FR2360747B1 - - Google Patents

Info

Publication number
FR2360747B1
FR2360747B1 FR7723665A FR7723665A FR2360747B1 FR 2360747 B1 FR2360747 B1 FR 2360747B1 FR 7723665 A FR7723665 A FR 7723665A FR 7723665 A FR7723665 A FR 7723665A FR 2360747 B1 FR2360747 B1 FR 2360747B1
Authority
FR
France
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
FR7723665A
Other languages
French (fr)
Other versions
FR2360747A1 (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.)
GROETSCHEL KARL
Original Assignee
GROETSCHEL KARL
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 GROETSCHEL KARL filed Critical GROETSCHEL KARL
Publication of FR2360747A1 publication Critical patent/FR2360747A1/en
Application granted granted Critical
Publication of FR2360747B1 publication Critical patent/FR2360747B1/fr
Granted 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D19/00—Provisional protective covers for working space
    • E21D19/02—Provisional protective covers for working space for use in longwall working

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)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Tents Or Canopies (AREA)
FR7723665A 1976-07-31 1977-08-01 METHOD AND APPARATUS FOR MAKING A PROTECTIVE FILM COVERING THE ENTIRE SUPPORT OF A SIZED FRONT Granted FR2360747A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2634557A DE2634557C2 (en) 1976-07-31 1976-07-31 Method and device for producing a protective covering covering the entire expansion of a dismantling strut

Publications (2)

Publication Number Publication Date
FR2360747A1 FR2360747A1 (en) 1978-03-03
FR2360747B1 true FR2360747B1 (en) 1983-08-26

Family

ID=5984440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723665A Granted FR2360747A1 (en) 1976-07-31 1977-08-01 METHOD AND APPARATUS FOR MAKING A PROTECTIVE FILM COVERING THE ENTIRE SUPPORT OF A SIZED FRONT

Country Status (5)

Country Link
AT (1) AT354962B (en)
DE (1) DE2634557C2 (en)
FR (1) FR2360747A1 (en)
GB (2) GB1595370A (en)
ZA (1) ZA774601B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936206C2 (en) * 1979-09-07 1981-09-24 Groetschel, Karl Maria, Dipl.-Ing., 8000 München Method and device for the production of a protective covering covering the entire expansion of a strut
DE2945082C2 (en) * 1979-11-08 1981-10-22 Groetschel, Karl Maria, Dipl.-Ing., 8000 München Mat laying device
DE3530469A1 (en) * 1985-08-27 1987-03-05 Niederberg Chemie Nocturnal landfill seals with mining mining

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281978B (en) * 1965-04-21 1968-11-07 Karl Maria Groetschel Dipl Ing Procedure for securing large areas of the hanging slope area exposed in the course of the cutting progress in mining operations
US3902324A (en) * 1973-06-25 1975-09-02 Us Interior Mobile roof supporting shield
DE2426220A1 (en) * 1974-05-29 1975-12-18 Dieter Ing Grad Poller Dust suppression in fully mechanised coalfaces - film lagging drawn off roller and bonded to roof with pressure roller
DE2442177A1 (en) * 1974-09-03 1976-03-11 Roesler Draht Kg PROCESS AND DEVICE TO PREVENT THE DEVELOPMENT OF DUST, IN PARTICULAR ROCK DUST, FROM THE HANGING AND BREAKAGE DURING THE EXTENSION OF SHIELDS OR TREADS, PRIORLY COAL MINING
DE2541534A1 (en) * 1975-09-18 1977-03-31 Karl Maria Dipl Ing Groetschel Mine rise heading protection - has lagging mat at machine front drawn from stock and deflected back as machine advances

Also Published As

Publication number Publication date
AT354962B (en) 1980-02-11
GB1592194A (en) 1981-07-01
ZA774601B (en) 1978-06-28
DE2634557B1 (en) 1977-09-29
DE2634557C2 (en) 1979-06-13
GB1595370A (en) 1981-08-12
FR2360747A1 (en) 1978-03-03
ATA505477A (en) 1979-07-15

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Legal Events

Date Code Title Description
ST Notification of lapse