FR1083024A - Supports - Google Patents

Supports

Info

Publication number
FR1083024A
FR1083024A FR1083024DA FR1083024A FR 1083024 A FR1083024 A FR 1083024A FR 1083024D A FR1083024D A FR 1083024DA FR 1083024 A FR1083024 A FR 1083024A
Authority
FR
France
Prior art keywords
supports
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.)
Mining Engineering Co Ltd MECO
Original Assignee
Mining Engineering Co Ltd MECO
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 Mining Engineering Co Ltd MECO filed Critical Mining Engineering Co Ltd MECO
Application granted granted Critical
Publication of FR1083024A publication Critical patent/FR1083024A/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
    • E21D15/58—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
    • E21D15/587—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 by means of power accumulators to be pre-charged by rock pressure

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)
FR1083024D 1952-09-05 1953-09-03 Supports Expired FR1083024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1083024X 1952-09-05

Publications (1)

Publication Number Publication Date
FR1083024A true FR1083024A (en) 1955-01-04

Family

ID=10872759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1083024D Expired FR1083024A (en) 1952-09-05 1953-09-03 Supports

Country Status (1)

Country Link
FR (1) FR1083024A (en)

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