GB675052A - Improvements in delay electric blasting caps - Google Patents

Improvements in delay electric blasting caps

Info

Publication number
GB675052A
GB675052A GB869750A GB869750A GB675052A GB 675052 A GB675052 A GB 675052A GB 869750 A GB869750 A GB 869750A GB 869750 A GB869750 A GB 869750A GB 675052 A GB675052 A GB 675052A
Authority
GB
United Kingdom
Prior art keywords
per cent
weight
silicon
delay
electric blasting
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
GB869750A
Inventor
Hugh Mowat Kerr
William George Richardson
Hector Andrew Logan
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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian 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
Priority to BE497998D priority Critical patent/BE497998A/xx
Priority to US116066A priority patent/US2586959A/en
Application filed by Canadian Industries Ltd filed Critical Canadian Industries Ltd
Priority to GB869750A priority patent/GB675052A/en
Publication of GB675052A publication Critical patent/GB675052A/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
    • F42B3/10—Initiators therefor
    • F42B3/16—Pyrotechnic delay initiators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Silicon Compounds (AREA)

Abstract

675,052. Blasting fuzes. CANADIAN INDUSTRIES, Ltd. April 6, 1950. No. 8697/50. Class 9 (i). The ventless delay electric blasting cap described in Specification 651,552 is provided with a delay composition 5 consisting of 70-75 per cent by weight of red lead, 30-12 per cent by weight of silicon and 0-18 per cent by weight of an inert diluent. The diluent may be silicon dioxide. For a uniform spacing of “ inch between the delay element 4 and the sulphur plug 9, a table is given showing the mean burning rates for various lengths of three compositions each containing 70 per cent of red lead but differing proportions of silicon and silicon dioxide.
GB869750A 1949-09-16 1950-04-06 Improvements in delay electric blasting caps Expired GB675052A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE497998D BE497998A (en) 1950-04-06
US116066A US2586959A (en) 1949-09-16 1949-09-16 Delay electric blasting cap
GB869750A GB675052A (en) 1950-04-06 1950-04-06 Improvements in delay electric blasting caps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB869750A GB675052A (en) 1950-04-06 1950-04-06 Improvements in delay electric blasting caps

Publications (1)

Publication Number Publication Date
GB675052A true GB675052A (en) 1952-07-02

Family

ID=9857500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB869750A Expired GB675052A (en) 1949-09-16 1950-04-06 Improvements in delay electric blasting caps

Country Status (2)

Country Link
BE (1) BE497998A (en)
GB (1) GB675052A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076542B (en) * 1955-08-03 1960-02-25 Canadian Ind Delay ignition set
RU2731276C2 (en) * 2019-02-12 2020-09-01 Акционерное общество "Научно-производственное предприятие "Краснознаменец" Heat-resistant pyrotechnical percussion composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739929A (en) * 1953-02-26 1955-11-02 Canadian Ind 1954 Ltd Delay electric blasting caps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076542B (en) * 1955-08-03 1960-02-25 Canadian Ind Delay ignition set
RU2731276C2 (en) * 2019-02-12 2020-09-01 Акционерное общество "Научно-производственное предприятие "Краснознаменец" Heat-resistant pyrotechnical percussion composition

Also Published As

Publication number Publication date
BE497998A (en)

Similar Documents

Publication Publication Date Title
GB675052A (en) Improvements in delay electric blasting caps
GB1190062A (en) Sealing Glass Composition
GB634548A (en) Improvements relating to glass compositions
GB574275A (en) Improvements in glasses containing lead
GB708736A (en) Improvements in positive electrodes for alkaline accumulators
CA477645A (en) Methods of increasing combustion efficiency and compositions therefor
CA479261A (en) High explosive compositions
CA472374A (en) Fuel compositions
CA471931A (en) Ignition compositions
CA474151A (en) Packeting of letter mail
CA468604A (en) Ignitible compositions
CA454303A (en) Terminal bushing
CA457660A (en) Gas analyzer
AU152255B2 (en) Improvements in gas burners
CA478478A (en) Unsymmetrical diphenylol methanes
CA478108A (en) Explosive compositions
CA477796A (en) Explosive compositions
CA470618A (en) Compositions comprising blends of resinous butadiene-styrene copolymers and rubbery butadiene-styrene copolymers
AU150252B2 (en) Improvements in gas turbines
CA465680A (en) Furnace electrode regulator
CA454417A (en) Sulphur corrosion in cracking
CA479265A (en) Ignition compositions
AU484851A (en) Improvements in gas burners
AU149330B2 (en) Improvements in or relating to styrene-drying copolymers, and coating and impregnating compositions containing same
CA479523A (en) Accelerating compositions