GB862210A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB862210A
GB862210A GB12722/57A GB1272257A GB862210A GB 862210 A GB862210 A GB 862210A GB 12722/57 A GB12722/57 A GB 12722/57A GB 1272257 A GB1272257 A GB 1272257A GB 862210 A GB862210 A GB 862210A
Authority
GB
United Kingdom
Prior art keywords
rollers
mine roof
bolster
roof supports
april
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
GB12722/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB862210A publication Critical patent/GB862210A/en
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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/087—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam

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)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

862,210. Mine roof supports. BALTHASAR, K. April 18, 1957 [April 25, 1956], No. 12722/57. Class 20(2) A mine roof is supported by an inflated bolster 5 engaging the floor or roof by rollers 6 and is moved forward with the advance of the coal face by a connection 10 to the coal conveyer 4. The rollers 6 may extend towards the coal face and be supported by hydraulic struts 13. The bolster may be encircled and drawn forward by a band passing round' a roller on the conveyer. A second bolster on top of the first may replace the rollers. In a further modification two bolsters are arranged one behind the other and friction between them is prevented by rollers. '
GB12722/57A 1956-04-25 1957-04-18 Mine roof supports Expired GB862210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE862210X 1956-04-25

Publications (1)

Publication Number Publication Date
GB862210A true GB862210A (en) 1961-03-01

Family

ID=6797491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12722/57A Expired GB862210A (en) 1956-04-25 1957-04-18 Mine roof supports

Country Status (1)

Country Link
GB (1) GB862210A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296110B (en) * 1966-02-19 1969-05-29 Bergwerksverband Gmbh Device for securing the strut area of struts on the offset side with a stroking cut in the steep and half-steep storage
US3978675A (en) * 1974-01-29 1976-09-07 Coal Industry (Patents) Limited Mine roof support equipment
GB2131850A (en) * 1982-12-15 1984-06-27 Monier Ltd Hardenable structures for mine passages
CN106150536A (en) * 2016-08-30 2016-11-23 高净净 A kind of cylinder pressure-bearing arranging device and using method moving frame for advance timbering
CN113622982A (en) * 2021-09-13 2021-11-09 山东科技大学 Supporting device for coal mine composite roof and using method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296110B (en) * 1966-02-19 1969-05-29 Bergwerksverband Gmbh Device for securing the strut area of struts on the offset side with a stroking cut in the steep and half-steep storage
US3978675A (en) * 1974-01-29 1976-09-07 Coal Industry (Patents) Limited Mine roof support equipment
GB2131850A (en) * 1982-12-15 1984-06-27 Monier Ltd Hardenable structures for mine passages
CN106150536A (en) * 2016-08-30 2016-11-23 高净净 A kind of cylinder pressure-bearing arranging device and using method moving frame for advance timbering
CN113622982A (en) * 2021-09-13 2021-11-09 山东科技大学 Supporting device for coal mine composite roof and using method thereof
CN113622982B (en) * 2021-09-13 2023-08-08 山东科技大学 Supporting device for coal mine composite roof and application method thereof

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