FR1410610A - hydraulically extendable mine prop - Google Patents

hydraulically extendable mine prop

Info

Publication number
FR1410610A
FR1410610A FR990288A FR990288A FR1410610A FR 1410610 A FR1410610 A FR 1410610A FR 990288 A FR990288 A FR 990288A FR 990288 A FR990288 A FR 990288A FR 1410610 A FR1410610 A FR 1410610A
Authority
FR
France
Prior art keywords
mine prop
hydraulically extendable
extendable
hydraulically
prop
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
FR990288A
Other languages
French (fr)
Inventor
Karl Gerlach
Hans Gerlach
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
Priority claimed from DEG38841A external-priority patent/DE1188023B/en
Application filed filed Critical
Priority to FR990288A priority Critical patent/FR1410610A/en
Application granted granted Critical
Publication of FR1410610A publication Critical patent/FR1410610A/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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
    • E21D15/155—Built-in cleaning devices

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)
FR990288A 1963-10-03 1964-10-03 hydraulically extendable mine prop Expired FR1410610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR990288A FR1410610A (en) 1963-10-03 1964-10-03 hydraulically extendable mine prop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG38841A DE1188023B (en) 1963-10-03 1963-10-03 Hydraulically extendable pit ram
FR990288A FR1410610A (en) 1963-10-03 1964-10-03 hydraulically extendable mine prop

Publications (1)

Publication Number Publication Date
FR1410610A true FR1410610A (en) 1965-09-10

Family

ID=25978563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR990288A Expired FR1410610A (en) 1963-10-03 1964-10-03 hydraulically extendable mine prop

Country Status (1)

Country Link
FR (1) FR1410610A (en)

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