GB1258866A - - Google Patents

Info

Publication number
GB1258866A
GB1258866A GB1258866DA GB1258866A GB 1258866 A GB1258866 A GB 1258866A GB 1258866D A GB1258866D A GB 1258866DA GB 1258866 A GB1258866 A GB 1258866A
Authority
GB
United Kingdom
Prior art keywords
support
flush
goaf
mine roof
supports
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
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 filed Critical
Publication of GB1258866A publication Critical patent/GB1258866A/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
    • E21D23/04—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
    • E21D23/0454—Trailing plates; Coal face or goaf side sprags

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Tents Or Canopies (AREA)

Abstract

1,258,866. Advancing mine roof supports. GULLICK DOBSON Ltd. 14 May, 1970 [19 Sept., 1969], No. 23316/70. Heading E1P. In an advancing mine roof support having a wrap-round goaf side shield 6 co-operating with a relatively sliding barrier 9, collapse of the goaf into the space between adjacent supports is prevented by a flush guard 11 which is pivoted into contact with the side wall 5 of the adjacent support by a ram 16. The support is also provided with a rear mat or carrier platform 10 and may have two flush guards arranged at different heights to one another, see Figs. 3 and 4 (not shown).
GB1258866D 1969-09-19 1970-05-14 Expired GB1258866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691947376 DE1947376A1 (en) 1969-09-19 1969-09-19 Wandering longwall construction for underground mining operations

Publications (1)

Publication Number Publication Date
GB1258866A true GB1258866A (en) 1971-12-30

Family

ID=5745895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258866D Expired GB1258866A (en) 1969-09-19 1970-05-14

Country Status (2)

Country Link
DE (1) DE1947376A1 (en)
GB (1) GB1258866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233359A (en) * 2022-01-24 2022-03-25 中煤能源研究院有限责任公司 Caving type gangue filling hydraulic support and filling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233359A (en) * 2022-01-24 2022-03-25 中煤能源研究院有限责任公司 Caving type gangue filling hydraulic support and filling method
CN114233359B (en) * 2022-01-24 2024-03-01 中煤能源研究院有限责任公司 Roof-caving type gangue filling hydraulic support and filling method

Also Published As

Publication number Publication date
DE1947376A1 (en) 1971-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees