GB8330556D0 - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB8330556D0
GB8330556D0 GB838330556A GB8330556A GB8330556D0 GB 8330556 D0 GB8330556 D0 GB 8330556D0 GB 838330556 A GB838330556 A GB 838330556A GB 8330556 A GB8330556 A GB 8330556A GB 8330556 D0 GB8330556 D0 GB 8330556D0
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
supports
mine
roof
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.)
Granted
Application number
GB838330556A
Other versions
GB2150192A (en
GB2150192B (en
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.)
Joy Global Industries Ltd
Original Assignee
Dobson Park Industries 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 Dobson Park Industries Ltd filed Critical Dobson Park Industries Ltd
Priority to GB08330556A priority Critical patent/GB2150192B/en
Publication of GB8330556D0 publication Critical patent/GB8330556D0/en
Publication of GB2150192A publication Critical patent/GB2150192A/en
Application granted granted Critical
Publication of GB2150192B publication Critical patent/GB2150192B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D23/04—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
    • E21D23/0427—Shield operating devices; Hinges therefor
GB08330556A 1983-11-16 1983-11-16 Mineroof support Expired GB2150192B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08330556A GB2150192B (en) 1983-11-16 1983-11-16 Mineroof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08330556A GB2150192B (en) 1983-11-16 1983-11-16 Mineroof support

Publications (3)

Publication Number Publication Date
GB8330556D0 true GB8330556D0 (en) 1983-12-21
GB2150192A GB2150192A (en) 1985-06-26
GB2150192B GB2150192B (en) 1987-04-15

Family

ID=10551838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08330556A Expired GB2150192B (en) 1983-11-16 1983-11-16 Mineroof support

Country Status (1)

Country Link
GB (1) GB2150192B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182925A (en) * 1966-12-16 1970-03-04 Gullick Dobson Ltd Improvements in or relating to Mine Roof Supports.
GB1428256A (en) * 1972-05-18 1976-03-17 Bochumer Eisen Heintzmann Roof support with a shield for a longwall working in a mine
DE2413538C2 (en) * 1974-03-21 1978-05-24 Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum Shield support frame
US3971225A (en) * 1974-04-08 1976-07-27 Becorit Grubenausbau Gmbh Mine support assemblies
GB1517763A (en) * 1974-07-02 1978-07-12 Winkler J Underground mine roof support
DE2459792A1 (en) * 1974-12-18 1976-07-01 Gewerk Eisenhuette Westfalia SHIELD STRUCTURE
GB1600520A (en) * 1977-06-30 1981-10-14 Hemscheidt Maschf Hermann Hydraulic self-advancing roofsupport frame

Also Published As

Publication number Publication date
GB2150192A (en) 1985-06-26
GB2150192B (en) 1987-04-15

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Legal Events

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