FR826953A - Perfectionnement aux machines électriques d'allumage de mines - Google Patents

Perfectionnement aux machines électriques d'allumage de mines

Info

Publication number
FR826953A
FR826953A FR826953DA FR826953A FR 826953 A FR826953 A FR 826953A FR 826953D A FR826953D A FR 826953DA FR 826953 A FR826953 A FR 826953A
Authority
FR
France
Prior art keywords
further training
electric mine
ignition machines
mine ignition
machines
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
English (en)
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.)
Schaffler & Co
Original Assignee
Schaffler & 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 Schaffler & Co filed Critical Schaffler & Co
Application granted granted Critical
Publication of FR826953A publication Critical patent/FR826953A/fr
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
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Direct Current Motors (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Dc Machiner (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
FR826953D 1937-04-15 1937-09-20 Perfectionnement aux machines électriques d'allumage de mines Expired FR826953A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT151994T 1937-04-15

Publications (1)

Publication Number Publication Date
FR826953A true FR826953A (fr) 1938-04-13

Family

ID=3646904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR826953D Expired FR826953A (fr) 1937-04-15 1937-09-20 Perfectionnement aux machines électriques d'allumage de mines

Country Status (5)

Country Link
US (1) US2129835A (de)
AT (1) AT151994B (de)
DE (1) DE661149C (de)
FR (1) FR826953A (de)
GB (1) GB484960A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458687A (en) * 1945-03-01 1949-01-11 Alfred U Davis Blasting machine
US2527148A (en) * 1946-01-04 1950-10-24 Olive S Petty Apparatus for separation of blasting circuit leads
US3311788A (en) * 1964-07-23 1967-03-28 Milton D Faige System for firing series-circuit blasting caps

Also Published As

Publication number Publication date
US2129835A (en) 1938-09-13
GB484960A (en) 1938-05-12
DE661149C (de) 1938-06-11
AT151994B (de) 1937-12-27

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