GB778389A - Improvements in and relating to means for supporting galleries and workings in mines - Google Patents

Improvements in and relating to means for supporting galleries and workings in mines

Info

Publication number
GB778389A
GB778389A GB12012/54A GB1201254A GB778389A GB 778389 A GB778389 A GB 778389A GB 12012/54 A GB12012/54 A GB 12012/54A GB 1201254 A GB1201254 A GB 1201254A GB 778389 A GB778389 A GB 778389A
Authority
GB
United Kingdom
Prior art keywords
workings
mines
relating
wedge
pin
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
GB12012/54A
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.)
BELGE DE MECANISATION SOC
Original Assignee
BELGE DE MECANISATION SOC
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 BELGE DE MECANISATION SOC filed Critical BELGE DE MECANISATION SOC
Publication of GB778389A publication Critical patent/GB778389A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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)
  • Electron Sources, Ion Sources (AREA)

Abstract

778,389. Mine roof supports. SOC. BELGE DE MECANISATION. April 26, 1954 ,[Jan. 22, 1954], No. 12012/54. Class 20(2) A support for mine roofs comprises a frame 3 having two planes 2a, 2b inclined towards one another on which are two wedges 4a, 4b held apart by a rod 5 bearing against the wedge 4a and having a frusto-conical end 5b secured in the wedge 4b by a pin 7 which is driven out to release the support. The pin 7 has a covered part which drives a saddle piece 9 against a flat 5c on the rod 5.
GB12012/54A 1954-01-22 1954-04-26 Improvements in and relating to means for supporting galleries and workings in mines Expired GB778389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE778389X 1954-01-22

Publications (1)

Publication Number Publication Date
GB778389A true GB778389A (en) 1957-07-03

Family

ID=3880349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12012/54A Expired GB778389A (en) 1954-01-22 1954-04-26 Improvements in and relating to means for supporting galleries and workings in mines

Country Status (1)

Country Link
GB (1) GB778389A (en)

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