FR1215579A - Dispositif de soutènement pour mines - Google Patents

Dispositif de soutènement pour mines

Info

Publication number
FR1215579A
FR1215579A FR766669A FR766669A FR1215579A FR 1215579 A FR1215579 A FR 1215579A FR 766669 A FR766669 A FR 766669A FR 766669 A FR766669 A FR 766669A FR 1215579 A FR1215579 A FR 1215579A
Authority
FR
France
Prior art keywords
mines
support system
support
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
FR766669A
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 Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Application granted granted Critical
Publication of FR1215579A publication Critical patent/FR1215579A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR766669A 1957-05-29 1958-05-29 Dispositif de soutènement pour mines Expired FR1215579A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215579X 1957-05-29

Publications (1)

Publication Number Publication Date
FR1215579A true FR1215579A (fr) 1960-04-19

Family

ID=10883211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR766669A Expired FR1215579A (fr) 1957-05-29 1958-05-29 Dispositif de soutènement pour mines

Country Status (1)

Country Link
FR (1) FR1215579A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152377B (de) * 1960-08-31 1963-08-08 H Joe Rheinbay Dipl Ing Hydraulisch betaetigte Vorrichtung fuer einen wandernden metallischen Ausbaurahmen fuer den Strebabbau
US4848519A (en) * 1984-12-24 1989-07-18 Otis Elevator Company Structural support for hydraulic elevator car

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152377B (de) * 1960-08-31 1963-08-08 H Joe Rheinbay Dipl Ing Hydraulisch betaetigte Vorrichtung fuer einen wandernden metallischen Ausbaurahmen fuer den Strebabbau
US4848519A (en) * 1984-12-24 1989-07-18 Otis Elevator Company Structural support for hydraulic elevator car

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