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CA1165572A - Supports pour toits de galeries de mine - Google Patents

Supports pour toits de galeries de mine

Info

Publication number
CA1165572A
CA1165572A CA000407538A CA407538A CA1165572A CA 1165572 A CA1165572 A CA 1165572A CA 000407538 A CA000407538 A CA 000407538A CA 407538 A CA407538 A CA 407538A CA 1165572 A CA1165572 A CA 1165572A
Authority
CA
Canada
Prior art keywords
axis
cantilever
ram
mine
roof
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
CA000407538A
Other languages
English (en)
Inventor
Richard A. Naylor
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 HUCKNALL Ltd
Original Assignee
DOWTY HUCKNALL 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 HUCKNALL Ltd filed Critical DOWTY HUCKNALL Ltd
Application granted granted Critical
Publication of CA1165572A publication Critical patent/CA1165572A/fr
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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0013—Frame type 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
    • E21D23/04—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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions therefor

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)
  • Body Structure For Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
CA000407538A 1981-08-07 1982-07-19 Supports pour toits de galeries de mine Expired CA1165572A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8124219 1981-08-07
GB08124219A GB2103693B (en) 1981-08-07 1981-08-07 Mine-roof supports

Publications (1)

Publication Number Publication Date
CA1165572A true CA1165572A (fr) 1984-04-17

Family

ID=10523784

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000407538A Expired CA1165572A (fr) 1981-08-07 1982-07-19 Supports pour toits de galeries de mine

Country Status (2)

Country Link
CA (1) CA1165572A (fr)
GB (1) GB2103693B (fr)

Also Published As

Publication number Publication date
GB2103693B (en) 1984-09-05
GB2103693A (en) 1983-02-23

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Legal Events

Date Code Title Description
MKEX Expiry