GB1152843A - Roof Support Assembly suitable for use in Mines - Google Patents

Roof Support Assembly suitable for use in Mines

Info

Publication number
GB1152843A
GB1152843A GB3904766A GB3904766A GB1152843A GB 1152843 A GB1152843 A GB 1152843A GB 3904766 A GB3904766 A GB 3904766A GB 3904766 A GB3904766 A GB 3904766A GB 1152843 A GB1152843 A GB 1152843A
Authority
GB
United Kingdom
Prior art keywords
roof support
mines
support assembly
assembly suitable
division
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
GB3904766A
Inventor
Friedrich Lampl
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB3904766A priority Critical patent/GB1152843A/en
Publication of GB1152843A publication Critical patent/GB1152843A/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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1,152,843. Hydraulic jacks. DOWTY MINING EQUIPMENT Ltd. 1 Sept., 1966 [1 June, 1965], No. 39047/66. Heading B8J. [Also in Division E1] A mine roof support includes an hydraulic advancing jack secured to floor-engaging beams by two pairs of chains, as described in Specification 1,152,842 (Division E1) A lug integral with the cylinder of the jack is adapted for fitting to an anchorage.
GB3904766A 1965-06-01 1965-06-01 Roof Support Assembly suitable for use in Mines Expired GB1152843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3904766A GB1152843A (en) 1965-06-01 1965-06-01 Roof Support Assembly suitable for use in Mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3904766A GB1152843A (en) 1965-06-01 1965-06-01 Roof Support Assembly suitable for use in Mines

Publications (1)

Publication Number Publication Date
GB1152843A true GB1152843A (en) 1969-05-21

Family

ID=10407299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3904766A Expired GB1152843A (en) 1965-06-01 1965-06-01 Roof Support Assembly suitable for use in Mines

Country Status (1)

Country Link
GB (1) GB1152843A (en)

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Legal Events

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