GB853041A - Improvements in or relating to support elements for mine supporting systems - Google Patents

Improvements in or relating to support elements for mine supporting systems

Info

Publication number
GB853041A
GB853041A GB3842/58A GB384258A GB853041A GB 853041 A GB853041 A GB 853041A GB 3842/58 A GB3842/58 A GB 3842/58A GB 384258 A GB384258 A GB 384258A GB 853041 A GB853041 A GB 853041A
Authority
GB
United Kingdom
Prior art keywords
prop
fulcrum
lever
relating
support elements
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
GB3842/58A
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.)
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
Original Assignee
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
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 EBERHARD VON CAMPENHAUSEN, WILLY EGGEMANN filed Critical EBERHARD VON CAMPENHAUSEN
Publication of GB853041A publication Critical patent/GB853041A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/60—Devices for withdrawing props or chocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Tents Or Canopies (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

853,041. Mine roof supports. EGGEMANN, W., and CAMPENHAUSEN E. VON, [trading as SCHWARZ KOMM.-GES., H.]. Feb. 6, 1958 [Feb. 11, 1957], No. 3842/58. Class 20(2) A telescopic pit prop 11 can be moved laterally by a lever 19 which pivots about a fulcrum 28 supported by shoes 29 on rails 26. The lever 19 comprises two cranked arms pivoted at 18 to either side of the prop base or (Fig. 5, not shown) detachably inserted in eyeholes in the prop base. A haulage device attached to an eyebolt 25 connecting the arms causes the lever 19 to pivot about its fulcrum 28 lifting the edge of the prop foot and pulling the prop along the rails 26. The fulcrum may alternatively be a roller resting directly on the ground (Fig. 6, not shown, refers).
GB3842/58A 1957-02-11 1958-02-06 Improvements in or relating to support elements for mine supporting systems Expired GB853041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE853041X 1957-02-11

Publications (1)

Publication Number Publication Date
GB853041A true GB853041A (en) 1960-11-02

Family

ID=6786651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3842/58A Expired GB853041A (en) 1957-02-11 1958-02-06 Improvements in or relating to support elements for mine supporting systems

Country Status (1)

Country Link
GB (1) GB853041A (en)

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