FR1182247A - Perfectionnements apportés aux supports de toits pour mines souterraines et applications analogues - Google Patents

Perfectionnements apportés aux supports de toits pour mines souterraines et applications analogues

Info

Publication number
FR1182247A
FR1182247A FR1182247DA FR1182247A FR 1182247 A FR1182247 A FR 1182247A FR 1182247D A FR1182247D A FR 1182247DA FR 1182247 A FR1182247 A FR 1182247A
Authority
FR
France
Prior art keywords
similar applications
roof supports
underground mines
mines
underground
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Application granted granted Critical
Publication of FR1182247A publication Critical patent/FR1182247A/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
    • E21D23/0073—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 with advancing shifting devices connected therewith

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)
FR1182247D 1956-02-28 1957-02-28 Perfectionnements apportés aux supports de toits pour mines souterraines et applications analogues Expired FR1182247A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1182247X 1956-02-28

Publications (1)

Publication Number Publication Date
FR1182247A true FR1182247A (fr) 1959-06-23

Family

ID=10880402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1182247D Expired FR1182247A (fr) 1956-02-28 1957-02-28 Perfectionnements apportés aux supports de toits pour mines souterraines et applications analogues

Country Status (1)

Country Link
FR (1) FR1182247A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279583B (de) * 1960-11-21 1968-10-10 Gutehoffnungshuette Sterkrade Wandernder Strebausbau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279583B (de) * 1960-11-21 1968-10-10 Gutehoffnungshuette Sterkrade Wandernder Strebausbau

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