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FR786577A - Improvements to anchor devices for mine cartridges - Google Patents

Improvements to anchor devices for mine cartridges

Info

Publication number
FR786577A
FR786577A FR786577DA FR786577A FR 786577 A FR786577 A FR 786577A FR 786577D A FR786577D A FR 786577DA FR 786577 A FR786577 A FR 786577A
Authority
FR
France
Prior art keywords
cartridges
mine
anchor devices
anchor
devices
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
Other languages
French (fr)
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.)
SAFETY MINING CO
Original Assignee
SAFETY MINING 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 SAFETY MINING CO filed Critical SAFETY MINING CO
Application granted granted Critical
Publication of FR786577A publication Critical patent/FR786577A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • 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
    • F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • F42B3/06—Blasting cartridges, i.e. case and explosive for producing gas under pressure with re-utilisable case
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/22—Methods for holding or positioning for blasting cartridges or tamping cartridges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Earth Drilling (AREA)
FR786577D 1934-02-28 1935-02-13 Improvements to anchor devices for mine cartridges Expired FR786577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US713338A US2083733A (en) 1934-02-28 1934-02-28 Anchoring means

Publications (1)

Publication Number Publication Date
FR786577A true FR786577A (en) 1935-09-05

Family

ID=24865747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR786577D Expired FR786577A (en) 1934-02-28 1935-02-13 Improvements to anchor devices for mine cartridges

Country Status (3)

Country Link
US (1) US2083733A (en)
FR (1) FR786577A (en)
GB (1) GB452487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036789B (en) * 1954-09-24 1958-08-21 Ici Ltd Gas pressure explosive device for coal u. Like. With gas outlet openings controlled by a sealing piston

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428884A (en) * 1942-04-17 1947-10-14 Hercules Powder Co Ltd Electric blasting cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036789B (en) * 1954-09-24 1958-08-21 Ici Ltd Gas pressure explosive device for coal u. Like. With gas outlet openings controlled by a sealing piston

Also Published As

Publication number Publication date
GB452487A (en) 1936-08-24
US2083733A (en) 1937-06-15

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