GB772413A - Method of electrical ignition of explosives - Google Patents

Method of electrical ignition of explosives

Info

Publication number
GB772413A
GB772413A GB32360/55A GB3236055A GB772413A GB 772413 A GB772413 A GB 772413A GB 32360/55 A GB32360/55 A GB 32360/55A GB 3236055 A GB3236055 A GB 3236055A GB 772413 A GB772413 A GB 772413A
Authority
GB
United Kingdom
Prior art keywords
igniters
lecher
generator
points
aerial
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
GB32360/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB772413A publication Critical patent/GB772413A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00Electric fuzes
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00Respiratory apparatus
    • A62B7/08Respiratory apparatus containing chemicals producing oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/10Initiators therefor
    • F42B3/18Safety initiators resistant to premature firing by static electricity or stray currents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/045Arrangements for electric ignition
    • F42D1/05Electric circuits for blasting
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

772,413. Blasting fuzes. DOERPING- HAUS, E. H. Nov. 11, 1955 [Nov. 11, 1954], No. 32360/55. Class 9 (1). Electric igniters 3 for igniting detonating charges 2 embedded in explosive charges 1 held in boreholes 7 by tamping 6 are connected to Lecher lines 8 which are shortcircuited by bridges 11, 12. The lines 8 have coupling points 9, 10 intermediate the shortcircuits and the igniters, the distances L1, L2, between the points 9, 10 and the bridges 11, 12 determining the resonance frequency of the respective igniters. One wire of each Lecher line is connected to an aerial A1, A2 respectively, the other wires being connected to a common earth El, 2. A variable high frequency generator G has an earth Es and an aerial As in circuit with a switch S. Thus by varying the frequency of the generator, igniters of differing resonance frequencies can be ignited. In Fig. 2 the generator 16 and the Lecher systems of the igniters are connected in parallel by a Lecher line 15 coupled to the points 13, 14.
GB32360/55A 1954-11-11 1955-11-11 Method of electrical ignition of explosives Expired GB772413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH772413X 1954-11-11

Publications (1)

Publication Number Publication Date
GB772413A true GB772413A (en) 1957-04-10

Family

ID=89770544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32360/55A Expired GB772413A (en) 1954-11-11 1955-11-11 Method of electrical ignition of explosives

Country Status (5)

Country Link
AT (1) AT193286B (en)
BE (1) BE542693A (en)
DE (1) DE961958C (en)
FR (1) FR1138913A (en)
GB (1) GB772413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780654A (en) * 1971-10-15 1973-12-25 Oki Electric Ind Co Ltd Remote detonation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780654A (en) * 1971-10-15 1973-12-25 Oki Electric Ind Co Ltd Remote detonation system

Also Published As

Publication number Publication date
BE542693A (en) 1959-09-11
DE961958C (en) 1957-04-11
FR1138913A (en) 1957-06-21
AT193286B (en) 1957-11-25

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