US3396659A - Device of inflaming large-bore propelling charge - Google Patents

Device of inflaming large-bore propelling charge Download PDF

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Publication number
US3396659A
US3396659A US633291A US63329167A US3396659A US 3396659 A US3396659 A US 3396659A US 633291 A US633291 A US 633291A US 63329167 A US63329167 A US 63329167A US 3396659 A US3396659 A US 3396659A
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US
United States
Prior art keywords
charge
inflaming
container
wall
case
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
US633291A
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English (en)
Inventor
Rune V Akhagen
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.)
Foersvarets Fabriksverk
Original Assignee
Foersvarets Fabriksverk
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 Foersvarets Fabriksverk filed Critical Foersvarets Fabriksverk
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Publication of US3396659A publication Critical patent/US3396659A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
    • F42C19/0834—Arrangements of a multiplicity of primers or detonators dispersed within a propellant charge for increased efficiency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • F42B19/01—Steering control
    • F42B19/08—Steering control with means for preventing rolling or pitching
    • 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
    • F42B5/05—Cartridges, i.e. cases with charge and missile for recoilless guns
    • 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
    • F42B5/26—Cartridge cases
    • 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
    • F42B5/26—Cartridge cases
    • F42B5/32—Cartridge cases for rim fire
    • 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
    • F42B5/26—Cartridge cases
    • F42B5/36—Cartridge cases modified for housing an integral firing-cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/10—Percussion caps

Definitions

  • ABSTRACT OF THE DISCLOSURE Large bore ammunition having an inflaming charge enclosed in container, which is fixed to the bottom or mantle wall of a charge case and covers only a small part of the bottom of the case but which is enclosed by a box covering the whole area of the bottom of the case.
  • the container walls adjoining the room of the box are weak so as to be broken through and allow combustion gases and burning particles of the inflaming charge to enter the box before escaping to the propelling charge room.
  • the present invention relates to large-bore ammunition having a gunpowder propelling charge and an inflaming charge, which are enclosed in a charge case having a wall or bottom in which a percussion cap is arranged.
  • Swedish Patent No. 140,549 is shown a device which has generally proved to function satisfactorily.
  • the inflaming charge is arranged in a plastic container, occupying only a minor part of the cross-sectional area of the interior of the charge case and is placed straight in front of the percussion cap.
  • the container is closed by a lid having a discharge opening for the reaction products of the inflaming charge, said opening being dimensioned so as to withhold the major portion of such products for an interval of time.
  • a pressure is built up in the container which furthers a uniform ignition of the charge in it.
  • a device as just described causes the propelling charge to be ignited over a comparatively limited front.
  • the present invention constitutes an improvement over the device disclosed in the above-mentioned Swedish patent.
  • An object of the invention is to eliminate the disadvantages found in the devices of the prior art and on the whole to satisfactorily meet the requirements of inflaming in an article of this kind.
  • FIG. 1 is a sectional view of the rear portion of a charge case, the view being taken substantially on the line 1-1 of FIG. 2, looking in the direction of the arrows, and
  • FIG. 2 shows a top plan View of the section seen in FIG. 1.
  • the drawing shows an inflaming device for ammunition for recoilless weapons of a kind in which ignition is eifected through the mantle wall of the charge case.
  • the device shown in the drawing is connected with the wall 2 and the bottom 6 of a charge case and consists of a receptacle or box 14 having a bottom 1 with a part 12, and which bottom is principally flat, and a cylindrical wall or skirt 3.
  • a plastic container is arranged, the bottom of which conforms to a minor part of the bottom of the box 14 and the wall 9 of the container has a cylindrical shape and is nearly of the same height as the box 14.
  • the container is provided with a lid 7.
  • a connecting tube 4 straight in front of an opening in the wall of the cartridge case, and with an ignition cap 5 located in the tube.
  • the container is more than half filled with an inflaming charge 8.
  • the bottom area 12 of the box 14 is provided with a plurality of small openings 13.
  • the mantle wall 3 of the box is fixed to the bottom of the charge case by an inturned flange 10 and to the mantle wall of the case by an external peripheral flange 11.
  • the thickness of the wall 9 of the container tapers or decreases downward and the wall 9 is thus weaker than the bottom and side wall of the box.
  • the ignited inflaming charge will break through the wall before a considerable part of it has been ignited.
  • the reaction products consisting of burning particles of the charge and combustion gases, gather in the box 14 and are temporarily restrained by its wall and bottom, as only a part of them manage to escape through the openings 13 before the inflaming charge 8 is substantially ignited completely through.
  • the ignition of the propelling charge is effected over a broad front and under the action of a comparatively limited and gradually built-up pressure but at a high temperature of the inflaming gases.
  • the box 14 need not necessarily be fixed to the bottom of the cartridge case but only to the mantle wall.
  • the container 1, 9 may be manufactured separately and attached to the bottom or mantle wall of the box for example, by gluing. It may have a shape other than cylindrical and may be positioned differently than shown, but only if it is arranged so that the inflaming charge is within reach of the percussion cap.
  • a charge for the inflaming of a large-bore propelling charge enclosed in a charge case having a propelling charge room and provided with a percussion cap said device comprising a container, the container having an inflaming charge and being connected to the charge case, said container occupying only a minor portion of the cross-sectional interior of the charge case and communicating with the percussion cap, the container being more than half filled with the infiaming charge, said container having a receptacle disposed around it and which receptacle occupies substantially the whole cross-sectional shape of the interior of the charge case, the receptacle having a circumferential wall disposed adjacent to an interior wall surface of the charge case, the container having a side wall encircled by and spaced from the circumferential wall of the receptacle, the receptacle having a plurality of small gas-escape openings, the side wall of the container being materially Weaker than the circumferential wall of the receptacle so that the combustion products of the
  • a charge for the inflaming of a large-bore propelling charge in a charge case having a propelling charge room and provided with a percussion cap comprising a cylindrical container holding an inflaming charge and being connected to the charge case, the container being disposed within a cup-shaped receptacle and being of smaller diameter than the interior diameter of the References Cited UNITED STATES PATENTS 2,289,318 7/ 1942 Pratt 10239 3,295,448 1/ 1967 Giihle 1O239 FOREIGN PATENTS 140,549 5/ 1953 Sweden.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Air Bags (AREA)
  • Mold Materials And Core Materials (AREA)
US633291A 1966-04-22 1967-04-24 Device of inflaming large-bore propelling charge Expired - Lifetime US3396659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE546166 1966-04-22

Publications (1)

Publication Number Publication Date
US3396659A true US3396659A (en) 1968-08-13

Family

ID=20266519

Family Applications (1)

Application Number Title Priority Date Filing Date
US633291A Expired - Lifetime US3396659A (en) 1966-04-22 1967-04-24 Device of inflaming large-bore propelling charge

Country Status (9)

Country Link
US (1) US3396659A (da)
BE (1) BE697356A (da)
CH (1) CH463320A (da)
DE (1) DE1578138B1 (da)
DK (1) DK126449B (da)
ES (1) ES338983A1 (da)
GB (1) GB1174275A (da)
NL (1) NL157713B (da)
NO (1) NO118532B (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460618A (en) * 1944-08-09 1949-02-01 Ciba Ltd Triazine azo dyes
US3613588A (en) * 1969-08-04 1971-10-19 Forsvarets Fabriksverk Replaceable ignition unit for a recoilless gun cartridge
US3678857A (en) * 1971-02-26 1972-07-25 Susquehanna Corp Aerosol disseminator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702554B1 (fr) * 1993-03-08 1995-04-28 Giat Ind Sa Munition, en particulier pour arme de gros calibre.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289318A (en) * 1932-12-14 1942-07-07 Atlas Powder Co Propellent fuel cartridge
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
CH140549A (de) * 1929-05-04 1930-06-15 Hottinger Walter Vorrichtung zum Halten und Heben von Säcken.
FR1330198A (fr) * 1962-05-07 1963-06-21 Hotchkiss Brandt Cartouche perfectionnée pour projectile de mortier
DE1428665A1 (de) * 1963-06-01 1968-12-12 Dynamit Nobel Ag Abschusspatrone fuer Werfergranaten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289318A (en) * 1932-12-14 1942-07-07 Atlas Powder Co Propellent fuel cartridge
US3295448A (en) * 1963-10-31 1967-01-03 Rheinmetall Gmbh Blank shell for guns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460618A (en) * 1944-08-09 1949-02-01 Ciba Ltd Triazine azo dyes
US3613588A (en) * 1969-08-04 1971-10-19 Forsvarets Fabriksverk Replaceable ignition unit for a recoilless gun cartridge
US3678857A (en) * 1971-02-26 1972-07-25 Susquehanna Corp Aerosol disseminator

Also Published As

Publication number Publication date
ES338983A1 (es) 1968-04-16
GB1174275A (en) 1969-12-17
CH463320A (fr) 1968-09-30
NO118532B (da) 1970-01-05
DK126449B (da) 1973-07-16
BE697356A (da) 1967-10-02
DE1578138B1 (de) 1971-09-30
NL6705670A (da) 1967-10-23
NL157713B (nl) 1978-08-15

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