US3398683A - Blank cartridge - Google Patents

Blank cartridge Download PDF

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Publication number
US3398683A
US3398683A US548277A US54827766A US3398683A US 3398683 A US3398683 A US 3398683A US 548277 A US548277 A US 548277A US 54827766 A US54827766 A US 54827766A US 3398683 A US3398683 A US 3398683A
Authority
US
United States
Prior art keywords
cartridge
plug
cartridge case
blank cartridge
blank
Prior art date
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
Application number
US548277A
Other languages
English (en)
Inventor
Gahle Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Application granted granted Critical
Publication of US3398683A publication Critical patent/US3398683A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to blank cartridges for guns, consisting of a powder charge in a cartridge case and a tamping plug made of filler and binding agent which disintegrates on firing.
  • the tamping plug is usually fixed to the wall of the cartridge case.
  • this is achieved by enclosing the combustion space within a hollow cylinder closed at its upper end and made of a synthetic material with a low inflammability which disintegrates on firing, for example foamed polystyrol.
  • the hot powder gases occurring on firing melt the hollow cylinder and the latter disintegrates practically without any residue without having any disadvantageous effects on the combustion of the powder.
  • the manufacture of the blank cartridge is also considerably simplified as compared with existing techniques.
  • the invention is particularly advantageous when embodied in a blank cartridge in which the tamping plug consists of an unmoulded, paste-like mixture of filler, a synthetic resin and a self-hardening binding agent, this mixture being formed into a plug inside the cartridge case where it hardens without any further treatment and adheres to the wall of the cartridge case.
  • the upper closed end of the hollow cylinder can then simultaneously form a backing for the tamping plug.
  • the invention can also be embodied with advantage in cartridge cases with an upper retracted collar--that is normal cartridges to be used in action.
  • the walls of the cylinder can be made in a simple manner from a rectangular sheet bent into a cylinder.
  • the bent or loosely rolled sheet can be inserted through the collar of the car- 3,398,683 Patented Aug. 27, 1968 tridge case into the latter.
  • a disc for closing the hollow cylinder can be passed through the collar.
  • a cartridge case 1 Within a cartridge case 1 is a powder charge 2 with tamping plug 3 spaced above it. Between the powder charge 2 and the tamping plug 2 there is a combustion space 4 which is essential to build up a sufiiciently high gas pressure for the noise eflFect and also to ensure that the tamping plug will disintegrate without residue when firing takes place.
  • the combustion space is enclosed in a hollow cylinder 5 of polystyrol closed at its upper end by alid 6.
  • the hollow cylinder and its lid 6 can be made in one piece or the lid can lie on the rim of the cylinder wall-as shown-and be fixed to this.
  • the curved wall of the cylinder consists of a rectangular sheet which, due to its pliability and elasticity, can easily be bent to form a cylinder and can be introduced into the cartridge case through the collar.
  • the lid 6 can be introduced into the cartridge case.
  • the lid 6, which in the case of large calibre cartridges is preferably reinforced by a thin cardboard disc 7, acts as backing for the tamping plug 3 which is placed on the lid in the form of an unmoulded paste mixture of filler, synthetic resin and hardening binding agent and lightly pressed into place.
  • the upper end of the cartridge case is closed by a U- shaped lid made of cardboard which is fixed to the cartridge case by means of an adhesive and sealed.
  • a blank cartridge comprising in combination, a cartridge case containing a powder charge and a tamping plug spaced from the charge and secured to the said cartridge case, a hollow container forming a combustion space between said charge and said plug and composed of a synthetic material of low inflammability which disintegrates when said cartridge is fired, a closure for said container between said space and said plug, and a disc provided adjacent the closure and the tamping plug being inside said cartridge case formed from an unmolded paste mixture of a filler, a synthetic resin and a self-hardening binding agent and said closure acting as a backing for said tamping plug.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Pens And Brushes (AREA)
US548277A 1965-05-08 1966-05-06 Blank cartridge Expired - Lifetime US3398683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER40579A DE1290452B (de) 1965-05-08 1965-05-08 Manoeverkartusche

Publications (1)

Publication Number Publication Date
US3398683A true US3398683A (en) 1968-08-27

Family

ID=7406102

Family Applications (1)

Application Number Title Priority Date Filing Date
US548277A Expired - Lifetime US3398683A (en) 1965-05-08 1966-05-06 Blank cartridge

Country Status (5)

Country Link
US (1) US3398683A (enrdf_load_stackoverflow)
BE (1) BE680518A (enrdf_load_stackoverflow)
DE (1) DE1290452B (enrdf_load_stackoverflow)
GB (1) GB1137978A (enrdf_load_stackoverflow)
NL (1) NL6605758A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243860A1 (de) * 1992-12-23 1994-07-07 Imm Inst Mikrotech Mikrominiaturisierte, elektrostatische Pumpe und Verfahren zu deren Herstellung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157684A (en) * 1975-09-23 1979-06-12 Clausser Karl C Safety filler for underloaded firearm cartridge
GB2166850B (en) * 1984-09-28 1988-08-10 Haley & Weller Ltd Pyrotechnic device
GB2244547B (en) * 1990-05-17 1994-02-09 Jenkins Harvey Dev Ltd A pyrotechnic device
DE4135248A1 (de) * 1991-10-25 1993-04-29 Brenneke Wilhelm Kg Kartusche fuer eine handwaffe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148620A (en) * 1959-08-14 1964-09-15 Wegematic Corp Wear reduction additives
US3209689A (en) * 1956-11-14 1965-10-05 Mclennan Donald Elmore Reduction of gun barrel wear
US3230884A (en) * 1962-10-04 1966-01-25 Rheinmetall Gmbh Blank shells for artillery and method of producing the same
US3282215A (en) * 1965-04-30 1966-11-01 Roth Milton Additives for reduction of gun wear
US3295448A (en) * 1963-10-31 1967-01-03 Rheinmetall Gmbh Blank shell for guns

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113395B (de) * 1960-02-22 1961-08-31 Rheinmetall Gmbh Manoeverkartusche mit einer Ladung aus schuettfaehigem Schiesspulver
DE1123953B (de) * 1960-07-01 1962-02-15 Dynamit Nobel Ag Kartusche fuer rueckstossfreie Geschuetze
FR1347142A (fr) * 1962-11-13 1963-12-27 Cartoucherie Francaise Perfectionnements aux cartouches de mortiers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209689A (en) * 1956-11-14 1965-10-05 Mclennan Donald Elmore Reduction of gun barrel wear
US3148620A (en) * 1959-08-14 1964-09-15 Wegematic Corp Wear reduction additives
US3230884A (en) * 1962-10-04 1966-01-25 Rheinmetall Gmbh Blank shells for artillery and method of producing the same
US3295448A (en) * 1963-10-31 1967-01-03 Rheinmetall Gmbh Blank shell for guns
US3282215A (en) * 1965-04-30 1966-11-01 Roth Milton Additives for reduction of gun wear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243860A1 (de) * 1992-12-23 1994-07-07 Imm Inst Mikrotech Mikrominiaturisierte, elektrostatische Pumpe und Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
GB1137978A (en) 1968-12-27
BE680518A (enrdf_load_stackoverflow) 1966-10-17
NL6605758A (enrdf_load_stackoverflow) 1966-11-10
DE1290452B (de) 1969-03-06

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