FR50360E - Metal sleeper for shoring, especially for mine breakers - Google Patents

Metal sleeper for shoring, especially for mine breakers

Info

Publication number
FR50360E
FR50360E FR50360DA FR50360E FR 50360 E FR50360 E FR 50360E FR 50360D A FR50360D A FR 50360DA FR 50360 E FR50360 E FR 50360E
Authority
FR
France
Prior art keywords
shoring
breakers
mine
metal sleeper
sleeper
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
Pierre-Rene Borrel
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.)
MINES DOMANIALES DE POTASSE
Original Assignee
MINES DOMANIALES DE POTASSE
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 MINES DOMANIALES DE POTASSE filed Critical MINES DOMANIALES DE POTASSE
Application granted granted Critical
Publication of FR50360E publication Critical patent/FR50360E/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/48—Chocks or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR50360D 1938-11-16 1938-11-16 Metal sleeper for shoring, especially for mine breakers Expired FR50360E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50360T 1938-11-16

Publications (1)

Publication Number Publication Date
FR50360E true FR50360E (en) 1940-04-12

Family

ID=8685373

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50360D Expired FR50360E (en) 1938-11-16 1938-11-16 Metal sleeper for shoring, especially for mine breakers

Country Status (1)

Country Link
FR (1) FR50360E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937281C (en) * 1953-05-20 1956-01-05 Becorit Grubenausbau Gmbh Hiking box
DE1011831B (en) * 1953-10-21 1957-07-11 Mining Engineering Co Ltd Base body for hiking pillars

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937281C (en) * 1953-05-20 1956-01-05 Becorit Grubenausbau Gmbh Hiking box
DE1011831B (en) * 1953-10-21 1957-07-11 Mining Engineering Co Ltd Base body for hiking pillars

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