US2863391A - Booby trap for mines - Google Patents

Booby trap for mines Download PDF

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Publication number
US2863391A
US2863391A US585745A US58574556A US2863391A US 2863391 A US2863391 A US 2863391A US 585745 A US585745 A US 585745A US 58574556 A US58574556 A US 58574556A US 2863391 A US2863391 A US 2863391A
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US
United States
Prior art keywords
fuse
primer
mine
mines
booby
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Expired - Lifetime
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US585745A
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English (en)
Inventor
Diels Albert
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.)
Poudreries Reunies De Belgique S A
PRB NV
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PRB NV
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Publication date
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Publication of US2863391A publication Critical patent/US2863391A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00—Mechanical fuzes characterised by the ammunition class or type
    • F42C14/08—Mechanical fuzes characterised by the ammunition class or type for land mines

Definitions

  • the present invention relates to land mines, such as anti-tank and anti-personnel mines, and more particularly to booby traps for such mines to prevent their safe removal.
  • the booby trap for the mine comprises a fuse mounted in the bottom of the mine, a release means for the fuse, and at least one outwardly pivotable member engaging the release means in locked position and releasing said means to ignite the fuse when the member is pivoted outwardly upon lifting of the mine.
  • Application Serial No. 482,593 discloses a magnetically non-reactive fuse for land mines and the like explosive charges, which fuse comprises a fuse cap, a cover plate provided in said fuse cap, said cover plate breaking off said fuse cap when exposed to a predetermined external pressure, a hook-like extension attached to said cover plate and, on breaking of said cover plate, moving together with said cover plate in downward direction, a firing-pin spring provided and firmly attached to the side wall of said fuse cap, said firing-pin spring made of resilient material and, in cocked position, being held and locked by said hook-like extension, said hook-like extension, on downward movement, releasing said firingpin spring, a detonator charge arranged in said fuse cap, and a primer pellet attached to said detonator charge and positioned in the path of the released firing-pin spring so as to be struck by the firing pin of the released spring, said fuse being attached to an explosive charge.
  • Non-magnetic fuse for igniting an explosive charge
  • which fuse comprises, for instance, a casing, a primer charge mounted in said casing, a pair of non-magnetic springs each carrying a striker mounted in said casing for horizontal movement adjacent the primer charge, vertically movable spring retaining means for holding the springs in cocked position out of contact with the primer charge in a normal, upper position of the retaining means
  • said retaining means including a pressure member slidably mounted in the casing and an annular skirt integral with the pressure member, said skirt having a pair of side windows positioned above the primer charge in said upper position of the pressure member and permitting propulsion of the strikers therethrough and into contact with the primer charge in a depressed position of the pressure member, and a frangible pin for maintaining the pressure member in said upper position unless sufiicient pressure is applied thereto to break the pin.
  • Fig. 1 is a longitudinal section of the booby trap device
  • Fig. 2 is a section along line IIII of Fig. 1;
  • Fig. 3 is a longitudinal section of an anti-tank mine incorporating the booby trap device of Fig. 1.
  • a casing 10 carrying at its bottom two superposed, interdigitan ing plates 1, 1 hingedly mounted at respective pivots 1a and 10 for outward pivotal movement in the direction of the arrows 9 and 9'.
  • the plates are secured against pivoting by a safety device including a bolt 12 engaging the plate 1 with its head 11, the bolt being mounted in transverse bores in plates 1 and 1.
  • An annular wedge member 13 is positioned on the free end of the bolt whereby the plates 1 and 1' are wedged be tween bolt head 11 and member 13 when the cotter pin 2 is positioned in an oblique diametrical bore in bolt 12 and engaged with member 13.
  • Cup-shaped member 3 is vertically slidably mounted in casing 10.
  • the cup-shaped member has a spring seat 3a to position coil spring 14 in the member, the spring being biased to press the member outwardly against the pivotable plates.
  • Cover 10a of the casing is provided with an inwardly projecting dome member 15 which serves as a bearing for the cup-shaped member and in whose interior there is arranged the primer charge 5.
  • Strikers 4 a nd 4' are formed by the ends of tension springs pivoted to plate 16 at 7 and 7', respectively.
  • the plate is bolted to cover 1011 at 17, 17 and a compression spring 18 maintains the tension spring in horizontal position.
  • Detonator 6 is arranged in detonator cap 19 threadedly mounted on a threaded socket 20 extending outwardly from cover 10a.
  • a protective cap 21 is threadedly mounted on the detonator cap.
  • the booby trap operates as follows:
  • the device could be constructed with a single pivotable plate instead of two such plates, as shown.
  • Fig. 3 shows the booby trap mounted in an anti-tank mine.
  • the mine comprises a main explosive charge body 22 enveloped in a protective layer 23 which protects the explosive against humic acids.
  • the main extion body 24 provided with a fuse 25.
  • a mine of the type illustrated is fully described and claimed in my copending application Serial No. 585,870, filed on even date and entitled Land 'Mines, but it is obvious that any other type of mine may" be used in'combination with the booby't'r'ap of the present invention.
  • pressure plate 26 with actuating protrusion 26a is resiliently mounted on support frame 27 by means of flexible ring 28.
  • the support frame is positioned on top of the main explosive charge body by means of guide rim 22:21 When a load is applied to pressure plate 26, it will be pressed inwardly against the fuse release plug 250, causing .the mine to explode.
  • booby trap Mounted in the bottom of the main explosive' charge body is the booby trap. of Fig. 1. After the mine is placed in position and pin 2 is removed, detonator 6 will ignite the main explosive when the mine is lifted up, or when the bottom support for pivotable plates 1, 1' is otherwise removed.
  • All the parts of the booby trap and the mine are preferably made of non-magnetic material.
  • Ignition means for the main explosive charge of a land mine comprising a fuse mounted in the bottom of the explosive charge, said fuse including a primer charge, a spring-controlled striker means mounted for horizontal movement adjacent the primer, a retaining member for holding the spring-controlled striker means in cocked position out of contact with theprimer in a normal, upper position of the retaining member, the retaining mem ber being vertically movably mounted below the explosive charge and having aperture means positioned above r 4 the primer in said upper position, biasing means for urging the retaining member downwardly, at least one member pivotably mounted" on said bottom in engagement with said retaining member to secure it in said upper position, and removable means for securing the pivotable member in engagement with the retaining member, removal of said removable means enabling downward swinging of the pivotable member and concomitant downward movement of the retaining member whereby the aperture means permits propulsion of the striker means therethrough into contact with the primer.
  • a booby trap for attachment to the bottom of a land mine comprising a casing having a bottom and a top wall, two superposed retaining plates, hinge means for mounting the retaining plates on the bottom wall of the casing for downward and outward movement of the plates, removable securing means for holding the plates against pivotal movement, a retaining member downwardly 'slidable through an opening in said bottom wall and engaged by one of said plates, biasing means urging the retaining member downwardly against said plates, a primer arranged in said casing, the retaining member having aperture means positioned above the primer when the retaining member is engaged by said plate, a spring-controlled striker means mounted for horizontal movement adjacent the primer and held in cocked position out of contact with the primer by the retaining member in a normal, upper position of the retaining member, and a detonator means mounted on the top wall of the casing in communication with the primer, removal of saidremovable securing means and downward swinging of the pivotable retaining plates causing concomitant downward movement of

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US585745A 1955-05-20 1956-05-18 Booby trap for mines Expired - Lifetime US2863391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2863391X 1955-05-20

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US2863391A true US2863391A (en) 1958-12-09

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US585745A Expired - Lifetime US2863391A (en) 1955-05-20 1956-05-18 Booby trap for mines

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US (1) US2863391A (en, 2012)
LU (1) LU34377A1 (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205817A (en) * 1961-04-27 1965-09-14 Madlener Paul Land mine
US3521563A (en) * 1964-04-04 1970-07-21 Dynamit Nobel Ag Tank mines
US3599570A (en) * 1969-08-28 1971-08-17 Thiokol Chemical Corp Ammunition antidefuzing device
EP0086986A1 (en) * 1982-02-22 1983-08-31 Affärsverket FFV Anti-clearing arrangements for land mines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479861A (en) * 1944-06-22 1949-08-23 Onondaga Pottery Company Land mine
US2488547A (en) * 1944-02-22 1949-11-22 Us Sec War Land mine
US2562928A (en) * 1945-10-10 1951-08-07 Lewis Bernard Grenade
US2678604A (en) * 1945-02-01 1954-05-18 Walker Brooks Land mine fuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488547A (en) * 1944-02-22 1949-11-22 Us Sec War Land mine
US2479861A (en) * 1944-06-22 1949-08-23 Onondaga Pottery Company Land mine
US2678604A (en) * 1945-02-01 1954-05-18 Walker Brooks Land mine fuse
US2562928A (en) * 1945-10-10 1951-08-07 Lewis Bernard Grenade

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205817A (en) * 1961-04-27 1965-09-14 Madlener Paul Land mine
US3521563A (en) * 1964-04-04 1970-07-21 Dynamit Nobel Ag Tank mines
US3599570A (en) * 1969-08-28 1971-08-17 Thiokol Chemical Corp Ammunition antidefuzing device
EP0086986A1 (en) * 1982-02-22 1983-08-31 Affärsverket FFV Anti-clearing arrangements for land mines
US4506603A (en) * 1982-02-22 1985-03-26 Forenade Fabriksverken Arrangement for a land mine

Also Published As

Publication number Publication date
LU34377A1 (en, 2012)

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