GB1428256A - Roof support with a shield for a longwall working in a mine - Google Patents

Roof support with a shield for a longwall working in a mine

Info

Publication number
GB1428256A
GB1428256A GB2245673A GB2245673A GB1428256A GB 1428256 A GB1428256 A GB 1428256A GB 2245673 A GB2245673 A GB 2245673A GB 2245673 A GB2245673 A GB 2245673A GB 1428256 A GB1428256 A GB 1428256A
Authority
GB
United Kingdom
Prior art keywords
shield
lever
floor
roof support
pin
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
GB2245673A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 DE19722224207 external-priority patent/DE2224207C2/en
Application filed by Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of GB1428256A publication Critical patent/GB1428256A/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
    • 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

Abstract

1428256 Advancing mine roof supports BOCHUMER EISENHUTTE HEINTZMANN & CO 10 May 1973 [18 May 1972] 22456/73 Heading E1P In an advancing mine roof support comprising one or more floor-engaging beams 8, a cantilever roof beam 10 pivotally attached to an arcuate shield 9 and one or more telescopic props 11 pivotally interconnecting the shield and the floor beam or beams 8, the shield is secured to the beam(s) 8 by a pivotable lever 15 which is adapted to be adjustably moved towards the working face along an arcuate path and which is lockable in different positions relative to the shield and the beam(s) 8 as by a pin-and-slot connection 19..24, see also Fig. 2 (not shown). In a modification, see Fig. 3 (not shown), the lever 19 is slotted and the pin 24 retained therein by a wedge whilst in a further modification, Fig. 4 (not shown), the lever 15 terminates in a cam surface bearing on the floor beam(s) 8 and the pivot 16 thereof is received in an elongated slot in its associated lug.
GB2245673A 1972-05-18 1973-05-10 Roof support with a shield for a longwall working in a mine Expired GB1428256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722224207 DE2224207C2 (en) 1972-05-18 Extension element for the shield extension of struts in underground mining operations

Publications (1)

Publication Number Publication Date
GB1428256A true GB1428256A (en) 1976-03-17

Family

ID=5845198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2245673A Expired GB1428256A (en) 1972-05-18 1973-05-10 Roof support with a shield for a longwall working in a mine

Country Status (5)

Country Link
US (1) US3854293A (en)
AU (1) AU474950B2 (en)
BE (1) BE799668A (en)
FR (1) FR2184733B3 (en)
GB (1) GB1428256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150192A (en) * 1983-11-16 1985-06-26 Dobson Park Ind Mine roof support

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2253143B1 (en) * 1973-11-30 1978-11-03 Alsace Mines Potasse
DE2413538C2 (en) * 1974-03-21 1978-05-24 Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum Shield support frame
DE2843857C2 (en) * 1978-10-07 1986-06-19 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Shield support frame
CN114607432A (en) * 2022-03-28 2022-06-10 中国矿业大学(北京) Support area adjustable support device for rib forming treatment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781888A (en) * 1947-07-02 1957-02-19 Gewerk Eisenhuette Westfalia Flexible conveyor having successively shiftable sections for long face mining
US2566003A (en) * 1947-07-07 1951-08-28 Mavor & Coulson Ltd Anchoring device for coal and other mines
FR1503990A (en) * 1966-10-11 1967-12-01 Bennes Marrel Improvements to support piles, especially for mines or underground work sites
FR1600845A (en) * 1968-07-08 1970-08-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150192A (en) * 1983-11-16 1985-06-26 Dobson Park Ind Mine roof support

Also Published As

Publication number Publication date
FR2184733B3 (en) 1976-04-23
AU5576473A (en) 1974-11-21
AU474950B2 (en) 1976-08-05
BE799668A (en) 1973-11-19
DE2224207B1 (en) 1973-01-04
FR2184733A1 (en) 1973-12-28
DE2224207A1 (en) 1973-01-04
US3854293A (en) 1974-12-17

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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