FR1094586A - étai hydraulique de mine - Google Patents

étai hydraulique de mine

Info

Publication number
FR1094586A
FR1094586A FR1094586DA FR1094586A FR 1094586 A FR1094586 A FR 1094586A FR 1094586D A FR1094586D A FR 1094586DA FR 1094586 A FR1094586 A FR 1094586A
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
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.)
DOWTY AUTO UNITS Ltd
Original Assignee
DOWTY AUTO UNITS 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
Application filed by DOWTY AUTO UNITS Ltd filed Critical DOWTY AUTO UNITS Ltd
Application granted granted Critical
Publication of FR1094586A publication Critical patent/FR1094586A/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)
  • Joints Allowing Movement (AREA)
  • Earth Drilling (AREA)
FR1094586D 1952-12-11 1953-12-11 étai hydraulique de mine Expired FR1094586A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3142852A GB743199A (en) 1952-12-11 1952-12-11 Improvements in hydraulic pit props

Publications (1)

Publication Number Publication Date
FR1094586A true FR1094586A (fr) 1955-05-23

Family

ID=10322954

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1094586D Expired FR1094586A (fr) 1952-12-11 1953-12-11 étai hydraulique de mine

Country Status (2)

Country Link
FR (1) FR1094586A (fr)
GB (1) GB743199A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131625B (de) * 1955-08-13 1962-06-20 Kronprinz Ag Hydraulischer Grubenstempel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB845918A (en) * 1957-02-06 1960-08-24 Dowty Mining Equipment Ltd Improvements in fluid pressure relief valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131625B (de) * 1955-08-13 1962-06-20 Kronprinz Ag Hydraulischer Grubenstempel

Also Published As

Publication number Publication date
GB743199A (en) 1956-01-11

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