GB527742A - Improvements in or relating to electric blasting initiators - Google Patents

Improvements in or relating to electric blasting initiators

Info

Publication number
GB527742A
GB527742A GB1184139A GB1184139A GB527742A GB 527742 A GB527742 A GB 527742A GB 1184139 A GB1184139 A GB 1184139A GB 1184139 A GB1184139 A GB 1184139A GB 527742 A GB527742 A GB 527742A
Authority
GB
United Kingdom
Prior art keywords
tube
crimping
blade
plug
relating
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
GB1184139A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB1184139A priority Critical patent/GB527742A/en
Publication of GB527742A publication Critical patent/GB527742A/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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

527,742. Blasting detonators; stamping. DU PONT DE NEMOURS & CO., E.I., HANDFORTH, S. L., and JOHNSON, C. R. April 19, 1939, No. 11841. [Class 9 (i)] [Also in Group XXII] A method of making electric detonators comprises subjecting a cold plug 14 of thermoplastic resin, previously formed about the leading wires 15, to a heating operation sufficient to soften the peripheral portion, and then inserting the plug in the charged detonator tube to the required position and crimping the tube thereon. The crimping apparatus comprises two blades 1, lb slidable through anchoring blocks 10, through which is a central hole 12 to receive the detonator tube. Each blade has an aperture 3 from which lead slots 6, 7 provided with crimping edges 8. On inserting the tube in the opening 12 and moving the blade, the slotted portions move past the tube and form the crimps 13, 13a.
GB1184139A 1939-04-19 1939-04-19 Improvements in or relating to electric blasting initiators Expired GB527742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1184139A GB527742A (en) 1939-04-19 1939-04-19 Improvements in or relating to electric blasting initiators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1184139A GB527742A (en) 1939-04-19 1939-04-19 Improvements in or relating to electric blasting initiators

Publications (1)

Publication Number Publication Date
GB527742A true GB527742A (en) 1940-10-15

Family

ID=9993667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1184139A Expired GB527742A (en) 1939-04-19 1939-04-19 Improvements in or relating to electric blasting initiators

Country Status (1)

Country Link
GB (1) GB527742A (en)

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