GB1457048A - Mine roof support - Google Patents

Mine roof support

Info

Publication number
GB1457048A
GB1457048A GB3604774A GB3604774A GB1457048A GB 1457048 A GB1457048 A GB 1457048A GB 3604774 A GB3604774 A GB 3604774A GB 3604774 A GB3604774 A GB 3604774A GB 1457048 A GB1457048 A GB 1457048A
Authority
GB
United Kingdom
Prior art keywords
roof support
mine roof
ram
advancing
beam parts
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
GB3604774A
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.)
Rheinstahl AG
Original Assignee
Rheinstahl AG
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 Rheinstahl AG filed Critical Rheinstahl AG
Publication of GB1457048A publication Critical patent/GB1457048A/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
    • E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine

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)
  • Escalators And Moving Walkways (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1457048 Advancing mine roof supports RHEINSTAHL AG 15 Aug 1974 [8 Oct 19731 36047/74 Heading E1P In an advancable mine roof support system for a longwall face comprising a series of roof support units 3, 31, 32 each adapted to be advanced in sequence by its advancing ram 10, each ram is coupled to an abutment beam 4, 41, 42 of multi-part construction wherein each beam part is associated with a roof support unit and the beam parts are pivotably connected to one another as by straps 7 for movement in a plane at right angles to the floor and transverse to the direction of advance. The beam parts have forked ends and are connected to the strap 7 by pins 8 for details of connection &c Figs. 2 and 3, (not shown), should be referred to.
GB3604774A 1973-10-08 1974-08-15 Mine roof support Expired GB1457048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732350401 DE2350401B2 (en) 1973-10-08 1973-10-08 ABSTRACT BEAM TO THE BACK OF THE CONNECTED EXTENSION UNITS AND A STRUT CONVEYOR

Publications (1)

Publication Number Publication Date
GB1457048A true GB1457048A (en) 1976-12-01

Family

ID=5894796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3604774A Expired GB1457048A (en) 1973-10-08 1974-08-15 Mine roof support

Country Status (5)

Country Link
US (1) US3890793A (en)
DE (1) DE2350401B2 (en)
FR (1) FR2246722B1 (en)
GB (1) GB1457048A (en)
ZA (1) ZA746370B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813094C2 (en) * 1978-03-25 1986-12-18 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Connection between an expansion used in underground mining and the conveyor
DE2942943C2 (en) * 1979-10-24 1981-11-26 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Device for maintaining the specified center-to-center distance of the support elements of a step support for the dismantling of long fronts
PL143149B1 (en) * 1983-01-05 1988-01-30 Gewerk Eisenhuette Westfalia Apparatus for supporting roofs in steep deposits in particular in coal seams

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1941094C3 (en) * 1969-08-13 1978-09-14 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Bracing device of a face conveyor in the route

Also Published As

Publication number Publication date
DE2350401B2 (en) 1976-05-06
AU7295574A (en) 1976-03-11
FR2246722A1 (en) 1975-05-02
DE2350401A1 (en) 1975-04-17
ZA746370B (en) 1976-01-28
FR2246722B1 (en) 1977-03-25
US3890793A (en) 1975-06-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee