US3124070A - Relay forming additional charge for - Google Patents

Relay forming additional charge for Download PDF

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Publication number
US3124070A
US3124070A US3124070DA US3124070A US 3124070 A US3124070 A US 3124070A US 3124070D A US3124070D A US 3124070DA US 3124070 A US3124070 A US 3124070A
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United States
Prior art keywords
relay
projectile
projecting portion
axis
container
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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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English (en)
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/08—Ordnance projectiles or missiles, e.g. shells
    • F42B30/10—Mortar projectiles
    • F42B30/12—Mortar projectiles with provision for additional propulsive charges, or for varying the length

Definitions

  • the present invention relates to additional powder charges or relays intended for the propulsion of artillery projectiles and for igniting the self-propulsion powder of rockets.
  • Such additional charges usually comprise a casing forming a container, the Wall of which, is constituted of Celluloid or like combustible plastic material, and must have a thickness which is both sufficiently small to permit easy igniting of the grains of powder contained in the said casing, and which is at the same time sufiicient to provide the relay with the rigidity required in order to enable suitable connection of said relay to the projectile.
  • the ignition of the additional charge is effected in a known manner by the evolution of gases promoted by the percussion of a cartridge contained in the tubular, perforated tail of the projectile.
  • the relays When said tail is provided at the extremity thereof with a stabilizing tail-fin unit, the relays usually have the shape of a horseshoe so that they can be engaged laterally, between said fin unit and the projectile body, each relay being mounted transversely astride the perforated tail.
  • the chargecasing comprises an inflammable wall strengthened by a reinforcement of fabric which does not affect the combustibility of said wall and charge.
  • the relay casing When strengthened in this manner, the relay casing permits the powder contained therein to be ignited just as easily as if there were no reinforcement, but when the wall of Celluloid or of similar material cracks during Patented Mar. 10, 1964 handling operations, the reinforcement formed by the fabric prevents the crack from enlarging and the grains of powder cannot escape from said casing.
  • the fabric reinforcement can preferably be of very fine threads of superpolyamide or of any other similar material, and preferably woven in the known manner to prevent the fabric from running or laddering.
  • the additional charge having a horseshoed shape
  • the central portion of said charge comprises on one of its faces an additional quantity of powder housed in a small chamber, the wall of which, projecting from said face, is integral with or added to the wall of the casing, while the external dimensions of the projecting portion thus formed are equal, to within the nearest lesser internal clearance, to the gap formed between the arms of the additional charge.
  • the projection formed on one additional charge can be engaged between the arms of an adjacent identical charge, in such manner that when these charges are engaged laterally on the tail of a projectile, said additional charges form a charge which completely surrounds said projectile, thereby eliminating the empty space remaining between the arms of the horseshoe relays of conventional shape.
  • FIG. 1 is a front view of an improved relay or additional charge in accordance with the present invention
  • FIG. 2 is a diametrical cross-secti0n taken along the line 22 of FIG. 1;
  • FIG. 3 is a side elevational view of said relay
  • FIG. 4 is a cross-section of a part of said relay, on a larger scale
  • FIG. 5 shows partially in cross-section and partially in profile, a plurality of relays fitted in position on the finned tail of a mortar projectile
  • FIG. 6 is a transverse cross-section taken along the line 66 of FIG. 5.
  • the additional charge or relay C has the conventional horseshoe shape shown in FIG. 1.
  • Said additional charge includes a propellant charge 6 which is contained in a container formed by joining together and gluing in mutual relation the flat edges 1 and 2 of two half-shells 3 and 4, having the shape of a horseshoe when seen from the front as shown in FIG. 1.
  • These half-shells are constituted by a composite wall which is formed by a wall proper a of Celluloid or of similar plastic material, covered on one of its faces, for example the outer face, with a reinforcement b constituted by a very fine mesh fabric and preferably ladderproof.
  • Said fabric may be made of superpolyamide or other similar synthetic plastic material.
  • the incorporation of the strengthening means constituted by the reinforcement b can, of course, be obtained in any suitable manner, for example by coating the fabric 12 with a solvent (for example acetone or amyl acetate in the case of Celluloid) which is suitable for the plastic material, the purpose of this solvent being not to dissolve the fabric but to glue the latter to the plastic material, and thereafter applying said fabric with suitable pressure and at the proper temperature against a sheet of Celluloid or other plastic material which is intended to constitute the wall a.
  • a solvent for example acetone or amyl acetate in the case of Celluloid
  • the half shell 1 or 2 of the relay is fashioned as in the case of a sheet of pure Celluloid.
  • strengthening threads can also be incorporated in the liquid nitrocellulose during the manufacture of the Celluloid sheet.
  • the half-shell 3 has the conventional shape of known horseshoe charges, inasmuch as it forms beyond its flat edges 1 a groove or channel 5 which corresponds in shape to that of the horseshoe and is filled with a charge 6 of finely divided powder.
  • the half-shell 4 is provided in the central portion of the relay with an externally projecting portion 7 which forms on its internal face a small chamber 8 which is intended to be filled with an additional quantity of powder 9.
  • Said projecting portion 7 is inscribed in a rectangule having a length l in a circumferential direction as shown in FIG. 1, which is substantially equal (with very little clearance), to the clear distance between the two wings of the charge C, while the external face 10 and the internal face 11 are preferably cylindrical and concentric with the center of the charge.
  • the projecting portion 7 extends from the face of half shell 3 a distance substantially equal to the axial extent of the half shell 3 which is the distance from the face and the rear wall thereof as best seen in FIG. 4.
  • the half-shell 4 is, provided in the middle of the projecting portion 7 with a hole 12 for charging the charge or relay C with the propellant powder. Said hole is subsequently plugged by means of a washer l3 and the half shell 4 is provided with a stiffening rib 14 formed on each of the wings of said half-shell and along the flat edges thereof.
  • FIGS. and 6 illustrate the assembly of additional charges C C C and C on the tail Q provided with a tail-fin unit E of a mortar projectile R.
  • a projecting portion 7 of the charge C is filled with powder and is engaged between the two arms of the charge C in such manner that the combined assembly of the charges C and C completely encircles the tail Q.
  • a relay constituting additional propellant means for a projectile having a tail portion said relay having an axis and comprising, a hollow container, and a propellant charge in the hollow container, said container including an inflammable enclosing wall of plastic material with a fabric reinforcement layer, said container extending about said axis in a plane perpendicular to said axis substantially in the shape of a segment of a ring, said wall including a forward wall portion and a rear wall portion in axially spaced relation, said container including branches defining a radially extending passageway through which is adapted to be passed the tail portion of the projectile when the relay is mounted on the projectile, said container including a projecting portion on the forward wall portion extending axially and located at the same radial distance from said axis as said passageway, said projecting portion defining an inner cavity containing a portion of said propellant charge, said projecting portion extending axially a distance equal to the axial spacing between the forward and rear wall portions, said projecting portion
  • a relay adapted for being mounted on the tail portion of a projectile to constitute additional propellant means for the projectile, said relay having an axis and comprising a hollow combustible container extending about said axis in a plane perpendicular to the axis in the shape of a horseshoe having a middle portion and spaced branches defining a radially extending passageway, a propellant charge in the container, an axially projecting portion on said middle portion defining a cavity containing a portion of said propellant charge, said projecting portion extending an axial distance equal to the axial extent of said container and having a transverse width equal to the spacing between said branches, said projecting portion being located a radial distance from the axis suificient to enable the projecting portion to be accommodated between the branches of an identical second relay while the projecting portion of the second relay is accommodated between the branches of the first relay when said relays are mounted on the tail portion of the projectile and cooperatively surround the tail portion with propellant charge.
  • a projectile having a tail portion and a propellent charge said projectile comprising a pair of relays constituting additional propellent means for said projectile, each of said relays having an axis and comprising a hollow container, and a propellent charge in the hollow container, said container including an inflammable enclosing wall of plastic material with a fabric reinforcement layer, said container extending about said axis in a plane perpendicular to said axis substantially in the shape of a segment of a ring, said wall including a forward Wall portion and a rear wall portion in axially spaced relation, said container including branches defining a radially extending passageway, said relays being coaxially mounted on the tail portion of the projectile, said container of each of the relays including a projecting portion on the forward wall portion extending axially and located at the same radial distance from said axis as said passageways, said projecting portion defining an inner cavity containing a portion of said propellent charge, said projecting portion extending axially a

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Reinforced Plastic Materials (AREA)
US3124070D 1960-01-28 Relay forming additional charge for Expired - Lifetime US3124070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR816921A FR1255494A (fr) 1960-01-28 1960-01-28 Relais formant charge additionnelle pour projectile empenné

Publications (1)

Publication Number Publication Date
US3124070A true US3124070A (en) 1964-03-10

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ID=8724429

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Application Number Title Priority Date Filing Date
US3124070D Expired - Lifetime US3124070A (en) 1960-01-28 Relay forming additional charge for

Country Status (7)

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US (1) US3124070A (enrdf_load_stackoverflow)
BE (1) BE598933A (enrdf_load_stackoverflow)
CH (1) CH364716A (enrdf_load_stackoverflow)
ES (1) ES264178A1 (enrdf_load_stackoverflow)
FR (1) FR1255494A (enrdf_load_stackoverflow)
GB (1) GB949111A (enrdf_load_stackoverflow)
NL (2) NL260461A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024780A1 (de) * 1997-11-12 1999-05-20 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Treibladungsbehälter
US6837164B1 (en) * 2002-11-13 2005-01-04 The United States Of America As Represented By The Secretary Of The Army Propelling charge increment protector for 120mm mortar ammunition
WO2005075933A1 (en) * 2004-02-09 2005-08-18 Patria Weapon Systems Oy Increment charge for fin-stabilized mortar projectile
US7059251B1 (en) * 2004-09-09 2006-06-13 The United States Of America As Represented By The Secretary Of The Army Propelling charge support for a mortar cartridge
US20120024141A1 (en) * 2008-10-17 2012-02-02 Rheinmetall Landsysteme Gmbh Weapon system with a carrier vehicle and a preferably vehicle dependent mortar
US8707846B2 (en) 2008-11-06 2014-04-29 Rheinmetall Waffe Munition Gmbh Weapon with recoil and braking device, damping this recoil
US8794120B2 (en) 2008-11-06 2014-08-05 Rheinmetall Waffe Munition Gmbh Mortar
RU2601662C1 (ru) * 2015-05-21 2016-11-10 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") ЕДИНЫЙ ПОЛНЫЙ ПЕРЕМЕННЫЙ ЗАРЯД МИНОМЁТНОГО 82-мм ВЫСТРЕЛА
US12276488B1 (en) * 2022-09-22 2025-04-15 The United States Of America As Represented By The Secretary Of The Army Multi-compartment mortar increment container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534972C1 (de) * 1985-10-01 1992-04-09 Dynamit Nobel Ag Huelsenlose Munition

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US88948A (en) * 1869-04-13 Improved material for cartridge-cases
US281730A (en) * 1883-07-24 Railway-car electrical-circuit coupler
US1530692A (en) * 1923-06-27 1925-03-24 Charles L Paulus Reenforced pyrotechnic flare
US1758358A (en) * 1927-12-23 1930-05-13 Henry E Ennis Safety blasting-powder stick
US2052546A (en) * 1934-04-05 1936-09-01 Brandt Edgar William Propulsive cartridge for projectiles
US2564695A (en) * 1949-01-13 1951-08-21 Jr Arthur C Johnson Plastic cartridge case and method of making same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US88948A (en) * 1869-04-13 Improved material for cartridge-cases
US281730A (en) * 1883-07-24 Railway-car electrical-circuit coupler
US1530692A (en) * 1923-06-27 1925-03-24 Charles L Paulus Reenforced pyrotechnic flare
US1758358A (en) * 1927-12-23 1930-05-13 Henry E Ennis Safety blasting-powder stick
US2052546A (en) * 1934-04-05 1936-09-01 Brandt Edgar William Propulsive cartridge for projectiles
US2564695A (en) * 1949-01-13 1951-08-21 Jr Arthur C Johnson Plastic cartridge case and method of making same

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024780A1 (de) * 1997-11-12 1999-05-20 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Treibladungsbehälter
US6837164B1 (en) * 2002-11-13 2005-01-04 The United States Of America As Represented By The Secretary Of The Army Propelling charge increment protector for 120mm mortar ammunition
AU2005210782B8 (en) * 2004-02-09 2011-03-10 Patria Weapon Systems Oy Increment charge for fin-stabilized mortar projectile
WO2005075933A1 (en) * 2004-02-09 2005-08-18 Patria Weapon Systems Oy Increment charge for fin-stabilized mortar projectile
US20050268806A1 (en) * 2004-02-09 2005-12-08 Patria Vammas Oy Increment charge for fin-stabilized mortar projectile
JP2007522429A (ja) * 2004-02-09 2007-08-09 パトリア・ウェポン・システムズ・オサケウフティヨ フィン安定化迫撃砲発射体用のインクリメント式装薬
RU2346233C2 (ru) * 2004-02-09 2009-02-10 Патриа Вэпон Системз Оу Дополнительный заряд для минометного снаряда, имеющего оперение стабилизатора
US7690305B2 (en) * 2004-02-09 2010-04-06 Patria Vammas Oy Increment charge for fin-stabilized mortar projectile
AU2005210782B2 (en) * 2004-02-09 2010-11-11 Patria Weapon Systems Oy Increment charge for fin-stabilized mortar projectile
US7059251B1 (en) * 2004-09-09 2006-06-13 The United States Of America As Represented By The Secretary Of The Army Propelling charge support for a mortar cartridge
US20120024141A1 (en) * 2008-10-17 2012-02-02 Rheinmetall Landsysteme Gmbh Weapon system with a carrier vehicle and a preferably vehicle dependent mortar
US8534180B2 (en) * 2008-10-17 2013-09-17 Rheinmetall Landsysteme Gmbh Weapon system with a carrier vehicle and a preferably vehicle dependent mortar
US8707846B2 (en) 2008-11-06 2014-04-29 Rheinmetall Waffe Munition Gmbh Weapon with recoil and braking device, damping this recoil
US8794120B2 (en) 2008-11-06 2014-08-05 Rheinmetall Waffe Munition Gmbh Mortar
US9121667B1 (en) 2008-11-06 2015-09-01 Rheinmetall Waffe Munition Gmbh Mortar
RU2601662C1 (ru) * 2015-05-21 2016-11-10 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") ЕДИНЫЙ ПОЛНЫЙ ПЕРЕМЕННЫЙ ЗАРЯД МИНОМЁТНОГО 82-мм ВЫСТРЕЛА
US12276488B1 (en) * 2022-09-22 2025-04-15 The United States Of America As Represented By The Secretary Of The Army Multi-compartment mortar increment container

Also Published As

Publication number Publication date
GB949111A (en) 1964-02-12
NL260461A (enrdf_load_stackoverflow)
BE598933A (fr) 1961-05-02
NL124085C (enrdf_load_stackoverflow)
ES264178A1 (es) 1961-03-16
FR1255494A (fr) 1961-03-10
CH364716A (fr) 1962-09-30

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