US1446711A - Projectile for firearms - Google Patents

Projectile for firearms Download PDF

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Publication number
US1446711A
US1446711A US469276A US46927621A US1446711A US 1446711 A US1446711 A US 1446711A US 469276 A US469276 A US 469276A US 46927621 A US46927621 A US 46927621A US 1446711 A US1446711 A US 1446711A
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Prior art keywords
shell
projectile
rod
firearms
charge
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Expired - Lifetime
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US469276A
Inventor
Ludorf Ernst
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Individual
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Individual
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Priority to US469276A priority Critical patent/US1446711A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/10—Cartridges, i.e. cases with charge and missile with self-propelled bullet

Definitions

  • the present invention relates to a pro]ec tile which contains the whole or part of its charge and which may be used for hand weapons, machine guns, etc.
  • the object of the invention is to provide a projectile which contains the maximum charge in a comparatively small space and which is simple in construction and absolutely reliable in use.
  • Figs. 1, 2, 4 and 5 is each a longitudinal section through a form of the new projectile.
  • Fig. 3 shows a modified construction of the projectile shown in Fig. 2.
  • Fig. 1 of the drawing 1 denotes the shell of hard metal such as steel designed for penetration and terminating in an elon ated point 2 of approximately parabolic shape.
  • the shell 1 there is a core 3 of soft metal, a disk 10 and the explosive material 9 forming the propelling charge of the projectile.
  • the inner wall 8 of the shell is tapering, the thickness of the wall is about equal to the thickness of the head 2 and diminishes gradually toward the hind end of the shell 1.
  • the shell is closed by a bottom 1.1 made of thin sheet metal with low melting point of celluloid, impregnated paper or similar material which is easily ignited.
  • the bottom is joined to the shell 1 by suitable means; it may be pressed into a collar 4 which serves as a driving band.
  • the collar becomes molded into the rifiing of the barrel as soon as ignition begins.
  • a rod 13 is provided running in the centre line of the projectile and consisting of hard explosive material.
  • rod 13 has a central bore 12 and carries at its end adjacent the bottom 11 the primer 14.
  • the space between the rod 13 and the shell is filled with loosely packed explosive materlal. If the firing pin of the gun strikes the primer 14 ignition of the propelling charge takes place.
  • the bore 12 facilitates the rapid consummation of the charge.
  • the rod 13 offers sufficient resistance to the firing pin to ensure the ignition of the primer.
  • Fig. 2 a modified construction is shown which differs from that shown in Fig. 1 in that the whole propelling charge 15 forms one solid body fitting the hollow of the shell exactly.
  • the body 15 is provided with several bores 16 which facilitate the rapid con: summation of the propelling charge.
  • the body may be built up of a number of perforated disks.
  • the bottom may be made to form a cap 17 of celluloid, paper, etc.
  • the cap 17 covers the end of the propelling charge projecting from the shell 1 and carries at its inner side the primer 19.
  • the cap 17 isfixed to the shell 1 by means of a flange engaging the collar 4.
  • FIG. 4 another form is shown in which the central rod 20 is movably arranged in the centre of the shell 1.
  • the rod 20 which consists of hard explosive matter and which constitutes part of the propelling charge is held by bottom 11 and carries at its inner end the primer which is at some distance of a projection 21 of the disk 10.
  • the space around the rod 20 which consists of explosive material is filled with loosely packed explosive material. If the firing pin of the gun strikes the centre of the bottom .11 the rod 20 is displaced in axial direction and strikes against the projection 21 igniting thereby the primer.
  • the rod 20 may be placed in the bore of the body 15 of hard explosive material fitting the shell 1.
  • the primer is again placed at the inner end of the rod 20 opposite to the projection 21.
  • T o prevent untimely ignition the rod 20 may be held not only by the bottom but by sliding springs or some braking device preventing accidental displacement of the rod 20 within the shell.
  • the shell 1 is provided at its fore portion with a band 22', replacing the. collar 4 at the hind end of the shell.
  • the parts 15 and 20 may be provided with igniting material which when the parts 15, 2O rub on each other ignites.
  • the primer however, may be made of any suitable known material.
  • a projectile having a head and a shell for an explosive charge, said head and said shell having an integral continuous wall extending from the point of the head to the rear end of the shell, and said head being hollow and being provided with a core.
  • said head being 1101- low and being provided with a core, a disc in said shell at the base of said core, said disc having a projection, and said shell having a rod extending through the charge chamber from the base of the shell to the disc, and arranged with its front end opposite said projection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

Feb. 27, 1923.
E. LUDORF PROJECTILE FOR FIREARMS Filed May 15, 1921 Patented Feb. 27, 1923.
Nl'l'ED STATES ERN'ST LUDORF, or BERNIE, SWITZERLAND.
PROJECTILE FOR FIREARMS.
Application filed May 13,
To all whom it mag concern:
Be it known that I, ERNST LUDORF, a citizen of the German Republic, residing at Berne, Eflingerstrasse No. 6 Switzerland, have invented new and useful mprovements in Projectiles for Firearms, of which the following is a description.
The present invention relates to a pro]ec tile which contains the whole or part of its charge and which may be used for hand weapons, machine guns, etc.
The object of the invention is to provide a projectile which contains the maximum charge in a comparatively small space and which is simple in construction and absolutely reliable in use.
lVith the foregoing and other objects in view this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, and claimed.
In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like and corresponding parts throughout the several views, and in which:
.Figs. 1, 2, 4 and 5 is each a longitudinal section through a form of the new projectile.
Fig. 3 shows a modified construction of the projectile shown in Fig. 2.
In Fig. 1 of the drawing 1 denotes the shell of hard metal such as steel designed for penetration and terminating in an elon ated point 2 of approximately parabolic shape. \Vithin the shell 1 there is a core 3 of soft metal, a disk 10 and the explosive material 9 forming the propelling charge of the projectile. The inner wall 8 of the shell is tapering, the thickness of the wall is about equal to the thickness of the head 2 and diminishes gradually toward the hind end of the shell 1. At the hind end the shell is closed by a bottom 1.1 made of thin sheet metal with low melting point of celluloid, impregnated paper or similar material which is easily ignited. The bottom is joined to the shell 1 by suitable means; it may be pressed into a collar 4 which serves as a driving band. The collar becomes molded into the rifiing of the barrel as soon as ignition begins. Between the bottom 11 and the disk 10 a rod 13 is provided running in the centre line of the projectile and consisting of hard explosive material. The
1921. Serial No. 469,276.
rod 13 has a central bore 12 and carries at its end adjacent the bottom 11 the primer 14. The space between the rod 13 and the shell is filled with loosely packed explosive materlal. If the firing pin of the gun strikes the primer 14 ignition of the propelling charge takes place. The bore 12 facilitates the rapid consummation of the charge. The rod 13 offers sufficient resistance to the firing pin to ensure the ignition of the primer.
In Fig. 2 a modified construction is shown which differs from that shown in Fig. 1 in that the whole propelling charge 15 forms one solid body fitting the hollow of the shell exactly. The body 15 is provided with several bores 16 which facilitate the rapid con: summation of the propelling charge.
The body may be built up of a number of perforated disks.
To increase the propelling charge without increasing the size of the shell 1 the bottom may be made to form a cap 17 of celluloid, paper, etc. The cap 17 covers the end of the propelling charge projecting from the shell 1 and carries at its inner side the primer 19. The cap 17 isfixed to the shell 1 by means of a flange engaging the collar 4.
In Fig. 4 another form is shown in which the central rod 20 is movably arranged in the centre of the shell 1. The rod 20 which consists of hard explosive matter and which constitutes part of the propelling charge is held by bottom 11 and carries at its inner end the primer which is at some distance of a projection 21 of the disk 10. The space around the rod 20 which consists of explosive material is filled with loosely packed explosive material. If the firing pin of the gun strikes the centre of the bottom .11 the rod 20 is displaced in axial direction and strikes against the projection 21 igniting thereby the primer.
As shown in Fig. 5 the rod 20 may be placed in the bore of the body 15 of hard explosive material fitting the shell 1. The primer is again placed at the inner end of the rod 20 opposite to the projection 21. T o prevent untimely ignition the rod 20 may be held not only by the bottom but by sliding springs or some braking device preventing accidental displacement of the rod 20 within the shell. The shell 1 is provided at its fore portion with a band 22', replacing the. collar 4 at the hind end of the shell.
The parts 15 and 20 may beprovided with igniting material which when the parts 15, 2O rub on each other ignites. The primer however, may be made of any suitable known material.
If ignition starts in the interior of the shell the propelling charge is more rapidly consummated and its effect is considerably increased.
I wish to point out that I do not limit my invention to the particular construction as described, as various details of construction may be varied without departing from the spirit of my invention.
What I wish to secure by Letters Patent is 1. A projectile having a head and a shell for an explosive charge, said head and said shell having an integral continuous wall extending from the point of the head to the rear end of the shell, and said head being hollow and being provided with a core.
rear end of the shell, said head being 1101- low and being provided with a core, a disc in said shell at the base of said core, said disc having a projection, and said shell having a rod extending through the charge chamber from the base of the shell to the disc, and arranged with its front end opposite said projection.
In Witness whereof I ailix my signature.
, ERNST LUDORF.
US469276A 1921-05-13 1921-05-13 Projectile for firearms Expired - Lifetime US1446711A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892400A (en) * 1957-03-22 1959-06-30 George B Zaharakis Projectile for simulating firing of automatic weapons
US3696749A (en) * 1969-11-18 1972-10-10 Remington Arms Co Inc Expendable case with vented base cap
US3808973A (en) * 1971-05-31 1974-05-07 Giulo Fiocchi Spa Self-propelling projectile for firearms
US3815503A (en) * 1970-10-19 1974-06-11 Direccion General De Investiga Self-propelling ballistic projectiles
US3994235A (en) * 1971-02-05 1976-11-30 Fa. Diehl Powder element
US20070144393A1 (en) * 2005-12-22 2007-06-28 Maximillian Kusz Caseless ammunition with internal propellant
US20220268559A1 (en) * 2020-11-11 2022-08-25 Vincent Battaglia Piston/rocket projectile with separable casing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892400A (en) * 1957-03-22 1959-06-30 George B Zaharakis Projectile for simulating firing of automatic weapons
US3696749A (en) * 1969-11-18 1972-10-10 Remington Arms Co Inc Expendable case with vented base cap
US3815503A (en) * 1970-10-19 1974-06-11 Direccion General De Investiga Self-propelling ballistic projectiles
US3994235A (en) * 1971-02-05 1976-11-30 Fa. Diehl Powder element
US3808973A (en) * 1971-05-31 1974-05-07 Giulo Fiocchi Spa Self-propelling projectile for firearms
US4236451A (en) * 1971-05-31 1980-12-02 Giulio Fiocchi, S.P.A. Self-propelling projectile for firearms
US20070144393A1 (en) * 2005-12-22 2007-06-28 Maximillian Kusz Caseless ammunition with internal propellant
US20220268559A1 (en) * 2020-11-11 2022-08-25 Vincent Battaglia Piston/rocket projectile with separable casing
US11788824B2 (en) * 2020-11-11 2023-10-17 Vincent Battaglia Piston/rocket projectile with separable casing

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