FR1265718A - étai hydraulique de mines - Google Patents

étai hydraulique de mines

Info

Publication number
FR1265718A
FR1265718A FR836451A FR836451A FR1265718A FR 1265718 A FR1265718 A FR 1265718A FR 836451 A FR836451 A FR 836451A FR 836451 A FR836451 A FR 836451A FR 1265718 A FR1265718 A FR 1265718A
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
FR836451A
Other languages
English (en)
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.)
Acrow Engineers Ltd
Original Assignee
Acrow Engineers Ltd
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 GB2872359A external-priority patent/GB962542A/en
Application filed by Acrow Engineers Ltd filed Critical Acrow Engineers Ltd
Priority to FR836451A priority Critical patent/FR1265718A/fr
Application granted granted Critical
Publication of FR1265718A publication Critical patent/FR1265718A/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)
FR836451A 1959-08-21 1960-08-22 étai hydraulique de mines Expired FR1265718A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR836451A FR1265718A (fr) 1959-08-21 1960-08-22 étai hydraulique de mines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2872359A GB962542A (en) 1959-08-21 1959-08-21 Improvements in and relating to hydraulic props
FR836451A FR1265718A (fr) 1959-08-21 1960-08-22 étai hydraulique de mines

Publications (1)

Publication Number Publication Date
FR1265718A true FR1265718A (fr) 1961-06-30

Family

ID=26187227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836451A Expired FR1265718A (fr) 1959-08-21 1960-08-22 étai hydraulique de mines

Country Status (1)

Country Link
FR (1) FR1265718A (fr)

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