FR1060167A - Articulated extension for mine galleries - Google Patents

Articulated extension for mine galleries

Info

Publication number
FR1060167A
FR1060167A FR1060167DA FR1060167A FR 1060167 A FR1060167 A FR 1060167A FR 1060167D A FR1060167D A FR 1060167DA FR 1060167 A FR1060167 A FR 1060167A
Authority
FR
France
Prior art keywords
articulated extension
mine galleries
galleries
mine
articulated
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
Other languages
French (fr)
Inventor
Paul Winter
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 filed Critical
Application granted granted Critical
Publication of FR1060167A publication Critical patent/FR1060167A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
FR1060167D 1952-07-04 1952-07-04 Articulated extension for mine galleries Expired FR1060167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1060167T 1952-07-04

Publications (1)

Publication Number Publication Date
FR1060167A true FR1060167A (en) 1954-03-31

Family

ID=9599450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1060167D Expired FR1060167A (en) 1952-07-04 1952-07-04 Articulated extension for mine galleries

Country Status (1)

Country Link
FR (1) FR1060167A (en)

Similar Documents

Publication Publication Date Title
FR1070316A (en) Roof support for mines
FR1043173A (en) Mine props
FR60222E (en) Hinged metal extension for lead
FR1082903A (en) Mine roof supports
FR1060167A (en) Articulated extension for mine galleries
CH314369A (en) mine
FR1130143A (en) Articulated extension for mine supports
FR1102978A (en) Improvements to hydraulic props for mines
FR1094586A (en) hydraulic mine prop
FR1081646A (en) Improvements to support systems for mine galleries
FR1080985A (en) mine prop
FR1083046A (en) Coal mining machine
FR1083350A (en) Flexible support for mines
FR1050165A (en) Rigid articulation for metal support of mine galleries
FR1063959A (en) Flexible support for mine gallery
FR63275E (en) Annular or curved beam for mine galleries
FR1060827A (en) hydraulic mine prop
FR1218277A (en) Junction of caps for mine support
FR1082308A (en) Movable support for mines
FR1083882A (en) Extension for mine prop
FR1031738A (en) Support material for mining
FR1001408A (en) Deformable support for mine galleries
FR1034189A (en) hydraulic prop for mines
FR1065102A (en) Flexible retaining structure for mine galleries
FR1109074A (en) hydraulic mine prop