GB1517763A - Underground mine roof support - Google Patents

Underground mine roof support

Info

Publication number
GB1517763A
GB1517763A GB2738975A GB2738975A GB1517763A GB 1517763 A GB1517763 A GB 1517763A GB 2738975 A GB2738975 A GB 2738975A GB 2738975 A GB2738975 A GB 2738975A GB 1517763 A GB1517763 A GB 1517763A
Authority
GB
United Kingdom
Prior art keywords
roof girder
link piece
base
roof
linkage
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
GB2738975A
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
Priority claimed from DE19742431740 external-priority patent/DE2431740B2/en
Priority claimed from DE2443460A external-priority patent/DE2443460A1/en
Priority claimed from DE19742447429 external-priority patent/DE2447429A1/en
Application filed by Individual filed Critical Individual
Publication of GB1517763A publication Critical patent/GB1517763A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0039Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06Special mine caps or special tops of pit-props for permitting step-by-step movement

Abstract

1517763 Mine roof support chocks J WINKLER 27 June 1975 [2 July 1974 11 Sept 1974 4 Oct 1974] 27389/75 Heading E1P A mine roof support chock comprises a base 11, a roof girder 13, a linkage by which the roof girder is linked to the base, a goaf shield 12, and a ram 16 for raising the roof girder, and is characterised in that the goaf shield forms part of the linkage which includes a link piece 14, by which the roof girder 13 is engaged or to which it is connected for limited angular motion in a vertical plane, either the roof girder being capable of limited motion relative to the link piece which is fixed in inclination relative to the base, or the roof girder being fixed to the link piece which is capable of limited angular motion relative to the base. The linkage may include pivot points which allow lost motion and are biassed by springs, Fig. 3, and the length of a link rod may be variable. The roof girder may be connected to the link piece by a movable component slidable in or on the link piece which may be tubular, Fig. 10.
GB2738975A 1974-07-02 1975-06-27 Underground mine roof support Expired GB1517763A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19742431740 DE2431740B2 (en) 1974-07-02 1974-07-02 Shield support for underground mining
DE2443460A DE2443460A1 (en) 1974-09-11 1974-09-11 Mine shield support system - has roofbar held parallel to floor bar at all heights by kinetic linkage
DE19742447429 DE2447429A1 (en) 1974-07-02 1974-10-04 Mine shield support with roofbar - roofbar forepoled off telescopic powered beam with joint on waste shield

Publications (1)

Publication Number Publication Date
GB1517763A true GB1517763A (en) 1978-07-12

Family

ID=27185994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2738975A Expired GB1517763A (en) 1974-07-02 1975-06-27 Underground mine roof support

Country Status (2)

Country Link
FR (1) FR2277231A1 (en)
GB (1) GB1517763A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136040A (en) * 1983-03-08 1984-09-12 Dobson Park Ind Pivotal linkage of a mine roof support
GB2150192A (en) * 1983-11-16 1985-06-26 Dobson Park Ind Mine roof support
CN103485812A (en) * 2013-09-09 2014-01-01 三一重型装备有限公司 Pre-supporting mechanism and tunneling machine
CN110359941A (en) * 2019-07-12 2019-10-22 天地科技股份有限公司 A kind of top beam and the hydraulic support comprising the top beam

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601341A1 (en) * 1976-01-15 1977-07-28 Kloeckner Werke Ag EXTENSION UNIT FOR UNDERGROUND STRUTS
GB2048355A (en) * 1979-05-08 1980-12-10 Gewerk Eisenhuette Westfalia Mine roof supports
DE3023282A1 (en) * 1980-06-21 1982-01-21 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen SHIELD BOCK, ESPECIALLY FOR USE IN THE DISASSEMBLY OF MIGHTY WAREHOUSES IN DISC BUILDING
HU185380B (en) * 1980-06-30 1985-01-28 Varpalotai Szenbanyak Supporting device for mining particularly for wall method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136040A (en) * 1983-03-08 1984-09-12 Dobson Park Ind Pivotal linkage of a mine roof support
GB2150192A (en) * 1983-11-16 1985-06-26 Dobson Park Ind Mine roof support
CN103485812A (en) * 2013-09-09 2014-01-01 三一重型装备有限公司 Pre-supporting mechanism and tunneling machine
CN110359941A (en) * 2019-07-12 2019-10-22 天地科技股份有限公司 A kind of top beam and the hydraulic support comprising the top beam

Also Published As

Publication number Publication date
FR2277231B3 (en) 1979-02-23
FR2277231A1 (en) 1976-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee