GB1063456A - Roof support assembly suitable for use in mines - Google Patents

Roof support assembly suitable for use in mines

Info

Publication number
GB1063456A
GB1063456A GB20383/64A GB2038364A GB1063456A GB 1063456 A GB1063456 A GB 1063456A GB 20383/64 A GB20383/64 A GB 20383/64A GB 2038364 A GB2038364 A GB 2038364A GB 1063456 A GB1063456 A GB 1063456A
Authority
GB
United Kingdom
Prior art keywords
support
signal
roof
roof support
line
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
GB20383/64A
Inventor
Frank Pawling
Douglas Herbert Hewlett Bolton
Michael Charles Potts
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 GB20383/64A priority Critical patent/GB1063456A/en
Priority to US455540A priority patent/US3264945A/en
Priority to FR17202A priority patent/FR1433245A/en
Publication of GB1063456A publication Critical patent/GB1063456A/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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control

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)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,063,456. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. May 11, 1965 [May 15, 1964], No.20383/64. Heading F1P. The subject matter of this specification is identical with that described in Specification 1,063,455, but the claims are concerned with a roof support assembly comprising a series of roof supports in which each support is caused to advance by the receipt of a signal from the preceding roof support, the signal resulting in pressurization of a line which causes the support connected thereto to advance, characterised in that the assembly is provided with (a) remotely operable means whereby the supply to the line of a support which has received but not passed on the signal may be cut-off or (b) valve means operable to release the pressure from the line when the signal is sent to the next roof support.
GB20383/64A 1964-05-15 1964-05-15 Roof support assembly suitable for use in mines Expired GB1063456A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB20383/64A GB1063456A (en) 1964-05-15 1964-05-15 Roof support assembly suitable for use in mines
US455540A US3264945A (en) 1964-05-15 1965-05-13 Roof support assembly suitable for use in mines
FR17202A FR1433245A (en) 1964-05-15 1965-05-15 Mine Roof Support Kit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20383/64A GB1063456A (en) 1964-05-15 1964-05-15 Roof support assembly suitable for use in mines

Publications (1)

Publication Number Publication Date
GB1063456A true GB1063456A (en) 1967-03-30

Family

ID=10145054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20383/64A Expired GB1063456A (en) 1964-05-15 1964-05-15 Roof support assembly suitable for use in mines

Country Status (2)

Country Link
US (1) US3264945A (en)
GB (1) GB1063456A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126902A (en) * 1964-10-22 1968-09-11 Fairey Eng Improvements relating to hydraulic control systems

Also Published As

Publication number Publication date
US3264945A (en) 1966-08-09

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