FR1370522A - Perfectionnement aux dispositifs de soutènement - Google Patents

Perfectionnement aux dispositifs de soutènement

Info

Publication number
FR1370522A
FR1370522A FR949892A FR949892A FR1370522A FR 1370522 A FR1370522 A FR 1370522A FR 949892 A FR949892 A FR 949892A FR 949892 A FR949892 A FR 949892A FR 1370522 A FR1370522 A FR 1370522A
Authority
FR
France
Prior art keywords
support systems
further training
training
systems
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
FR949892A
Other languages
English (en)
Inventor
Jasper
Walter-Jasper
Vom Felde
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 filed Critical
Priority to FR949892A priority Critical patent/FR1370522A/fr
Application granted granted Critical
Publication of FR1370522A publication Critical patent/FR1370522A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/04—Cantilever extension or similar protecting devices for use in longwall working
    • 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
FR949892A 1963-10-08 1963-10-08 Perfectionnement aux dispositifs de soutènement Expired FR1370522A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR949892A FR1370522A (fr) 1963-10-08 1963-10-08 Perfectionnement aux dispositifs de soutènement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR949892A FR1370522A (fr) 1963-10-08 1963-10-08 Perfectionnement aux dispositifs de soutènement

Publications (1)

Publication Number Publication Date
FR1370522A true FR1370522A (fr) 1964-08-21

Family

ID=8813901

Family Applications (1)

Application Number Title Priority Date Filing Date
FR949892A Expired FR1370522A (fr) 1963-10-08 1963-10-08 Perfectionnement aux dispositifs de soutènement

Country Status (1)

Country Link
FR (1) FR1370522A (fr)

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