GB991008A - Mining apparatus - Google Patents

Mining apparatus

Info

Publication number
GB991008A
GB991008A GB2086562A GB2086562A GB991008A GB 991008 A GB991008 A GB 991008A GB 2086562 A GB2086562 A GB 2086562A GB 2086562 A GB2086562 A GB 2086562A GB 991008 A GB991008 A GB 991008A
Authority
GB
United Kingdom
Prior art keywords
conveyer
valve means
roof
support
advanceable
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
GB2086562A
Inventor
Michael Charles Potts
Douglas Herbert Hewlett Bolton
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 GB2086562A priority Critical patent/GB991008A/en
Priority to US282760A priority patent/US3228199A/en
Publication of GB991008A publication Critical patent/GB991008A/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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

991,008. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. May 21, 1963 [May 30, 1962], No. 20865/62. Heading F1P. The subject matter of this Specification is identical to Specification 991,011 but the claims relate to mining apparatus comprising guide means, e.g. a conveyer for a cutting machine, the conveyer extending along the working face of a mine, and a series of fluid pressure operated roof supports advanceable in a predetermined order and each having valve means operable to cause its roof support to advance, the conveyer also being advanceable and being arranged when advanced by a predetermined amount, to cause operation of the valve means of the first roof support whereby the first support completes an advancing operation and causes operation of the valve means of the next roof support which thereby advances and so on throughout the series.
GB2086562A 1962-05-30 1962-05-30 Mining apparatus Expired GB991008A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2086562A GB991008A (en) 1962-05-30 1962-05-30 Mining apparatus
US282760A US3228199A (en) 1962-05-30 1963-05-23 Mining apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2086562A GB991008A (en) 1962-05-30 1962-05-30 Mining apparatus

Publications (1)

Publication Number Publication Date
GB991008A true GB991008A (en) 1965-05-05

Family

ID=10153039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2086562A Expired GB991008A (en) 1962-05-30 1962-05-30 Mining apparatus

Country Status (1)

Country Link
GB (1) GB991008A (en)

Similar Documents

Publication Publication Date Title
GB1091844A (en) Equipment for the high pressure hydraulic mining of coal from longwall faces
GB991012A (en) Roof support assembly
GB991008A (en) Mining apparatus
GB991010A (en) Roof support assembly
GB1160328A (en) A System for Supplying Fluid to Advanceable Mining Apparatus
GB1333425A (en) Mine roof supporting systems
GB989592A (en) Pressure-medium-actuated shifting device for a conveyor on which a coal plough is guided
ES326239A1 (en) A device for carbon extraction in underground explorations. (Machine-translation by Google Translate, not legally binding)
GB1144572A (en) Mining apparatus
GB1063456A (en) Roof support assembly suitable for use in mines
GB931097A (en) Improvements relating to mine supporting equipment
GB956878A (en) Roof support assembly suitable for use in mines
ES376211A1 (en) Tunneling shield
GB1145743A (en) Mining machine installations
GB849162A (en) Improvements in and relating to ripping machines
GB947078A (en) Self-advancing roof support
GB948208A (en) Anchoring apparatus for a coal-winning installation
GB1247152A (en) Mining system and apparatus
GB1077866A (en) Mineral-mining apparatus for operation in steep seams
GB1033847A (en) Control circuit for coal cutting machine and conveyor
GB1004275A (en) Mining apparatus
GB1160379A (en) Device for Automatically Advancing the Drive Stations of Installations for Mining Minerals.
GB977715A (en) Hydraulic programme control system for anchoring apparatus situated at the ends of conveyors in mines and for self-advancing mine roof supports
GB1112647A (en) Roof support assembly suitable for use in mines
GB1019107A (en) Improvements in or relating to coal-mining machines