GB1084942A - Improvements in or relating to blasting - Google Patents

Improvements in or relating to blasting

Info

Publication number
GB1084942A
GB1084942A GB1271/65A GB127165A GB1084942A GB 1084942 A GB1084942 A GB 1084942A GB 1271/65 A GB1271/65 A GB 1271/65A GB 127165 A GB127165 A GB 127165A GB 1084942 A GB1084942 A GB 1084942A
Authority
GB
United Kingdom
Prior art keywords
charge
water
base
blasting
casing
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
GB1271/65A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1084942A publication Critical patent/GB1084942A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/02—Blasting cartridges, i.e. case and explosive adapted to be united into assemblies

Abstract

1,084,942. Blasting cartridges. DYNAMIT NOBEL A.G. Jan. 11, 1965 [Jan. 11, 1964], No. 1271/65. Heading F3A. Apparatus by means of which a borehole is saturated with water, before firing a blasting charge housed within the apparatus, comprises a water ejection means 1 and a blasting cartridge 2 connected together by a member 3. The ejection means 1 can be connected by a union 5 and a nipple 4 to a pressure water supply and comprises a pipe 6 connected to one end of an expansible hose 8 which is connected at its other end to a discharge head 10 having peripheral openings 11. The connection 3 comprises a block 12 with an axial bore 13 leading to a recess housing an electric fuze 28 adjacent the base 19 of the cartridge 2. Base 19 is held to the block 12 by a sleeve 15 and is axially bored to receive a priming charge 29 in communication with a flash tube 24 extending through the main charge 27 (nitrocellulose powder) in a casing 21. Casing 21, which may be integral with the base 19, is made of polyethylene and the tube 24 is made of cardboard. A metal sleeve (not shown) may line the bore for the primer 29 and the casing 21 may be in two or more sections, one section being filled with part of the charge 27 before connection of the next section. When the charge is thus formed, each filled section is closed by a disc before connecting the next section, the disc having a flanged aperture to receive the tube 24. A bayonet connection 18, 20 between the sleeve 15 and base 19 allows storage of the apparatus separately from the fuze, which may be inserted immediately before use and the cartridge 2 may be connected at the last moment to the water-ejection means 1. On insertion in a borehole a gauge is used to check the water pressure built up therein, before manually closing the circuit to the fuze 28. Alternatively a pressure-dependant switch may be used to close the circuit.
GB1271/65A 1964-01-11 1965-01-11 Improvements in or relating to blasting Expired GB1084942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED43329A DE1195696B (en) 1964-01-11 1964-01-11 Device for drenching shooting

Publications (1)

Publication Number Publication Date
GB1084942A true GB1084942A (en) 1967-09-27

Family

ID=7047490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1271/65A Expired GB1084942A (en) 1964-01-11 1965-01-11 Improvements in or relating to blasting

Country Status (7)

Country Link
US (1) US3307445A (en)
BE (1) BE658111A (en)
DE (1) DE1195696B (en)
FR (1) FR1420118A (en)
GB (1) GB1084942A (en)
NL (1) NL6500191A (en)
SE (1) SE309741B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2491402C1 (en) * 2012-04-26 2013-08-27 Игорь Глебович Богданов Bogdanov's method of shaped charge drilling and device for its realisation

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098189A (en) * 1976-09-28 1978-07-04 Harry Holm Method and apparatus for preparing an explosive charge
SU1077373A1 (en) * 1981-12-03 1989-07-15 Украинское отделение Всесоюзного проектно-изыскательского и научно-исследовательского института "Гидропроект" им.С.Я.Жука Deep-well apparatus for breaking solid objects
US4984520A (en) * 1988-08-05 1991-01-15 Schlumberger Technology Corporation Enclosed perforating gun with expendable carrier
US5308149A (en) * 1992-06-05 1994-05-03 Sunburst Excavation, Inc. Non-explosive drill hole pressurization method and apparatus for controlled fragmentation of hard compact rock and concrete
US5765923A (en) * 1992-06-05 1998-06-16 Sunburst Excavation, Inc. Cartridge for generating high-pressure gases in a drill hole
NZ320772A (en) 1995-08-04 2000-02-28 Rockmin Pty Ltd Controlled small charge blasting by explosive
AU721900B2 (en) * 1995-08-07 2000-07-20 Rockmin Pty Ltd Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting
US6102484A (en) * 1996-07-30 2000-08-15 Applied Geodynamics, Inc. Controlled foam injection method and means for fragmentation of hard compact rock and concrete
AUPP021697A0 (en) 1997-11-06 1997-11-27 Rocktek Limited Radio detonation system
US6339992B1 (en) 1999-03-11 2002-01-22 Rocktek Limited Small charge blasting apparatus including device for sealing pressurized fluids in holes
US6375271B1 (en) 1999-04-30 2002-04-23 Young, Iii Chapman Controlled foam injection method and means for fragmentation of hard compact rock and concrete
AUPQ591000A0 (en) 2000-02-29 2000-03-23 Rockmin Pty Ltd Cartridge shell and cartridge for blast holes and method of use
US6679175B2 (en) 2001-07-19 2004-01-20 Rocktek Limited Cartridge and method for small charge breaking
AU2002360870A1 (en) * 2002-01-03 2003-07-15 Nxco International Limited Element for initiating propellant
AU2003200490B2 (en) * 2002-02-20 2008-05-08 Rocktek Ltd. Apparatus and method for fracturing a hard material
GB201100424D0 (en) 2011-01-11 2011-02-23 Green Break Technology Ltd Non-explosive rock breaking

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US949778A (en) * 1909-03-17 1910-02-22 Du Pont Powder Co Mechanism for delivering a plurality of torpedoes simultaneously in a well.
GB125464A (en) * 1916-08-15 1919-04-24 Albert George Midford An Improved Method of and Means for Effecting Boring, Excavating, Mining and similar Operations for Military Purposes.
US2048677A (en) * 1933-06-21 1936-07-28 Sullivan Machinery Co Method and apparatus for blasting
US2383542A (en) * 1943-03-19 1945-08-28 Edwin A Godfrey Paper container for dynamite
US2676662A (en) * 1949-05-17 1954-04-27 Gulf Oil Corp Method of increasing the productivity of wells
US2759418A (en) * 1951-08-14 1956-08-21 Allied Chem & Dye Corp Frozen nitrogen tetroxide-hydrocarbon explosives
US2764939A (en) * 1952-12-22 1956-10-02 American Cyanamid Co Explosive package
US2923238A (en) * 1957-05-07 1960-02-02 Airmite Midwest Inc Spacer primer cartridge for ammonium nitrate
US3070011A (en) * 1960-07-11 1962-12-25 Jersey Prod Res Co Directional drilling with explosive charges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2491402C1 (en) * 2012-04-26 2013-08-27 Игорь Глебович Богданов Bogdanov's method of shaped charge drilling and device for its realisation

Also Published As

Publication number Publication date
SE309741B (en) 1969-03-31
US3307445A (en) 1967-03-07
DE1195696B (en) 1965-07-01
FR1420118A (en) 1965-12-03
NL6500191A (en) 1965-07-12
BE658111A (en) 1965-04-30

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