GB1148591A - Improvements in and relating to self-advancing roof supports - Google Patents

Improvements in and relating to self-advancing roof supports

Info

Publication number
GB1148591A
GB1148591A GB1487665A GB1487665A GB1148591A GB 1148591 A GB1148591 A GB 1148591A GB 1487665 A GB1487665 A GB 1487665A GB 1487665 A GB1487665 A GB 1487665A GB 1148591 A GB1148591 A GB 1148591A
Authority
GB
United Kingdom
Prior art keywords
roof support
relating
self
rams
april
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
GB1487665A
Inventor
Peter Shuttleworth
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.)
Mastabar Mining Equipment Co Ltd
Original Assignee
Mastabar Mining Equipment Co 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 Mastabar Mining Equipment Co Ltd filed Critical Mastabar Mining Equipment Co Ltd
Priority to GB1487665A priority Critical patent/GB1148591A/en
Publication of GB1148591A publication Critical patent/GB1148591A/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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • 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)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

1,148,591. Advancing mine roof support MASTABAR MINING EQUIPMENT CO. Ltd. 6 April, 1966 [8 April, 1965], No. 14876/ 65. Heading E1E. In an advancing mine roof support comprising a forward prop 20 and the rearward props 26 mounted on interconnected base members 10, 12 and jointly supporting an articulated roof support, advancement is effected by a pair of rams 36 guided by collars 42 retained by ball journals 44 on the base member 10. In a modification, see Figs. 3 and 4 (not shown), the rams are mounted in the rear base member and provided with relay bar and a haulage chain respectively for connection to the conveyor.
GB1487665A 1965-04-08 1965-04-08 Improvements in and relating to self-advancing roof supports Expired GB1148591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1487665A GB1148591A (en) 1965-04-08 1965-04-08 Improvements in and relating to self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1487665A GB1148591A (en) 1965-04-08 1965-04-08 Improvements in and relating to self-advancing roof supports

Publications (1)

Publication Number Publication Date
GB1148591A true GB1148591A (en) 1969-04-16

Family

ID=10049073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1487665A Expired GB1148591A (en) 1965-04-08 1965-04-08 Improvements in and relating to self-advancing roof supports

Country Status (1)

Country Link
GB (1) GB1148591A (en)

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