GB1121555A - Improvements relating to blasting fuses - Google Patents

Improvements relating to blasting fuses

Info

Publication number
GB1121555A
GB1121555A GB33272/65A GB3327265A GB1121555A GB 1121555 A GB1121555 A GB 1121555A GB 33272/65 A GB33272/65 A GB 33272/65A GB 3327265 A GB3327265 A GB 3327265A GB 1121555 A GB1121555 A GB 1121555A
Authority
GB
United Kingdom
Prior art keywords
strip
electrodes
metal strip
fuzeheads
aug
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
GB33272/65A
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.)
Nitroglycerin AB
Original Assignee
Nitroglycerin AB
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 Nitroglycerin AB filed Critical Nitroglycerin AB
Publication of GB1121555A publication Critical patent/GB1121555A/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
    • F42B3/195—Manufacture
    • F42B3/198—Manufacture of electric initiator heads e.g., testing, machines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/0411—Miniature fuses
    • H01H85/0415—Miniature fuses cartridge type
    • H01H85/0417—Miniature fuses cartridge type with parallel side contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49107—Fuse making

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Switches (AREA)
  • Fuses (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

1,121,555. Electric blasting fuzes. NITROGLYCERIN A.B. 4 Aug., 1965 [5 Aug., 1964], No. 33272/65. Heading F3A. Conductors of electric fuzeheads are stamped from a sheet metal strip 1 and a strip 6 of insulating material is secured to each side of metal strip 1 to secure together in pairs the electrodes formed by the stamping. A resistance wire 9 is attached by bending over and soldering the free ends 7 of the electrodes. The wire 9 is then severed between each pair of electrodes and surplus metal strip 1 cut away leaving the pairs of electrodes 11 attached to a narrow border 10. The assembly is then wound into a spiral and the ends 7 dipped in a priming composition to form a bead on the bridge wires 13. After drying and cleaning, the formed fuzeheads are separated. The strip 1 may be made of iron or other magnetic material for easy mounting of the wound strip on a magnetic carrier (15), Fig. 3, not shown, prior to dipping. The turns of the spiral may be held apart by material sandwiched between them.
GB33272/65A 1964-08-05 1965-08-04 Improvements relating to blasting fuses Expired GB1121555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE946964 1964-08-05

Publications (1)

Publication Number Publication Date
GB1121555A true GB1121555A (en) 1968-07-31

Family

ID=20276747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33272/65A Expired GB1121555A (en) 1964-08-05 1965-08-04 Improvements relating to blasting fuses

Country Status (3)

Country Link
US (1) US3421210A (en)
ES (1) ES316132A1 (en)
GB (1) GB1121555A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434548A (en) * 1979-12-03 1984-03-06 Kenneth E. Beswick Limited Method of manufacturing plug-in electrical fuses
GB2204457A (en) * 1987-05-05 1988-11-09 Dubilier Plc Sub-miniature fuse
KR100527853B1 (en) * 2002-03-15 2005-11-09 주식회사 알파이 Method of producing fuses

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1407157A (en) * 1921-06-23 1922-02-21 Atlas Powder Co Electrical fuse head and method of manufacturing same
US1777916A (en) * 1927-03-29 1930-10-07 Schaffler-Glossl Konrad Method of manufacturing low-tension bridge fuses
US2671451A (en) * 1952-06-16 1954-03-09 Stephen J Bolger Remedial pill
GB748675A (en) * 1953-12-09 1956-05-09 Ici Ltd Production of electric fuseheads
US3184655A (en) * 1963-10-10 1965-05-18 Western Electric Co Magnetic holding rack
US3320564A (en) * 1965-03-29 1967-05-16 Eriez Mfg Co Magnetic chuck

Also Published As

Publication number Publication date
US3421210A (en) 1969-01-14
ES316132A1 (en) 1966-05-01

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