GB775342A - Improved method of blasting - Google Patents

Improved method of blasting

Info

Publication number
GB775342A
GB775342A GB2496055A GB2496055A GB775342A GB 775342 A GB775342 A GB 775342A GB 2496055 A GB2496055 A GB 2496055A GB 2496055 A GB2496055 A GB 2496055A GB 775342 A GB775342 A GB 775342A
Authority
GB
United Kingdom
Prior art keywords
blasting
terminals
pipe
referred
head
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
GB2496055A
Inventor
Wilfrid Taylor
Kenneth Ashbrooke Smith
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
Publication of GB775342A publication Critical patent/GB775342A/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
    • F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • F42B3/06—Blasting cartridges, i.e. case and explosive for producing gas under pressure with re-utilisable case
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

775,342. Blasting methods and apparatus. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 20, 1954 [May 18, 1953], No. 24960/55. Divided out of 775,341. Class 9 (1). To transmit a blasting effect through water in a sealed borehole as in Specification 775,341 a re-utilizable blasting device is used in which a gas-producing charge is separated from a venting head by a rupturable disc. The device has a steel casing 1 containing a charge 13 surrounding an electric igniter 12 with leads connected to electrodes 7, 8 and terminals 10, 11. A fibre washer 9 seals the firing head, in which the terminals are protected by a steel cap 3. The rupture disc 5 rests on a fibre sealing washer 6. Leading from the venting head 4 is a pipe 20 extending through stemming into the borehole and connected by a pipe 19 and non-return valve 18 to a pump 16 having a water inlet 15. Specification 731,096 is referred to. Specification 431,948 is referred to in the Provisional Specification.
GB2496055A 1954-01-20 1953-05-18 Improved method of blasting Expired GB775342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1385953A GB775341A (en) 1954-01-20 1954-01-20 Improved method of blasting

Publications (1)

Publication Number Publication Date
GB775342A true GB775342A (en) 1957-05-22

Family

ID=10030675

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2496055A Expired GB775342A (en) 1954-01-20 1953-05-18 Improved method of blasting
GB1385953A Expired GB775341A (en) 1954-01-20 1954-01-20 Improved method of blasting

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1385953A Expired GB775341A (en) 1954-01-20 1954-01-20 Improved method of blasting

Country Status (3)

Country Link
BE (1) BE528938A (en)
FR (1) FR1102658A (en)
GB (2) GB775342A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198213A (en) * 1962-12-21 1965-08-03 Gen Precision Inc Unit area ratio accumulator with fail-safe means
CN103940307A (en) * 2014-04-21 2014-07-23 杨世梁 Blasting method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422967B (en) * 1975-09-19 1982-04-05 Atlas Copco Ab KIT AND DEVICE FOR REPLACING A SOLID MATERIAL
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
FR2554384B1 (en) * 1983-11-07 1987-04-03 Vincent Etienne PROCESS FOR CUTTING A MASS OF COMPACT SOLID MATERIAL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198213A (en) * 1962-12-21 1965-08-03 Gen Precision Inc Unit area ratio accumulator with fail-safe means
CN103940307A (en) * 2014-04-21 2014-07-23 杨世梁 Blasting method
CN103940307B (en) * 2014-04-21 2016-01-20 杨世梁 A kind of blasting method

Also Published As

Publication number Publication date
GB775341A (en) 1957-05-22
BE528938A (en) 1957-04-12
FR1102658A (en) 1955-10-25

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