US3276378A - Caseless blank charge - Google Patents

Caseless blank charge Download PDF

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Publication number
US3276378A
US3276378A US406006A US40600664A US3276378A US 3276378 A US3276378 A US 3276378A US 406006 A US406006 A US 406006A US 40600664 A US40600664 A US 40600664A US 3276378 A US3276378 A US 3276378A
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US
United States
Prior art keywords
charge
chamber
tamping
blank
caseless
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US406006A
Inventor
Gahle Walter
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Rheinmetall Industrie AG
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Rheinmetall GmbH
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Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
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Publication of US3276378A publication Critical patent/US3276378A/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
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/04—Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/70—Combustilbe cartridge

Definitions

  • the blank charge according to the invention eliminates these defects and is characterized in that a powder charge is combined with a tamping plug adapted to the crosssection of the chamber to form a single structural unit.
  • the powder charge is of smaller cross-section than the tamping plug.
  • a suitable combustion chamber is created for the powder charge, so that on the firing thereof a gas pressure is built up which shatters the tamping plug into very small pieces.
  • the tamping plug referred to above may consist of a filler, for example carcass powder, cork powder, etc., which is mixed into a pasty composition with a synthetic resin cement with the addition of a hardening agent. This composition is poured into moulds matching the crosssecti-on of the chamber and in which it then hardens into tamping plugs.
  • a filler for example carcass powder, cork powder, etc.
  • This composition is poured into moulds matching the crosssecti-on of the chamber and in which it then hardens into tamping plugs.
  • the tamping plugs and/or also, in manner known per se, the powder charge are arranged in bag-shaped containers which can be attached to one another, for example, by sewing or cementing. Moreover, it is also possible to arrange the tamping plug and the powder charge in a single bag.
  • the blank charge according to the invention is particularly advantageous for guns using caseless charges, it can, if the breech of the gun and the detonating arrangement are suitably designed, also be employed with advantage in guns in which propellent charges arranged in shell cases are normally used.
  • the blank charge according to the invention produces a loud explosion similar to a live round, the tamping plug being broken up into very small pieces.
  • a gun barrel 1 has a chamber 2 designed for caseless propellent charges.
  • a blank charge consisting of a tamping plug or bag 3 and a powder propellent charge or bag 4 attached thereto, is pushed into the chamber to an extent such that the rear end of the powder charge 4, which end is provided with a primer 5, is located immediately in front of the breechblock 6.
  • the powder charge is ignited by way of the primer 5 by the usual detonation flash produced when the primer is struck.
  • the powder charge 4 is smaller in cross-section than the tamping plug 3, so that a combustion chamber 8 is formed.
  • a gas pressure is built up by which the tamping plug is then shattered into very small pieces.
  • the tamping plug 3 and the powder charge 4 are each arranged in a suitable bag 9, 9, respectively, of a kind known per se and these bags are attached to one another by cementing.
  • the covering of the tamping plug with a bag also has the advantage that the insertion of the blank charge into the chamber is facilitated, sealing with respect to the wall of the chamber being also obtained at the same time.
  • a caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the crosssection of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse crosssectional area greater than that of the propellent charge, a bag containing the propellent charge, and a further bag secured to said first-mentioned bag and comprising the tamping plug.
  • a caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the cross-section of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse cross-sectional area greater than that of the propellent charge, and a single bag in which both said charge and said plug are housed.
  • a caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the crosssection of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse cross-sectional area greater than that of the propellent charge, the propellent charge being secured to the rear end of the tamping plug.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Air Bags (AREA)

Description

Qct. 4, 1966 w. GAHLE 3, 76,
GASELESS BLANK CHARGE Filed Oct. 25, 1964 United States Patent s 3 Claims. (a. 102-97 Certain forms of guns, in particular those of large calibre, have a comparatively long chamber into which the propellent charge, generally packed in a bag, is inserted after a projectile has first been introduced into the barrel. Because of the special form of the propellent charge, such guns also have a special form of breech and of detonating arrangement which does not permit practice firing by means of known blank propellent charges accommodated in shell cases.
It has always been felt to be a fault that practice or battle training firing is not possible with such guns, since, on the one hand, it is diflicult to fix a powder charge suitable for practice firing in the chamber in such a way that satisfactory detonation is ensured and, on the other hand, suitable tamping of the powder charge has been Wanting or it has been no less difficult to arrange such a tamping means in the chamber or in the barrel.
The blank charge according to the invention eliminates these defects and is characterized in that a powder charge is combined with a tamping plug adapted to the crosssection of the chamber to form a single structural unit.
As an advantageous development of the invention, the powder charge is of smaller cross-section than the tamping plug. In this way, a suitable combustion chamber is created for the powder charge, so that on the firing thereof a gas pressure is built up which shatters the tamping plug into very small pieces.
The tamping plug referred to above may consist of a filler, for example carcass powder, cork powder, etc., which is mixed into a pasty composition with a synthetic resin cement with the addition of a hardening agent. This composition is poured into moulds matching the crosssecti-on of the chamber and in which it then hardens into tamping plugs.
As a lflllthfil' advantageous development, the tamping plugs and/or also, in manner known per se, the powder charge, are arranged in bag-shaped containers which can be attached to one another, for example, by sewing or cementing. Moreover, it is also possible to arrange the tamping plug and the powder charge in a single bag.
Although the blank charge according to the invention is particularly advantageous for guns using caseless charges, it can, if the breech of the gun and the detonating arrangement are suitably designed, also be employed with advantage in guns in which propellent charges arranged in shell cases are normally used.
The blank charge according to the invention produces a loud explosion similar to a live round, the tamping plug being broken up into very small pieces.
By way of example only, an embodiment of the invention will now be described in greater detail with reference to the accompanying drawing which shows in diagrammatic cross-section only, a gun barrel and inserted blank charge.
3,276,378 Patented Oct. 4, 1966 ice A gun barrel 1 has a chamber 2 designed for caseless propellent charges. A blank charge, consisting of a tamping plug or bag 3 and a powder propellent charge or bag 4 attached thereto, is pushed into the chamber to an extent such that the rear end of the powder charge 4, which end is provided with a primer 5, is located immediately in front of the breechblock 6. On the firing of a detonating cartridge 7 introduced into the breechblock, the powder charge is ignited by way of the primer 5 by the usual detonation flash produced when the primer is struck.
As will be seen from the drawing, the powder charge 4 is smaller in cross-section than the tamping plug 3, so that a combustion chamber 8 is formed. In this way, on ignition of the powder charge, a gas pressure is built up by which the tamping plug is then shattered into very small pieces.
In the blank charge shown in the drawing, the tamping plug 3 and the powder charge 4 are each arranged in a suitable bag 9, 9, respectively, of a kind known per se and these bags are attached to one another by cementing. The covering of the tamping plug with a bag also has the advantage that the insertion of the blank charge into the chamber is facilitated, sealing with respect to the wall of the chamber being also obtained at the same time.
I claim:
1. A caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the crosssection of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse crosssectional area greater than that of the propellent charge, a bag containing the propellent charge, and a further bag secured to said first-mentioned bag and comprising the tamping plug.
2. A caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the cross-section of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse cross-sectional area greater than that of the propellent charge, and a single bag in which both said charge and said plug are housed.
3. A caseless blank charge for the chamber of a gun comprising in combination a cylindrical propellent charge incorporating a tamping plug adapted to the crosssection of a chamber of a gun from which the charge is to be fired, the tamping plug having a transverse cross-sectional area greater than that of the propellent charge, the propellent charge being secured to the rear end of the tamping plug.
References Cited by the Examiner UNITED STATES PATENTS 45,227 11/ 1864 Connel 102--97 569,190 10/1896 Gathmann 89-14 576,917 2/1897 Thomas 89-14 1,253,596 1/1918 Hitt l0297 1,329,503 2/1920 Casey 102-97 3,103,883 9/1963 Ormanns et al 10239 BENJAMIN A. BORCHELT, Primary Examiner.
R. F. STAHL, Assist nt Examiner.

Claims (1)

1. A CASELESS BLANK CHARGE FOR THE CHAMBER OF A GUN COMPRISING IN COMBINATION A CYLINDRICAL PROPELLANT CHARGE INCORPORATING A TAMPING PLUG ADAPTED TO THE CROSSSECTION OF A CHAMBER OF A GUN FROM WHICH THE CHARGE IS TO BE FIRED, THE TAMPING PLUG HAVING A TRANSVERSE CROSSSECTIONAL AREA GREATER THAN THAT OF THE PROPELLANT CHARGE, A BAG CONTAINING THE PROPELLANT CHARGE, AND A FURTHER BAG SECURED TO SAID FIRST-MENTIONED BAG AND COMPRISING THE TAMPING PLUG.
US406006A 1963-10-26 1964-10-23 Caseless blank charge Expired - Lifetime US3276378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER36425A DE1225075B (en) 1963-10-26 1963-10-26 Maneuver cartridge

Publications (1)

Publication Number Publication Date
US3276378A true US3276378A (en) 1966-10-04

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ID=7404902

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Application Number Title Priority Date Filing Date
US406006A Expired - Lifetime US3276378A (en) 1963-10-26 1964-10-23 Caseless blank charge

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US (1) US3276378A (en)
CH (1) CH422582A (en)
DE (1) DE1225075B (en)
GB (1) GB1070836A (en)
NL (1) NL6412218A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366057A (en) * 1965-05-08 1968-01-30 Rheinmetall Gmbh Blank cartridge for guns
US4448130A (en) * 1982-07-15 1984-05-15 General Dynamics, Pomona Division Packaging kit for pyrotechnic materials loading
US4593622A (en) * 1983-09-23 1986-06-10 Dynamit Nobel Aktiengesellschaft Industrial cartridge with separated deflagrating components

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US45227A (en) * 1864-11-29 Improvement in scraping- disk or wad for ordnance car
US569190A (en) * 1896-10-13 High-explosive projectile and gun for throwing same
US576917A (en) * 1897-02-09 High-explosive-throwing ordnance
US1253596A (en) * 1917-08-02 1918-01-15 Thomas G Hitt Fire-cracker.
US1329503A (en) * 1918-07-22 1920-02-03 Du Pont Container for explosives
US3103883A (en) * 1960-02-22 1963-09-17 Rheinmetall Gmbh Blank cartridge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797218A (en) * 1904-03-09 1905-08-15 Francis I Du Pont Smokeless-powder saluting charge.
DE1779348U (en) * 1958-07-31 1958-12-11 Wasagchemie Ag MANEUVER CARTRIDGE OF THE ARTILLERY.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US45227A (en) * 1864-11-29 Improvement in scraping- disk or wad for ordnance car
US569190A (en) * 1896-10-13 High-explosive projectile and gun for throwing same
US576917A (en) * 1897-02-09 High-explosive-throwing ordnance
US1253596A (en) * 1917-08-02 1918-01-15 Thomas G Hitt Fire-cracker.
US1329503A (en) * 1918-07-22 1920-02-03 Du Pont Container for explosives
US3103883A (en) * 1960-02-22 1963-09-17 Rheinmetall Gmbh Blank cartridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366057A (en) * 1965-05-08 1968-01-30 Rheinmetall Gmbh Blank cartridge for guns
US4448130A (en) * 1982-07-15 1984-05-15 General Dynamics, Pomona Division Packaging kit for pyrotechnic materials loading
US4593622A (en) * 1983-09-23 1986-06-10 Dynamit Nobel Aktiengesellschaft Industrial cartridge with separated deflagrating components

Also Published As

Publication number Publication date
CH422582A (en) 1966-10-15
GB1070836A (en) 1967-06-07
DE1225075B (en) 1966-09-15
NL6412218A (en) 1965-04-27

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