US275258A - Edward palliser - Google Patents

Description

(No Model.)

E. PALLISER.

PROJEGTILB. No. 275,258. Patented Apr. 3, 1883.

l UNITED STATES PATENT OFFICE.

EDWARD PALLISER, OF WEST KENSINGTON, COUNTY OF MIDDLESEX,

ENGLAND PROJ ECTILE.

erneuten-.Tron formingA part of Letters. Pittem; No. 275,258. dated April 3, 1883,

Application filed June 1. 1882. (No model.)l Patented in England April 8, 1F82, No. 1,703.

' To all whom Iit may concern:

Be it linown thatJ I, EDWARD PLLISER, a. citizen of England, residing` at WestKensiugton,in the county of Middlesex, England, have 5 invented anew and useful-Improvement in lrojectiles for Ordnance, ('or which I have obtained provisional protection in Great Britain, No. 1,703, dated April 8,1881) of which the following is a specification. i

My invention has' reference to a construc- .tion ot' projectiles for ordnance with ribbed head, for which an application for Letters Patent has been led,ofequal date herewith, in the name of John Palliser. In the specification to the'said application is described thcshriuk' ing of a Wrought-iron or steel ring or short' jacket onto the cylindrical body of the pro jectile behind the ends of the ribs. It has been found that the impact of the shoulder of this tightly-lixed ring or short jacket against the armor-plates as the projectile penetrates, in some instances when the projectile is made of chilled cast-iron, causes this to snap asunder at that-point.

According to my present invention I obviate this defect by constructing the body of the projectile of a slightly-tapering diameter toward the rear end, and lshrinking' thereon ajacket etending the whole length, or nearly so, ofthe body, and fitting with a correspondingly-tapered inner surface thereon. By this arrangement the jacket will strengthen the body of the projectile against fracture by concussion upon the impact of the head against the armorv plate, and while the head is passing through; but wheinthe projectile has penetrated so far that the front edge of thejacket comes in contact with the armor-plate the jacket will be readily pushed oli' the body ofthe projectile on account of the tapering it of the two parts, and thus the fracture of the bodyr will be prevented. l strengthen the projectile against fracture by providing it with an inner wroughtiron or steel easing, or by binding` it round with steel ribbon or wire, and in this case the inner casing would fit with a cylindrical surface onto the cylindrical body ofthe projectile, and would be formed with a tapering outer sui'- face, upon which the taper outerjacket would be shrunk. In this case, also, the outer jacket may be reduced in length, so as only to constitute a taper bearing-ring.

` Figure 1oftheaccompanyingdraivings shows one arrangement of the projectile constructed according to my invention. A is the conoidal head, having radial ribs B, terminating at the springing ofthe conoidal curvature. Beyond this point the body U of the projectile is rcduced in diameter, as shown, the part from C to Czbeing cylindrical, and upon this is shrunk the jacket or casin g D, having an internal conliguration corresponding to that ofthe body, while its outer surface, being at its front end equal in diameter to the buse of the head, is made to taper to a smaller diameter at the rear end. Upon the tapering surface thus formed is now shrunk the outer jacket, E, having a. correspondingly-tapering inner surface, while its outer surface is. cylindrical, being at the two ends made nearly equal in diameter to the bore of the gun, such enlarged end portions constituting annular rings or bands corresponding in diameter to that ol' the outer edges of the ribs B, so that these will not injure the bore of the gun on firing. The central portion of the jacitet between such rings or bands is'depressed, so that the rings or bands alone rest against the bore of the gun, the forward one preventing the ribs B from coming in contact with and injuring the bore. As before described, the outer jacket, E, will be readily stripped ott' on the projectile passing through thearmor-plate, while theinnerjacket, D, heilig ilush with the diameter of the head, will remain on the body and strengthen it against fracture. The contact-surfaces of C and D are 'for this purpose made rough, while thoscof I) and E are made smooth. F is the gas-check rin g, of soft metahwhich is expanded by the pressure of the gases so as to fit tightly against the bore of the gun and prevent the escape of gases past the projectile.

Fig. 2 shows a lnodilication in which the in: ner jacket is dispensed with, the surface of the body U being itself' made ofthe requisite taper to fit the taperjacket E. .lt is preferred, however, to use the inner jacket, D, or, in lieu thereof, to bind the body round with a sheathing of' steel ribbon or Wire in order to strengthen it.

IOC

Fig. 3 shows another modiication, in which the innerjacket or sheathiugis provided with an outerjacket composed ot rings or bands G G', interiorly tapered and shrunken the respective ends ot' the in nerjacket, the-ring or band G serving to prevent; the ribs B from coming in contact with and injuring the bore of the gun when firing, both rings or bands, however, being stripped or driven olf of the inner jacket by contact with the armor-plute.

Although I have shown and described my invention as applied to a. projectile having a. ribbed head, it will be obvious that the invention is applicable to other or ordinary forms ot projectiles.

Having thus described the nature of my invention and in what manner the same is to be performed, I claim- The combination, fit-l1 a projectile, ofan innerjacket or sheathing havnga tapering outer zo surface and fixed upon the projectile-body, and an outerjacket tapered interiorly and secured upon the innerjacket or sheathing, but capable of being stripped threfrom by contact. with an armor-plate or other object, leaving the inner jacket intact to strengthen the projectile-body against fracture, substantially as described.

In testimony whereof I have signed my name to this specilication,in thepresence of two sub, 3o scribing witnesses, this Qthday of Mey, A. D. 1882. l

y EDWARD PALLISER. Witnesses:

GEORGE PERHAM, OLIVER IMRAY.

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