US776056A

US776056A - Process of producing small-caliber jacketed steel projectiles.

Info

Publication number: US776056A
Application number: US18557703A
Authority: US
Inventors: Albert Haase
Original assignee: Krupp Stahl AG
Current assignee: Krupp Stahl AG; Fried Krupp Grusonwerk AG
Priority date: 1903-12-17
Filing date: 1903-12-17
Publication date: 1904-11-29
Anticipated expiration: 1921-11-29

Description

No. 776.056. PATENTED NOV. 29, 1904.

A. HAASE. PROCESS '0]? PRODUCING SMALL CALIBER JAGKE'I'ED STEEL PROJEGTILES; IIIIIIIIIIIIIIIII 50.17, 1903. no MODEL.

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Patented November 39, 1904.

\ ALBERT. HAASE, OF RUTTENSGHETD, NEAR ESSEN-ON-THE-RUHR, GER- MANY, ASSIGNORTO FRIED. KRUPP, AKTIENGESELLSCHAFT, OF ESSEN-ON-THERUHR, GERMANY.

PROCESS OF PRODUClNG SMALL-BALIBER lACKEl'ED STEEL PROJECTILES.

SPEGIJFIECATION forming 'part of Letters Patent No. 776,056, dated November 2a, 1904;

' Application filed Deccmher l'l, 1903- Serial No. 186,577. (lt'oanodeh) To aZZ whom itmay concern).-

Be it known that T, ALBERT'HAASE, a subject of-the Emperor of Germany, and a resident of Ruttenscheid, near Essen-on-the-Ruhr,

. -5 Germany, have invented certain new and useful Improvements in Processes of Producing Small-Caliber Jacketed Steel Projectiles, of which the following is a specification.

The present invention relates to a process 19 of producing small-caliber jacketed steel pm jectiles; and this process has for its objects to make the producing of such projectiles essentially cheaper.

The desired objects are attained according SllJO the present invention by providing steel rods the length of which is a multiple of the single projectile with 1a jacket of softer material (copper, nickel, or the like) and then dividing the jacketed rod into parts correspond 2 ing to the desired length of the individual pro-' jectiles.

The invention will be understood upon 7 reference to V which- Figure 1 represents a longitudinal section through a portion'of a jacketed steel rod in which the outlines of the projectiles which are to 'be produced from the rod are indicated by dotted lines. Figs. 2 and 3 represent vertical 3 secfions of two finished projectiles on a larger sca e.

The steel red A is first-for instance, by galvanic process-provided with a jacket B, of copper, nickel, or the like. Thereuponthe desired diameter is given to the rod, and finally it is divided into parts. For this purpose it may be put in a lathe-for instance, a revolving lathe-in which it is turned and :in which the several projectiles are cut by means of .4 suitable {too ls. (See, for instance, the tool suggested by dotted lines 0, Fig. 1.) The projectile/thus produced y then be Provided on one end with a taper or point. This may, if the circumstances require it, be done in-a special machine; but the cutting and the pointthe accompanying drawings, in

mg may also be done simultaneously by the 'use of a special toolsuch, for example, as

that suggested by dotted lines C in Fig. 1. Moreover, in turning the projectiles grooves may'also be turned in the copper or nickel jacket. The finished projectiles will have somewhat the shape shown in Figs. 2 and 3,

D indicating the projectile proper, consisting of steel, and E the guide-jacket, consistingof copper, nickel, or the like. The ,jacket becomes cut away or otherwise removed short of the point or front end of the projectile by the act of taperingor pointing the projectile.

The cheapness obtainedzby the above process is, in fact, so great that the projectiles made thereby are not more costly than the coated projectiles (a lead core with nickeled or coppered steel coating) at present exclusively used as infantryemmunition.

Having thus described the invention, the'following is" what is claimed as newtherein:

1. The pro ess of producing jacketed projectiles which consists in providing a metal rod of a length corresponding to several projectiles, with a jacket of a softer metal, dividing up such jacketed rodinto projectile lengths and suitably shaping the ends of the parts thus produced by cutting material therefrom.

' 2. The process of producing jacketedsteel projectiles, which consists in providinga rod having a steel core and soft jacket and of a length sufficient to produce a number of sin-- gle projectiles, dividing the rod into parts of a length, approximately the length of the projectile desired, removing part of the jacket near one end, and pointing or tapering the core from which the jacket has been removed.

The foregoing specification signed at Dusseldorf this 1st day of December,'1903.

ALBERT HAA SE.