GB1311857A - Mine roof support systems - Google Patents

Mine roof support systems

Info

Publication number
GB1311857A
GB1311857A GB1311857DA GB1311857A GB 1311857 A GB1311857 A GB 1311857A GB 1311857D A GB1311857D A GB 1311857DA GB 1311857 A GB1311857 A GB 1311857A
Authority
GB
United Kingdom
Prior art keywords
roof support
mine roof
support systems
conveyor
frames
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
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
Publication of GB1311857A publication Critical patent/GB1311857A/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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Framework For Endless Conveyors (AREA)

Abstract

1311857 Advancing mine roof support assemblies GULLICK DOBSON Ltd 18 Sept 1970 [13 Aug 1969] 40391/69 Heading E1P An advancing mine roof support assembly comprises two frames 10, 11 disposed on either side of a conveyor C in the vicinity of a curved extension Cl thereof and telescopic beams 22 pivotally mounted on auxiliary props 20, 21 disposed adjacent the frames 10, 11 respectively. The beams 22 span the conveyor and have arcuate devices 24 for locating roof bars thereon.
GB1311857D 1969-08-13 1969-08-13 Mine roof support systems Expired GB1311857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4039169 1969-08-13

Publications (1)

Publication Number Publication Date
GB1311857A true GB1311857A (en) 1973-03-28

Family

ID=10414668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1311857D Expired GB1311857A (en) 1969-08-13 1969-08-13 Mine roof support systems

Country Status (1)

Country Link
GB (1) GB1311857A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110894789A (en) * 2019-12-12 2020-03-20 抚顺综掘装备制造有限公司 Shed-erecting type onboard temporary supporting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110894789A (en) * 2019-12-12 2020-03-20 抚顺综掘装备制造有限公司 Shed-erecting type onboard temporary supporting device

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Legal Events

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