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GB999943A - Improved mine roof support means - Google Patents

Improved mine roof support means

Info

Publication number
GB999943A
GB999943A GB4088860A GB4088860A GB999943A GB 999943 A GB999943 A GB 999943A GB 4088860 A GB4088860 A GB 4088860A GB 4088860 A GB4088860 A GB 4088860A GB 999943 A GB999943 A GB 999943A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof support
support means
nov
spring
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
GB4088860A
Inventor
Frank Cowlishaw
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Priority to GB4088860A priority Critical patent/GB999943A/en
Publication of GB999943A publication Critical patent/GB999943A/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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0418—Positioning devices and stabilizing means for the props

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

999,943. Advancing mine roof supports. W. E. & F. DOBSON Ltd. Nov. 21, 1961 [Nov. 29, 1960], No. 40888/60. Heading E1E. An advancing mine roof support system for inclined seams comprises a series of master and slave units 5a, 5, the bases and roof bars of which are respectively inter-connected by pivotally mounted, spring-loaded plungers 11, 12 and 11a, 12a. The system is also provided with anchoring props 14 having a frame structure 14a and bearing plates 13 for the base and roof bars of the extreme slave unit. The spring-loaded plungers may be replaced by hydraulic or pneumatic devices. Specifications 885,293, 890,644 and 930,201 are referred to.
GB4088860A 1960-11-29 1960-11-29 Improved mine roof support means Expired GB999943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4088860A GB999943A (en) 1960-11-29 1960-11-29 Improved mine roof support means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4088860A GB999943A (en) 1960-11-29 1960-11-29 Improved mine roof support means

Publications (1)

Publication Number Publication Date
GB999943A true GB999943A (en) 1965-07-28

Family

ID=10417120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4088860A Expired GB999943A (en) 1960-11-29 1960-11-29 Improved mine roof support means

Country Status (1)

Country Link
GB (1) GB999943A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447328A (en) * 1966-04-30 1969-06-03 Bergwerksverband Gmbh Mine roof supports
US3505823A (en) * 1967-07-19 1970-04-14 Gunter Bell Hydraulic support systems for mine workings
US3536433A (en) * 1968-03-12 1970-10-27 Ingbuero Konrad Grebe Traveling prop system for a mine working face having a steep,or semi-steep,or flat orientation
US4147459A (en) * 1977-02-08 1979-04-03 Thyssen Industrie Ag Shifting device connected with a longwall conveyor for a progressive timbering frame
EP0003342A1 (en) * 1978-01-23 1979-08-08 Saarbergwerke Aktiengesellschaft Device to prevent pit linings from sliding away or tilting
CN104675422A (en) * 2014-12-26 2015-06-03 安徽理工大学 Mine roadway excavation working face temporary support hydraulic device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447328A (en) * 1966-04-30 1969-06-03 Bergwerksverband Gmbh Mine roof supports
US3505823A (en) * 1967-07-19 1970-04-14 Gunter Bell Hydraulic support systems for mine workings
US3536433A (en) * 1968-03-12 1970-10-27 Ingbuero Konrad Grebe Traveling prop system for a mine working face having a steep,or semi-steep,or flat orientation
US4147459A (en) * 1977-02-08 1979-04-03 Thyssen Industrie Ag Shifting device connected with a longwall conveyor for a progressive timbering frame
EP0003342A1 (en) * 1978-01-23 1979-08-08 Saarbergwerke Aktiengesellschaft Device to prevent pit linings from sliding away or tilting
CN104675422A (en) * 2014-12-26 2015-06-03 安徽理工大学 Mine roadway excavation working face temporary support hydraulic device

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