GB1212210A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1212210A
GB1212210A GB44867/67A GB4486767A GB1212210A GB 1212210 A GB1212210 A GB 1212210A GB 44867/67 A GB44867/67 A GB 44867/67A GB 4486767 A GB4486767 A GB 4486767A GB 1212210 A GB1212210 A GB 1212210A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
oct
advancing
compensating
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
GB44867/67A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB1212210A publication Critical patent/GB1212210A/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
    • E21D23/04—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
    • E21D23/0418—Positioning devices and stabilizing means for the props
    • 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

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)
  • Fluid-Pressure Circuits (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

1,212,210. Advancing mine roof supports. BERGWERKSVERBAND G.m.b.H. 3 Oct., 1967 [20 Oct., 1966], No. 44867/67. Heading E1P. In a telescopic mine roof support frame 1-6 having upper and lower advancing jacks R 1 , R 2 arranged as shown, vertical misalignment of the front prop 2 is transmitted by an adjustable feeler F 1 to a compensating valve V controlling the supply of fluid to the jack R 1 for re-alignment purposes. A like compensating arrangement may be disposed between two frames arranged in parallel for stepwise movement, see Figs. 2 and 3 (not shown).
GB44867/67A 1966-10-20 1967-10-03 Mine roof supports Expired GB1212210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB89452A DE1296592B (en) 1966-10-20 1966-10-20 Expansion frame

Publications (1)

Publication Number Publication Date
GB1212210A true GB1212210A (en) 1970-11-11

Family

ID=6984774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44867/67A Expired GB1212210A (en) 1966-10-20 1967-10-03 Mine roof supports

Country Status (3)

Country Link
US (1) US3436922A (en)
DE (1) DE1296592B (en)
GB (1) GB1212210A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2056580A6 (en) * 1969-08-06 1971-05-14 Bergwerksverband Gmbh
JPS5715278B2 (en) * 1973-07-14 1982-03-29
DE2917609C2 (en) * 1979-05-02 1985-12-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Device for controlling the pre-pledging caps of a walking support depending on the progress of the dismantling
DE3002818C2 (en) * 1980-01-26 1984-02-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Device for controlling hydraulic feed cylinders, in particular for the feed of sliding caps of a walking support
DE3141040C1 (en) * 1981-10-15 1983-03-31 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Hydraulic expansion frame
GB2121852B (en) * 1982-06-11 1985-07-31 Coal Ind Mining equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295331A (en) * 1963-04-05 1967-01-03 Gewerk Eisenhuette Westfalia Movable mining support
DE1224249B (en) * 1965-05-31 1966-09-08 Hermann Schwarz Kommanditgesel Extension frame for a progressive pit extension

Also Published As

Publication number Publication date
US3436922A (en) 1969-04-08
DE1296592B (en) 1969-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees