GB1423155A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1423155A
GB1423155A GB5677672A GB5677672A GB1423155A GB 1423155 A GB1423155 A GB 1423155A GB 5677672 A GB5677672 A GB 5677672A GB 5677672 A GB5677672 A GB 5677672A GB 1423155 A GB1423155 A GB 1423155A
Authority
GB
United Kingdom
Prior art keywords
mine roof
flap
roof
roof supports
laterally projecting
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
GB5677672A
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson Ltd
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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Priority to GB5677672A priority Critical patent/GB1423155A/en
Priority to DE19732358156 priority patent/DE2358156B2/en
Publication of GB1423155A publication Critical patent/GB1423155A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices

Abstract

1423155 Mine roof supports GULLICK DOBSON Ltd 16 Nov 1973 [8 Dec 1972] 56776/72 Heading E1P In a mine roof support 10, 11, 12 which may be of the advancing type, at least one side of the roof-engaging structure is provided with a laterally projecting flexible flap such as 17, 18, 19. The flap may consist of a sheet of canvas-reinforced-rubber and may be of tubular or hollow construction, the flap being secured to a laterally projecting flange or lugs on the roof-engaging structure as by bolts 20.
GB5677672A 1972-12-08 1972-12-08 Mine roof supports Expired GB1423155A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5677672A GB1423155A (en) 1972-12-08 1972-12-08 Mine roof supports
DE19732358156 DE2358156B2 (en) 1972-12-08 1973-11-22 COVER DEVICE FOR SECURING THE HANGING AREA LOCATED BETWEEN THE CAPS OF NEIGHBORING DISPLACEMENT POSITIONS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5677672A GB1423155A (en) 1972-12-08 1972-12-08 Mine roof supports

Publications (1)

Publication Number Publication Date
GB1423155A true GB1423155A (en) 1976-01-28

Family

ID=10477515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5677672A Expired GB1423155A (en) 1972-12-08 1972-12-08 Mine roof supports

Country Status (2)

Country Link
DE (1) DE2358156B2 (en)
GB (1) GB1423155A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113944490A (en) * 2021-10-19 2022-01-18 湖南工程学院 Collapse-preventing tunnel construction disaster prevention and reduction structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521819A1 (en) * 1985-06-19 1987-01-02 Kloeckner Becorit Gmbh Hydraulic face support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113944490A (en) * 2021-10-19 2022-01-18 湖南工程学院 Collapse-preventing tunnel construction disaster prevention and reduction structure
CN113944490B (en) * 2021-10-19 2022-04-01 湖南工程学院 Collapse-preventing tunnel construction disaster prevention and reduction structure

Also Published As

Publication number Publication date
DE2358156B2 (en) 1976-01-15
DE2358156A1 (en) 1974-06-12

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Legal Events

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