FR840914A - Metal sleeper for shoring, especially for mine breakers - Google Patents

Metal sleeper for shoring, especially for mine breakers

Info

Publication number
FR840914A
FR840914A FR840914DA FR840914A FR 840914 A FR840914 A FR 840914A FR 840914D A FR840914D A FR 840914DA FR 840914 A FR840914 A FR 840914A
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 FR840914A publication Critical patent/FR840914A/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)
FR840914D 1938-01-05 1938-01-05 Metal sleeper for shoring, especially for mine breakers Expired FR840914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR840914T 1938-01-05

Publications (1)

Publication Number Publication Date
FR840914A true FR840914A (en) 1939-05-08

Family

ID=9304903

Family Applications (1)

Application Number Title Priority Date Filing Date
FR840914D Expired FR840914A (en) 1938-01-05 1938-01-05 Metal sleeper for shoring, especially for mine breakers

Country Status (1)

Country Link
FR (1) FR840914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758402C (en) * 1940-04-18 1954-02-15 Hugo Herzbruch & Soehne Hiking pillar
DE937281C (en) * 1953-05-20 1956-01-05 Becorit Grubenausbau Gmbh Hiking box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758402C (en) * 1940-04-18 1954-02-15 Hugo Herzbruch & Soehne Hiking pillar
DE937281C (en) * 1953-05-20 1956-01-05 Becorit Grubenausbau Gmbh Hiking box

Similar Documents

Publication Publication Date Title
FR810843A (en) Chain conveyor, especially for mine lanes
FR840914A (en) Metal sleeper for shoring, especially for mine breakers
FR50360E (en) Metal sleeper for shoring, especially for mine breakers
FR856663A (en) Safety for bolt
FR883575A (en) metal prop for mines
FR878555A (en) metal prop for mines
FR852054A (en) Construction, especially for underground shelters
FR874528A (en) iron prop for mines
FR832047A (en) ? for mines
CH225827A (en) Carbide turning steel.
FR882040A (en) Iron pole for mines
ES146455A1 (en) A metal sleeper for shoring, especially for mine undercutters.
FR876683A (en) High quality structural steel
FR862557A (en) Cutting chain for mining machines
CA389922A (en) Wedge for concrete tie rods
FR871992A (en) Steel for structural steelwork
CH266381A (en) Block of loose sheets, especially for ring biblorhapte.
FR900811A (en) ejector-blower, especially for locomotives
AT172617B (en) Free cutting steel
CA368668A (en) Wedge for concrete form ties
FR875685A (en) Recovery winch for mine pillars
IE15720L (en) Reinforcement for concrete
FR827440A (en) Mine collector
FR873730A (en) iron prop for mine galleries
FR882285A (en) Steel for aircraft construction