GB637332A - Improved detonating explosive charges and method of using said charges to impress surfaces - Google Patents

Improved detonating explosive charges and method of using said charges to impress surfaces

Info

Publication number
GB637332A
GB637332A GB26791/47A GB2679147A GB637332A GB 637332 A GB637332 A GB 637332A GB 26791/47 A GB26791/47 A GB 26791/47A GB 2679147 A GB2679147 A GB 2679147A GB 637332 A GB637332 A GB 637332A
Authority
GB
United Kingdom
Prior art keywords
charge
base
composite
conical
detonation
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
Application number
GB26791/47A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB26791/47A priority Critical patent/GB637332A/en
Priority to US41605A priority patent/US2604042A/en
Publication of GB637332A publication Critical patent/GB637332A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
    • B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/701—Charge wave forming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • Y10T29/49806—Explosively shaping

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

637,332. Blasting charges. COOK, J. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 6, 1947, No. 26791. [Class 9 (i)] [Also in Group XXII] A composite explosive charge giving a plane detonation wave-front and used to transfer a design from a stencil to a metal plate has a conical core with a plane base, the curved surface of the cone being covered by a uniform layer of explosive of higher detonation velocity than the core, the sine of the base angle of the cone being equal to the quotient of the detonation velocities of the two explosives. A cardboard container 3 with a base 6 contains a composite explosive charge over a cylindrical charge 5<SP>2</SP>, the composite charge being a conical charge 51 covered by a charge 5 of uniform thickness, the respective detonation velocities being 3600, 2300 and 5800 ms. per sec. and the base angle of the cone 23‹ 22<SP>1</SP>. On firing the composite charge by an electric detonator 12 in a tetryl primer 11, a plane detonation wavefront is set up, so that a design on a hard cardboard stencil 1 will be embossed on a brass plate 8 without distortion. Partitions 4, 41 of stiff paper cover the conical surfaces and cushioning material 9 is placed between the brass plate and a steel anvil 10. The composite charge may be truncated towards the base by a surface or surfaces perpendicular to the base. The cylindrical charge may be an 80: 20 mixture of trinitrotoluene and sodium chloride, while the core of the conical charge may be a commercial powder and the outer thickness cyclotrimethylene trinitramine.
GB26791/47A 1947-10-06 1947-10-06 Improved detonating explosive charges and method of using said charges to impress surfaces Expired GB637332A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26791/47A GB637332A (en) 1947-10-06 1947-10-06 Improved detonating explosive charges and method of using said charges to impress surfaces
US41605A US2604042A (en) 1947-10-06 1948-07-30 Detonating explosive charge and method of impressing surfaces employing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26791/47A GB637332A (en) 1947-10-06 1947-10-06 Improved detonating explosive charges and method of using said charges to impress surfaces

Publications (1)

Publication Number Publication Date
GB637332A true GB637332A (en) 1950-05-17

Family

ID=10249259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26791/47A Expired GB637332A (en) 1947-10-06 1947-10-06 Improved detonating explosive charges and method of using said charges to impress surfaces

Country Status (2)

Country Link
US (1) US2604042A (en)
GB (1) GB637332A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036373A (en) * 1959-03-31 1962-05-29 Olin Mathieson Metal forming
US3044430A (en) * 1957-10-28 1962-07-17 Frank E Zeigler Shock wave metal forming method and apparatus
US3060879A (en) * 1959-02-04 1962-10-30 Olin Mathieson Explosive forming with inertia means
US3120827A (en) * 1960-04-20 1964-02-11 Moroni T Abegg Method of forming metal plates with explosives
GB2354309A (en) * 1978-05-22 2001-03-21 Hunting Eng Ltd Explosive devices
US20170241754A1 (en) * 2016-02-23 2017-08-24 Lawrence Livermore National Security, Llc Architected materials and structures to control shock output characteristics

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703297A (en) * 1951-03-26 1955-03-01 Kelly L Taulbee Method of hardening manganese steel
US2926604A (en) * 1952-06-30 1960-03-01 Norman A Macleod Explosion propagating device
US2972948A (en) * 1952-09-16 1961-02-28 Raymond H Kray Shaped charge projectile
US4213391A (en) * 1953-05-07 1980-07-22 The United States Of America As Represented By The Secretary Of The Army Anti-tank mine with peripheral charge initiation
US3410212A (en) * 1953-05-07 1968-11-12 Army Usa Anti-tank mine with binary explosive charge
US3906857A (en) * 1953-05-22 1975-09-23 Jr Salvatore Joseph Rotondi Anti-tank mine
US2908222A (en) * 1953-05-25 1959-10-13 Borg Warner Apparatus for detonating shaped explosive charges
US2960902A (en) * 1957-03-04 1960-11-22 Olin Mathieson Explosively actuated fastener
US2999458A (en) * 1958-07-01 1961-09-12 Du Pont Surface wave generator
US3050850A (en) * 1958-08-18 1962-08-28 Nordberg Manufacturing Co Method of truing manganese castings
GB785155A (en) * 1959-01-14 1957-10-23 Borg Warner Improvements in or relating to explosive charges
US2996757A (en) * 1959-05-21 1961-08-22 Albert E Heflin Apparatus for making picture plaques and book covers
US3211094A (en) * 1960-05-18 1965-10-12 Jr Thomas P Liddiard Explosive wave shaper
US3196791A (en) * 1962-06-06 1965-07-27 Francis Method of rupturing walls
US3186304A (en) * 1962-10-22 1965-06-01 Mb Assoc Hypervelocity gun
NL301918A (en) * 1962-12-24
US3154038A (en) * 1963-02-05 1964-10-27 Olin Mathieson Method of embossing sheet metal
US3232221A (en) * 1963-06-28 1966-02-01 Burroughs Corp Explosive marking and printing apparatus
US3377010A (en) * 1963-11-05 1968-04-09 Asahi Chemical Ind Apparatus for spot welding a plurality of metal plates by detonation of an explosive
DE1251986B (en) * 1963-11-13 1967-10-12 Philips Patents erw altung G m b H Hamburg Arrangement for mechanical printing or embossing
US3254564A (en) * 1963-12-04 1966-06-07 Aerojet General Nucleonics Magnetic gradient particle accelerator
DE1241734B (en) * 1965-08-12 1967-06-01 Boelkow Gmbh Detonation system for punctiform initiation of explosive devices and for the generation of detonation waves that subsequently propagate in a rotationally symmetrical manner in the explosive device
US3611932A (en) * 1969-07-03 1971-10-12 Us Navy Shaped wave generator
GB8623365D0 (en) * 1986-09-29 1986-11-05 Explosive Dev Ltd Explosives
FR2667142B1 (en) * 1990-09-20 1994-08-26 Poudres & Explosifs Ste Nale LITTLE VULNERABLE ELEMENT WITH EXPLOSIVE AMMUNITION AND METHOD OF PRIMING A LOW SENSITIVE COMPOSITE EXPLOSIVE LOAD.
US5187319A (en) * 1990-09-20 1993-02-16 Societe Nationale Des Poudres Et Explosifs Low vulnerability component of explosive ammunition and process for initiating a charge of low-sensitivity composite explosive
US5179249A (en) * 1991-04-05 1993-01-12 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Performance of blasting caps
US5233929A (en) * 1992-05-14 1993-08-10 The United States Of America As Represented By The Secretary Of The Navy Booster explosive rings
EP2147730B1 (en) * 2008-07-22 2012-09-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for applying a surface structure to a solid body and use of the method
NO2726704T3 (en) * 2014-07-22 2018-02-24
NZ725004A (en) * 2014-08-06 2018-06-29 Alba Mfg Corp An explosive booster
US9612095B2 (en) * 2014-12-12 2017-04-04 Schlumberger Technology Corporation Composite shaped charges

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE249630C (en) * 1910-12-14
US1642341A (en) * 1925-10-15 1927-09-13 Patrick T Mclaughlin Safety blasting cartridge
US1851122A (en) * 1931-10-29 1932-03-29 Fred Terrigino Blasting cartridge
US1941736A (en) * 1932-03-30 1934-01-02 Metallrelief G M B H Process of producing plastic pictures from metal foil
US1971700A (en) * 1932-07-25 1934-08-28 Wendell August Forge Inc Method of forming ornamental relief figures
FR955041A (en) * 1942-05-21 1950-01-07

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044430A (en) * 1957-10-28 1962-07-17 Frank E Zeigler Shock wave metal forming method and apparatus
US3060879A (en) * 1959-02-04 1962-10-30 Olin Mathieson Explosive forming with inertia means
US3036373A (en) * 1959-03-31 1962-05-29 Olin Mathieson Metal forming
US3120827A (en) * 1960-04-20 1964-02-11 Moroni T Abegg Method of forming metal plates with explosives
GB2354309A (en) * 1978-05-22 2001-03-21 Hunting Eng Ltd Explosive devices
GB2354309B (en) * 1978-05-22 2001-07-04 Hunting Eng Ltd Explosive devices
US20170241754A1 (en) * 2016-02-23 2017-08-24 Lawrence Livermore National Security, Llc Architected materials and structures to control shock output characteristics
US10036616B2 (en) * 2016-02-23 2018-07-31 Lawrence Livermore National Security, Llc Architected materials and structures to control shock output characteristics

Also Published As

Publication number Publication date
US2604042A (en) 1952-07-22

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