W. L.'CLAY. ARMOR PIERCING, SPOTLIGHT AND INCENDIAHY BULLET. APPLICATION FILED NOV. 20| ISIS.v

1,380,773;

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Patented June 7, 1921.

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_UNITED STATES PATENT OFFICE. WALLACE L. CLAY, OF THE UNITED STATES ARMY.

Ammon-PIERCING, SPOTLIGHT, AND INCENDIARY BULLET. 1 ,380, 7 73.

Specification of Letters Patent.

Patented June ’7, 1921.

Application ñled November 20, 1918. Serial No. 263,382.

(FILED UNDER THE ACT 0F MARCH 3, 1883, 22 STAT. L., 625.)

YTo all wiz-0m ¿t may concer/n.’

or metallic compound such as cupro-nickel, Be it known- that` I, WALLACE L. CLAY, gilding _metal, cupro-nickel steel, or the Lt. Col. Ordnance Dept., U. S. A., a citizen like, which will shatter on impact with a re of the United States, stationed at vFrankford sisting object. ' Arsenal, have invented an Improvement in _ Disposed within the shell and between its

Armor-Piercing, Spotlight, and Incendiaryv

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`sldes and the slug is a mass 12 of soft metal Bullets, of which the following is a speci such as lead, a compound of lead and anti ?ication. ~mony,.or lead and tin, or the like which 10

The invention described herein may be forms a “lubricant” for the slug.

used by the Government, or any of its oiii Dlsposed within the space between the cers or employees in prosecution of work slug 10 and the “lubricant” material 12 is a for the Government, or by any other per mass of vapor and light producing substance -son in the United States, without payment such as phosphorus, indicated at 13. of any royalty thereon.

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At its rear end the crimped in portion of

-This invention relates to combined armor the shell is provided with a 'cap 14 or guard piercing, spot light and incendiary bullets of solder or the like, to prevent the force of 70 _or projectiles, and has for one of its objects the powder charge of the iire arm from driv to produce a projectile including a slug ca mg the slug through. the shell before the

pable of piercing armor or other resisting latter reaches its objective. The action of the projectile is as follows: 75 aperture with a vapor or light producing Upon impact with an armor plate or other substance, and producing a con?lagration or hard resisting material, a flash is produced' explosion of the inflammable gas or other when fired at night or a cloud of vapor

body, coating the armor adjacent to the

substance within the objective. 25

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A combined tracer spot light and incen

when fired in the daytime, indicating to the

man firin the riíie that he has made a hit 80 diary projectile is thus produced which may on the object fired at. At the same time the be employed for all of these purposes with steel slug passes on through the armor plate, l out interference one with the other. being lubricated by the alloy around it.

With these and other objects in View the The steel slug passes through the charge invention consists in certain new and useful of .phosphorus and carries part of the phos 85 vimprovements hereinafter described and phorus with it and also coats the surface of specifically set forth in the claims, and in the armor plate at the point of impact and the drawings illustrative of the preferred coats the“ interior of the hole made by its embodiment of the invention. passing throu h the armor- plate with the Figure 1 is a longitudinal section of the phosphorus, w ich burns on contact with the 90 35 projectile complete. ' . ’ air. l, Also, part of the charge is carried on to Fig. 2 is a detached longitudinal eleva the rear of the armor plate, which in many tion of the shell or jacket. cases may be a gasolene tank, thus causing 30

I Fig. 3 is a longitudinal section of the ex losion of the same.

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blank from which the lubricating member is produced.

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The device can be manufactured 1n any `required size to fit any size of gun. The po

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Fig. 4 is a sectional detail dillustrating a sitions of lubricating and coniiagration pro

modification in the construction.

ducing elements may be transposed, aS.,

The improved projectile comprises ~a slug shown in Fi . 4, or with the element 13 in

45 10, of steel or other armor piercing metal, advance of t e element ,12, if found advan pointed at the forward end, and an inclosing shell 11 of a material which ‘will be shattered

tageous.

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Having thus described the invention what

by impact with a resisting object. is claimed as new and desired to secure by The slug 10 is retained in position by Letters Patent is: ' 50

“crimping” the rear edge of the shell over 1.v A projectile of the class described, com the slug as shown- in Fig. 1, and extends prising a slug, a shell of a material fractur

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' through the major portion of the shell leav- -_ able byl impact and inclosing the slug, a ing a space within the shell in advance of mass of relatively soft metallic substance the slug. ' ‘ Abetween' the >slug and shell, and a mass of 55

The shell ll may be of any suitable metal a light _and vapor. producing substance'be

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1,380,773

tween the slug and the soft metallic sub- ' 4. A projectile of the'class described, com~ stance. prising a slug, a shell of a material fractur

2. A projectile of the class described, com able by impact and inclosing a slug, a mass prising a slug pointed at the forward end, of relatively soft metallic substance between

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a shell of a material fracturable> by impact the slug and shell, and a mass of a light and

and inclosing the slug and pointed at the Vapor producing substance between the slug forward end, a mass of relatively soft me

and the soft metallic substance, the rear end

tallic substance between the slug and shell, of the shell being directed over the rear end the major portion of the metallic element of the slug to hold the same in position. being located within the nose of the shell, 5. A projectile of the class described, com

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and a mass of a light and vapor producing prising a slug, a shell of a material fractur

substance between the pointed end of the able by impact and inclosing the slug, a mass slug and the forward portion of the soft of relatively soft metallic substance between 15

metallic substance. 3. A projectile of the class described, com

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the slug and shell, a mass of a light and

vapor producing substance between the slug

prising a slug, a shell of a material fractur~ and the soft metallic substance, the rear enfl able by impact and inclosing the slug, a mass of the shell being directed over the rear end

of relatively soft metallic substance between of the slug to hold the same in position, and the Slug and shell, a mass of a light and a cap of relatively soft material attached to 20 vapor producing substance between the slug the rear end of the shell and slug. and the soft metallic substance, and means

:for holding the shell upon the slug.

WALLACE L. CLAY.

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