be partly melted by the heat generated by the passage of the device through the barrel of the gun but will not melt out until the device reaches its objective when the impact will jolt. the partly melted closures from the apertures and permit the phosphorus or other charge substance to vaporize and escape through the apertures as a visible smoke like emanation by daylight and a flash by night. By this means the point of impact is disclosed to the gunners either by daylight or at night.

At the moment of impact the base plug 12 will be detached from the cap 15 and thrown toward the forward or pointed end of the jacket, and operates as a plunger to force the charge 14 through the apertures, and thus materially increase the efiiciency an utility of the device.

The jacket 10 may be of any required size and capacity and thus adaptable to gun barrels of any gage.

By employing the improved device the end closed by fusible elements, a base plug weakly secured within the. rear of the jacket, and a charge in the bodyof the jacket of a substance capable of ejecting a visible vapor and a flash of light through the apertures.

2. A device of the class described comprising a pointed jacket Withapertures in the pointed portion near the forward end and adapted to contain a medium capable of producing visible vapor and a flash of light when exposed to theair through the apertures, and a plug weakly secured in the rear end of said jacket having a wedgeshaped forward end.

3. A device of theclass described including a jacket adapted to contain'a substance capable of ejecting visible vapor and producing a flash of light, said jacket having lateral openings, closures for the openings which are partially fusible by the heat generated by the passage of the projectile through a gun barrel and adapted to be ejected by the impact of the projectile against its objective, and a plug weakly secured within the jacket in constant contact with the vapor and light producing substance and movable longitudinally of the jacket upon said impact to force the vapor and light producing substance through the apertures.

erated by the passage of the projectile through a gun barrel and adapted to be ejected by the impact of the projectile against its objective, and a plug weakly secured within the jacket and reduced at the forward end, said plug being in constant contact at its forward end with the vapor and light producing substance and movable upon said impact longitudinally of the jacket to force the vapor and light producing substance through the apertures.

WALLACEL. CLAY. ANDREW n. HALLOWELL.

Images