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FR708219A - Safety device for explosive charges used in mines and other similar operations - Google Patents

Safety device for explosive charges used in mines and other similar operations

Info

Publication number
FR708219A
FR708219A FR708219DA FR708219A FR 708219 A FR708219 A FR 708219A FR 708219D A FR708219D A FR 708219DA FR 708219 A FR708219 A FR 708219A
Authority
FR
France
Prior art keywords
mines
safety device
similar operations
explosive charges
charges used
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)
Inventor
Walter Voortmann
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 filed Critical
Application granted granted Critical
Publication of FR708219A publication Critical patent/FR708219A/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
    • F42D1/18—Plugs for boreholes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/06—Unloading boreholes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
FR708219D 1930-03-06 1930-12-22 Safety device for explosive charges used in mines and other similar operations Expired FR708219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE573596T 1930-03-06

Publications (1)

Publication Number Publication Date
FR708219A true FR708219A (en) 1931-07-21

Family

ID=34584635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR708219D Expired FR708219A (en) 1930-03-06 1930-12-22 Safety device for explosive charges used in mines and other similar operations

Country Status (4)

Country Link
BE (1) BE375512A (en)
DE (1) DE573596C (en)
FR (1) FR708219A (en)
GB (1) GB358369A (en)

Also Published As

Publication number Publication date
BE375512A (en)
GB358369A (en) 1931-10-08
DE573596C (en) 1933-04-03

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