US308944A

US308944A - bartlett

Info

Publication number: US308944A
Authority: US
Publication date: 1884-12-09
Anticipated expiration: 1901-12-09

Description

" UNITED STATES PATENT Orriee.

WALLACE AifBAIl-'ILETI-l, OF "SHINGTON, DISTRICT OF COLUMBIA.

PROJ ECTI LE.

SPECIFICATION forming p'art of Letters PatentvNo. 308,944, dated December 9, 1884.

` Application nica october 3, ieri. (No monti.)

To all whom t may concern,.- Be it known that I, WALLACE A. BnnfrLE'rr, residing at IVashington, inthe District of Columbia, have invented certain new and useful Improvements in Projcctiles, of which the following is a specification, reference being had therein to the accompanying drawings. This invention relates to projectiles of frangible material, intended to bel used principally to contain chemicals for use in extinguishing res.

The invention consists in the construction of such projectiles, as hereinafter pointed out and claimed. v

Grlassbettles containing a chemical mixture, known as handgrenades,? are largely in use for extinguishing fires, the grenade being used by throwingit violently into the fire,

thus rupturing the bottle and releasing the contents. I propose to make such bottles in formof a projectile to be thrown from an air, springL or other gun to points not readily accessible for hand-grenades.

yThe projectile may contain a coiled line, instead of chemicals, for use as a fire-escape or life-line.

In the drawings, Figure 1 is an elevation of f a flexible sleeve or stocking which forms the life-line.

-guiding-feather of the projectile. Fig. 2 is a longitudinal section of a projectile with the sleeve or stocking applied. Fig. 3 is a similar view of a projectile with stocking turned up, as for shipment. Fig. 4 is a longitudinal section of a projectile having iiexible stocking divided into separate feathers. Fig. 5 is a similar view of another form of projectile. Fig. 6 is asimilar view of a projectile with Fig. 7 isa plan of one form of feather, detached. A represents the body of the projectile,

' which is preferably of glass or earthcnware;

but thin metal may be employed under some circumstances. The body has a groove, B, near the base, in which a stocking or sleeve, C, may be secured either by glue or cement or by sewing or tying. The stocking C is preferably of textile material or felt,though other materials having same general characteristics may be used. I have found .canton-flannel to answer a goed purpose. The stocking may be made tubular, as in Fig. 1,-or disk form,

projecting feather to guide the projectile in-` its flight. The front of the projectile may be protected against accidents in transportation bya ring, I), of twine, paper, or fabric, and this ring D, as well as the stocking O,will.aet as a gascheckin the'gun and also protect the gun-barrel. The ring D maybe in a groove or against a shoulder in the projectile. The stopperE xnay be either in front or rear of the projectile, and may be applied in any wellknown way' for `stopping bottles. As shown in Fig. 5, the stopper projects and will be driven in when the projectile strikes, and release the contents, whether the bottle breaks or not. f

The modification, Fig. 6, for throwing lines, does not require a guiding-feather. The line will be coiled in the projectile, and as it reels out will itself serve as a feather. The conical point of the projectile maybe made heavy, to keep it point on.77

The form of the body of t-he projectile is preferably cylindrical, but is subject to vari'- at-ion within reasonable limits. I have thrown ordinary vials,with a fabric"stoeking,7 from a pneumatic gun with good range and accuracv.

I am aware that cartridge-cases, to contain powder, of paper and of fabric have been secured to bullets by a thread pressing thefront of the cartridge-bag into a oannelure of the bullet. In such case, however, the powderbag does not and cannot serve as a guidingfeather to the projectile, as it is torn off by the explosion of the powder or by the rifling in the gun.

I am also aware that a bomb-lance has been described having an elastic guiding-feather of thin metal.

I claiml. As a new article of manufacture, a hollow projectile of frangible material filled with IOO a lire-extinguishing compound and provided with a guiding-feather of flexible material,sub' stantially as described.

2. A hollow projectile of frangible material, 5 having a non-metallic gniding-feather of flexible material permanently attached near the base thereof, substantially as described.

3. The eombination,with the body of apro-f jeetile of frangible material, of a stocking of io flexible material secured near the base, so as to extend beyond the base when turned back, and a ring of similar nlater'ialsurronndng the body near the front.

4. The body of a projectile having a stock# ing,r of the character described secured at the I 5 base, and having a projecting stopper which. will be driven in when lthe -point of the projectile strikes, substantially as described.

In testimony whereof I aix my signature in presence of two witnesses.-

Wmymn A. -nlxnirma'r'ix Witnesses:

C. W. BROWN, E. L. VHITE.