US2661690A - Land mine - Google Patents

Land mine Download PDF

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Publication number
US2661690A
US2661690A US162288A US16228850A US2661690A US 2661690 A US2661690 A US 2661690A US 162288 A US162288 A US 162288A US 16228850 A US16228850 A US 16228850A US 2661690 A US2661690 A US 2661690A
Authority
US
United States
Prior art keywords
envelope
cover
ribs
mine
land mine
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
US162288A
Other languages
English (en)
Inventor
Diels Albert Fernand Marie
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.)
PRB NV
Poudreries Reunies De Belgique S A
Original Assignee
PRB NV
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 PRB NV filed Critical PRB NV
Application granted granted Critical
Publication of US2661690A publication Critical patent/US2661690A/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
    • F42B23/00—Land mines ; Land torpedoes

Definitions

  • the present invention relates to land mines.
  • a purpose of the invention is to provide an undetectable land mine, that is to say a mine having absolutely not one single metallic element capable of being detected by means of the actually used electro-magnetic detection instruments. It is intended to actuate with a steady pressure exerted by a heavy vehicle.
  • the land mine in accordance with the invention belongs to the type including an envelope, an explosive charge, firing elements, a cover closing the envelope and an elastically deformable ring between the cover and the envelope.
  • the invention is more particularly characterized by the fact that both the envelope and the cover include internal radial members engaging the ring, said members being adapted to elongate the ring when the cover is moved through an external pressure, so as to contact and operate a percussion device.
  • a further purpose of the invention is to avoid the use of a metallic compressing spring intended to act on the percussion device of the land mine. Moreover, the limit of the pressure value necessary for tripping the percussion device can be modified at will, if a set of interchangeable rings of graduated elasticity is available.
  • the elastically deformable ring can be made in the form of a torus or roll, and preferably by means of a sheaf of elastic fibres contained in a textile sheath.
  • the torus rests, on the one hand, on the radial ribs of the envelope and, on the other hand, on the radial ribs of the cover, alternating with the first ones.
  • each cover rib bisects the angle formed by two envelope ribs.
  • the cover includes a central opening closed by a removable stopper or plug, the lower part of which is placed in the vicinity of the percussion device and controls the tripping of the latter, under the eifect of a given pressure exerted on the mine.
  • the percussion only takes place when the pressure exerted brings the mine cover into con- .tact with the percussion device and is sufficient to overcome the force applied to the latter in neutral position. 'The time during which the pressuremust be exerted can, moreover, be governed by the inertia of the percussion mechamsm.
  • the embodiment presents the advantage of rendering the operation of the percussion device independent from the direction in which the external pressure is exerted on the mine cover.
  • Fig. 1 is a front and cross section view of the mine along its axis
  • Fig. 2 is a cross-section taken along the line IIII of Fig. 1;
  • Fig. 3 is a profile view of the cover closing the mine envelope
  • Fig. 4 shows, in a partly torn off front view, the effect of an external pressure P.
  • the mine includes an envelope constituted by two shells: 1 and 2, assembled by means of nonmetallic screws 3 arranged in housings 4 provided for this purpose.
  • a cover 5 closes the envelope 1, and 2, and includes internally radial and vertical ribs 6, which rest on a deformable torus "I, constituted by an aggregate of elastic fibres contained in a textile sheath.
  • the torus l rests on a second set of ribs 6 which are integral with the shell I on the envelope.
  • a removable plug Ill closes the central opening H of the cover and is screwed onto said openmg.
  • the space existing between the lower shell 2 of the envelope and the base of the ribs 9 is filled with the explosive charge [3, Ba, which is introduced, compressed or cast, by an opening made in the lower part of the shell 2, which is subsequently closed by an additional plug IS.
  • the explosive charge includes a main part l3 and a booster 13a fired by a primer Id.
  • the aggregate consisting of the cover 5 and of the envelope 1, 2 is rendered water-tight by means of a washer it made of plastic material (rubber, polyvinyl chloride, etc.). This packing is retained between a circular seat l! of the plug l0 and the cover 5, while its outside periphery is pressed between the mine envelope 1 and a ring 8, of suitable profile, fixed on the shell I by means of non-metallic screws 19.
  • the percussion device includes a cylindrical case 20 which rests on the set of ribs 9 by a seat 21, of a larger diameter, the said case being itself closed by a mobile head 22, the upper convex face of which is at a distance of a few milli-' meters of the lower face of the plug 10.
  • the elastic properties of the torus I causes it to take a serpentine shape, while the base of the plug l0 coming into contact with the head 22, the, latter, by its axial displacement, trips the percussion mechanism and the striker 23 hits the primer [4 which sets fire to the booster l3a and to the main explosive charge 13.
  • a non-metallic land mine comprising an envelope, an explosive and a percussion device in said envelope, an axially movable cover closing said envelope and an elastically deformable rin between said cover and said envelope, said cover and said envelope each having a plurality of integral internal radial ribs engaging said ring, said radial ribs on the cover, alternating with the radial ribs on the envelope to elongate said ring'when said cover is moved through an external pressure so as to contact and operate said percussion device.
  • a non-metallic land mine comprising an envelope, an explosive and a. percussion device in said envelope, an axially movable cover closing said envelope and an elastically deformable ring between said cover and said envelope, said cover and said envelope each having a pluralityof integral internal radial ribs engaging said ring, said radial ribs on'the cover alternating with the radial ribs on the envelope and each rib of the cover bisecting' the angle formed by two successive ribs of the envelope.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Air Bags (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US162288A 1950-03-02 1950-05-16 Land mine Expired - Lifetime US2661690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU670853X 1950-03-02

Publications (1)

Publication Number Publication Date
US2661690A true US2661690A (en) 1953-12-08

Family

ID=40263530

Family Applications (1)

Application Number Title Priority Date Filing Date
US162288A Expired - Lifetime US2661690A (en) 1950-03-02 1950-05-16 Land mine

Country Status (6)

Country Link
US (1) US2661690A (de)
BE (1) BE500376A (de)
CH (1) CH291840A (de)
DE (1) DE860018C (de)
GB (1) GB670853A (de)
LU (1) LU29985A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048194B (de) * 1956-02-15 1958-12-31 Prb Nv Druckdeckel fuer den Zuender einer Landmine
US3098440A (en) * 1959-06-04 1963-07-23 Rheinmetall Gmbh Land mine, more particularly anti-tank mine
US3411445A (en) * 1961-04-27 1968-11-19 Karlsruhe Augsburg Iweka Detonator for land mines
US3521563A (en) * 1964-04-04 1970-07-21 Dynamit Nobel Ag Tank mines
EP0100847A2 (de) * 1982-08-17 1984-02-22 Dynamit Nobel Aktiengesellschaft Mine zur Bekämpfung von Landfahrzeugen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216354A (en) * 1952-07-10 1965-11-09 Marshall P Bearce Land mine
DE1230335B (de) * 1965-01-22 1966-12-08 Assmann Geb Landmine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438307A (en) * 1946-01-10 1948-03-23 Ohio Brass Co Nonmetallic mine
US2488547A (en) * 1944-02-22 1949-11-22 Us Sec War Land mine
US2514401A (en) * 1942-08-17 1950-07-11 Us Sec War Land mine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514401A (en) * 1942-08-17 1950-07-11 Us Sec War Land mine
US2488547A (en) * 1944-02-22 1949-11-22 Us Sec War Land mine
US2438307A (en) * 1946-01-10 1948-03-23 Ohio Brass Co Nonmetallic mine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048194B (de) * 1956-02-15 1958-12-31 Prb Nv Druckdeckel fuer den Zuender einer Landmine
US3098440A (en) * 1959-06-04 1963-07-23 Rheinmetall Gmbh Land mine, more particularly anti-tank mine
US3411445A (en) * 1961-04-27 1968-11-19 Karlsruhe Augsburg Iweka Detonator for land mines
US3521563A (en) * 1964-04-04 1970-07-21 Dynamit Nobel Ag Tank mines
EP0100847A2 (de) * 1982-08-17 1984-02-22 Dynamit Nobel Aktiengesellschaft Mine zur Bekämpfung von Landfahrzeugen
EP0100847A3 (en) * 1982-08-17 1985-03-13 Dynamit Nobel Aktiengesellschaft Mine for fighting land vehicles

Also Published As

Publication number Publication date
GB670853A (en) 1952-04-23
BE500376A (de)
LU29985A1 (de)
DE860018C (de) 1952-12-18
CH291840A (fr) 1953-07-15

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