US3734024A - Powder propellant cartridge - Google Patents

Powder propellant cartridge Download PDF

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Publication number
US3734024A
US3734024A US00188351A US3734024DA US3734024A US 3734024 A US3734024 A US 3734024A US 00188351 A US00188351 A US 00188351A US 3734024D A US3734024D A US 3734024DA US 3734024 A US3734024 A US 3734024A
Authority
US
United States
Prior art keywords
strips
cartridge
powder
tie means
rods
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
US00188351A
Other languages
English (en)
Inventor
H Andersson
G Dahl
C Arnell
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.)
Individual
Original Assignee
Individual
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
Priority claimed from SE04956/70A external-priority patent/SE340768B/xx
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3734024A publication Critical patent/US3734024A/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
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
    • F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
    • F02K9/10—Shape or structure of solid propellant charges
    • F02K9/14—Shape or structure of solid propellant charges made from sheet-like materials, e.g. of carpet-roll type, of layered structure

Definitions

  • a powder propelling cartridge consisting of powder strips or rods uniformly arranged in a cartridge-casing. i521 Cl ..102/100, 102/40
  • the strips or rods are connected to each other by lnt. threads or imilar means are pe pen- [58] Field of Search ..102/ 100, 101, 38, dicularly to longitudinal axis the strips or rods so as to 102/40, 39 form a snow fence-like belt, which is coiled and inserted into the cartridge-casing.
  • the present invention refers to a propelling charge, which consists of powder strips inserted into a cartridge-casing.
  • a propelling charge which consists of powder strips inserted into a cartridge-casing.
  • Such cartridges involve a problem in that the burning of the strips or staves develops irregularly if they cluster within the cartridge casing, filling it irregularly as they often do in ordinary ammunition. This problem is similar to that of burning thick magazines or books.
  • the degree of burning and the actual burning time of the propelling charge may vary to a great extent. which causes great variations of the muzzle velocity of the projectile and a wide scattering and fragmentation upon impact with the target.
  • the strips or rods are sewn together by a number of sewing threads, which are drawn principally perpendicularly to the strips, the strips being arranged at some distance from each other and the construction of threads and strips forming a band is folded and coiled to an approximately cylindrical body having a diameter smaller than the inside diameter of the cartridge-casing so as to enable the cartridge to be placed within the same.
  • This way of fastening the strips or rods is quite suitable for mechanical handling.
  • FIG. 1 shows schematically a sectional view of a cartridge having strips arranged at random. (Only some of the strips are shown.)
  • FIG. 2 shows schematically a sectional view of a cartridge in which the strips are arranged according to the present invention.
  • FIG. 3 shows schematically a part of an uncoiled band of strips sewn together by threads.
  • a number of strips 1 of a propelling powder are fastened to a number of threads 2 by sewing them together to a band so that the strips will be adjusted at some distance from each other.
  • a kind of knots are shaped between the strips contributing to hold the strips apart.
  • the threads 2 joining the strips 1 in spaced relationship are then cut into such lengths that when coiled the band forms a cylindrical body having a diameter that will enable the body to be easily inserted into the cartridge-casing 3.
  • the firing data obtained from practical tests correspond to those of a more active propelling powder, that is, the powder gives off more of its supply of energy, so that a lower muzzle pressure, a more even pressure increase, smaller variations of muzzle velocity and recoil energy, as well as smaller deflection angles are obtained. and Furthermore a reduced ejection volume of propelling powder especially when firing at low temperatures, which is important as sometimes unburnt parts of the strips at low temperatures tend to lock the projectile when reloading the weapon.
  • the invention is not limited to the particular arrangements shown and described.
  • the propelling charge may for instance consist of elements with a shape more like rods than strips and the nature and number of the stitches in each strip may vary.
  • a powder propellant cartridge for insertion into a cartridge casing comprising a plurality of spaced parallel rectangular powder strips interconnected by flexible tie means, said tie means extending across the strips and connecting same in a series to form a continuous train of articulately joined strips, the strips being fastened individually to said tie means, said train of strips being wound substantially into a spiral to form a coil, said tie means having portions extending across and projecting above the surfaces of the strips, spacing the strips from one another in adjacent convolutions to provide venting channels extending axially through the cartridge.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US00188351A 1970-04-10 1971-10-12 Powder propellant cartridge Expired - Lifetime US3734024A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
SE04956/70A SE340768B (enrdf_load_stackoverflow) 1970-04-10 1970-04-10
DE2150161A DE2150161C3 (de) 1970-04-10 1971-10-07 Treibladung
CH1469471 1971-10-08
AT872371A AT315680B (de) 1970-04-10 1971-10-08 Treibladung für eine Patrone, insbesondere für Großkalibermunition
FR7136287A FR2155130A5 (enrdf_load_stackoverflow) 1970-04-10 1971-10-08
GB4702971 1971-10-08
US18835171A 1971-10-12 1971-10-12

Publications (1)

Publication Number Publication Date
US3734024A true US3734024A (en) 1973-05-22

Family

ID=27560455

Family Applications (1)

Application Number Title Priority Date Filing Date
US00188351A Expired - Lifetime US3734024A (en) 1970-04-10 1971-10-12 Powder propellant cartridge

Country Status (7)

Country Link
US (1) US3734024A (enrdf_load_stackoverflow)
AT (1) AT315680B (enrdf_load_stackoverflow)
BE (1) BE773633A (enrdf_load_stackoverflow)
CH (1) CH544283A (enrdf_load_stackoverflow)
DE (1) DE2150161C3 (enrdf_load_stackoverflow)
FR (1) FR2155130A5 (enrdf_load_stackoverflow)
GB (1) GB1327896A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257330A (en) * 1978-01-18 1981-03-24 Forenade Fabriksverken Propelling charge for a recoilless weapon or a rocket and a method to produce the charge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE444724B (sv) * 1982-03-30 1986-04-28 Ffv Affersverket Driv- och tendpatron till vinggranat
AT396992B (de) * 1986-12-04 1994-01-25 Hirtenberger Ag Leuchtgranate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257330A (en) * 1978-01-18 1981-03-24 Forenade Fabriksverken Propelling charge for a recoilless weapon or a rocket and a method to produce the charge

Also Published As

Publication number Publication date
FR2155130A5 (enrdf_load_stackoverflow) 1973-05-18
BE773633A (fr) 1972-01-31
AT315680B (de) 1974-06-10
CH544283A (fr) 1973-12-28
DE2150161C3 (de) 1975-11-27
DE2150161A1 (de) 1973-04-12
DE2150161B2 (de) 1975-04-17
GB1327896A (en) 1973-08-22

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