FR1452508A - hydraulic mine prop - Google Patents

hydraulic mine prop

Info

Publication number
FR1452508A
FR1452508A FR37010A FR37010A FR1452508A FR 1452508 A FR1452508 A FR 1452508A FR 37010 A FR37010 A FR 37010A FR 37010 A FR37010 A FR 37010A FR 1452508 A FR1452508 A FR 1452508A
Authority
FR
France
Prior art keywords
mine prop
hydraulic mine
hydraulic
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
FR37010A
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.)
Rheinstahl Wanheim GmbH
Original Assignee
Rheinstahl Wanheim 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
Priority claimed from DER39565A external-priority patent/DE1212474B/en
Application filed by Rheinstahl Wanheim GmbH filed Critical Rheinstahl Wanheim GmbH
Priority to FR37010A priority Critical patent/FR1452508A/en
Application granted granted Critical
Publication of FR1452508A publication Critical patent/FR1452508A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded

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)
FR37010A 1964-12-30 1965-11-03 hydraulic mine prop Expired FR1452508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR37010A FR1452508A (en) 1964-12-30 1965-11-03 hydraulic mine prop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER39565A DE1212474B (en) 1964-12-30 1964-12-30 Hydraulic pit ram
FR37010A FR1452508A (en) 1964-12-30 1965-11-03 hydraulic mine prop

Publications (1)

Publication Number Publication Date
FR1452508A true FR1452508A (en) 1966-02-25

Family

ID=25991848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR37010A Expired FR1452508A (en) 1964-12-30 1965-11-03 hydraulic mine prop

Country Status (1)

Country Link
FR (1) FR1452508A (en)

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