FR1314973A - étançon télescopique - Google Patents

étançon télescopique

Info

Publication number
FR1314973A
FR1314973A FR888227A FR888227A FR1314973A FR 1314973 A FR1314973 A FR 1314973A FR 888227 A FR888227 A FR 888227A FR 888227 A FR888227 A FR 888227A FR 1314973 A FR1314973 A FR 1314973A
Authority
FR
France
Prior art keywords
telescopic prop
prop
telescopic
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
FR888227A
Other languages
English (en)
Inventor
Waldemar Tomeczek
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.)
Hoesch Bergbautechnik GmbH
Original Assignee
Hoesch Bergbautechnik GmbH
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 Hoesch Bergbautechnik GmbH filed Critical Hoesch Bergbautechnik GmbH
Priority to FR888227A priority Critical patent/FR1314973A/fr
Application granted granted Critical
Publication of FR1314973A publication Critical patent/FR1314973A/fr
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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic 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)
FR888227A 1961-02-18 1962-02-16 étançon télescopique Expired FR1314973A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR888227A FR1314973A (fr) 1961-02-18 1962-02-16 étançon télescopique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEH0041738 1961-02-18
FR888227A FR1314973A (fr) 1961-02-18 1962-02-16 étançon télescopique

Publications (1)

Publication Number Publication Date
FR1314973A true FR1314973A (fr) 1963-01-11

Family

ID=25979729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888227A Expired FR1314973A (fr) 1961-02-18 1962-02-16 étançon télescopique

Country Status (1)

Country Link
FR (1) FR1314973A (fr)

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