FR991406A - mine prop - Google Patents

mine prop

Info

Publication number
FR991406A
FR991406A FR991406DA FR991406A FR 991406 A FR991406 A FR 991406A FR 991406D A FR991406D A FR 991406DA FR 991406 A FR991406 A FR 991406A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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.)
RECH S IND ET MINIERES SOC ET
Original Assignee
RECH S IND ET MINIERES SOC ET
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 RECH S IND ET MINIERES SOC ET filed Critical RECH S IND ET MINIERES SOC ET
Application granted granted Critical
Publication of FR991406A publication Critical patent/FR991406A/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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
    • 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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/43—Details of wedges
    • 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
    • E21D15/50—Component parts or details of props

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)
FR991406D 1949-04-16 1949-07-27 mine prop Expired FR991406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE991406X 1949-04-16

Publications (1)

Publication Number Publication Date
FR991406A true FR991406A (en) 1951-10-05

Family

ID=6918892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991406D Expired FR991406A (en) 1949-04-16 1949-07-27 mine prop

Country Status (1)

Country Link
FR (1) FR991406A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943102C (en) * 1950-07-29 1956-05-09 Siepmann Werke Ag Profile for pit punches or caps
DE947878C (en) * 1954-01-21 1956-08-23 Gutehoffnungshuette Sterkrade Clamp lock for multi-part pit stamp
DE1166124B (en) * 1954-06-12 1964-03-26 Mannesmann Ag Wedge, especially cross wedge, for metal pit punches

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943102C (en) * 1950-07-29 1956-05-09 Siepmann Werke Ag Profile for pit punches or caps
DE947878C (en) * 1954-01-21 1956-08-23 Gutehoffnungshuette Sterkrade Clamp lock for multi-part pit stamp
DE1166124B (en) * 1954-06-12 1964-03-26 Mannesmann Ag Wedge, especially cross wedge, for metal pit punches

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