US2076512A - Blasting equipment - Google Patents

Blasting equipment Download PDF

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Publication number
US2076512A
US2076512A US58432A US5843236A US2076512A US 2076512 A US2076512 A US 2076512A US 58432 A US58432 A US 58432A US 5843236 A US5843236 A US 5843236A US 2076512 A US2076512 A US 2076512A
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US
United States
Prior art keywords
fuses
coils
fuse
chain
laid
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 - Lifetime
Application number
US58432A
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English (en)
Inventor
Schaffler-Glossl Konrad
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
Application granted granted Critical
Publication of US2076512A publication Critical patent/US2076512A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/06—Relative timing of multiple charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/30—Containers for detonators or fuzes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition

Definitions

  • This invention relates'to blasting equipment, and more particularly to electric fuses and their appurtenances.
  • each charge of explosive laid in 'a shot-hole has embedded in it a fuse provided with two current leads, the leads of each two adjacent fuses being laid bare and twisted up together so as to connect the fuses together electrically in series to form a continuous chain.
  • a number, say ten, twenty, fifty, or more, of fuses are linked up in series to form achain and assembled in such a manner that the two wires connecting together any twoconsecutive or adjacent fuses are wound up to form a coil corresponding to the size of the fuse and adapted to provide a recess in which the fuse can be stowed, after which these coils with the fuses between them, are placed one against the other in a tight and continuous row which is held together by a paper strip or the like to form a neat packet suitable for storage and transportation.
  • Fig. 1 is an elevational view showing, by way of comparison, the hitherto usual method of connecting up the fuses by twisting together the bared ends of the leads.
  • Fig. 2 is an elevational view showing the manner in which; according to the invention, each pair of adjacent fuses is connected together by a single uninterrupted piece of wire.
  • Fig. 6 is a perspective view showing a section of a finished packet comprising a chain of fuses stowed between intervening coiled leads and held together by a strip of paper or the like laid around and stuck on.
  • the connecting wires are wound to form coils 5 for example of rectangular cross-section.
  • the individual windings in of the coils 5 are preferably first held together by means of paper strips 6 laid around The coils can then be attached in close juxtaposition, by means of adhesive, on one side, to a paper strip 8, the appropriate fuse inserted into the recess between each coil and the next, and the coils then closed up together on the other side and there held together by thc application of a second adheslve strip 8 (Fig. '6) to form a closed packet.
  • the fuse chain is put up in a form. particularly well suited both for storage i0 and transport, and also for laying at the place 'where it is to be used.
  • a chain assembly made up of a plurality of electric fuses for the ignition of blasting charges
  • said assembly comprising fuses connected by conductors which are continuous their entire length and insulated throughout, said conductors being wound into the form of a coil between each pair of fuses, said coils being laid end to end in contact with one another with the fuses located between and enclosed by the adjacent coils, and fragile means for holding the several coils in their assembled end to end relation.
  • a chain of electric fuses comprising a plurality of fuses connected in series by means of insulated conductor wires, said wires between each pair of fuses being brought into the form of a coil, individual wrappers for the several coils to hold the loops thereof in assembled position, the several coils being-laid end to end in contact and having end depressions in which the fuses are located and enclosed by adjacent coils, and a fragile tie-strip embracing the several coils for holding them in end to end contact, thereby forming a unitary packet.
  • a chain of electric fuses comprising a plurality of fuses connected in series by means of insulated conductor wires, said wires between each pair of fuses being brought into the form of a coil, individual wrappers for the several coils to hold the loops thereof in assembled position, the several coils being laid end to end in contact and having end'depressions in which the fuses are located and enclosed by adjacent coils, and
  • tie-strip embracing the several coils for holding them in end to end contact, thereby forming a unitary packet
  • said tie-strip comprising an adhesive paper strip passed over each of the wrappersof the several coils in virtue of which the coils may be separated at one side while remaining hinged together by the paper strip at the other side.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Wire Processing (AREA)
  • Electromagnets (AREA)
US58432A 1934-10-03 1936-01-09 Blasting equipment Expired - Lifetime US2076512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT2076512X 1934-10-03

Publications (1)

Publication Number Publication Date
US2076512A true US2076512A (en) 1937-04-06

Family

ID=3689788

Family Applications (1)

Application Number Title Priority Date Filing Date
US58432A Expired - Lifetime US2076512A (en) 1934-10-03 1936-01-09 Blasting equipment

Country Status (3)

Country Link
US (1) US2076512A (fr)
DE (1) DE656593C (fr)
FR (1) FR799324A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005036095A3 (fr) * 2003-10-13 2005-07-14 Detnet South Africa Pty Ltd Ensemble detonateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452887A (en) * 1967-08-04 1969-07-01 Beloit Corp Apparatus for loading and transporting tree-length logs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005036095A3 (fr) * 2003-10-13 2005-07-14 Detnet South Africa Pty Ltd Ensemble detonateur
US20070107617A1 (en) * 2003-10-13 2007-05-17 White Michael D E Detonator assembly

Also Published As

Publication number Publication date
FR799324A (fr) 1936-06-11
DE656593C (de) 1938-02-10

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