[go: up one dir, main page]

FR1207659A - Support bar, in particular for the roof of timbering of mining galleries - Google Patents

Support bar, in particular for the roof of timbering of mining galleries

Info

Publication number
FR1207659A
FR1207659A FR1207659DA FR1207659A FR 1207659 A FR1207659 A FR 1207659A FR 1207659D A FR1207659D A FR 1207659DA FR 1207659 A FR1207659 A FR 1207659A
Authority
FR
France
Prior art keywords
timbering
roof
support bar
mining galleries
galleries
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
James Frame
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 FR1207659A publication Critical patent/FR1207659A/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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
FR1207659D 1957-07-04 1958-07-03 Support bar, in particular for the roof of timbering of mining galleries Expired FR1207659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2112157A GB891140A (en) 1957-07-04 1957-07-04 Improvements in or relating to mine roof supporting bars

Publications (1)

Publication Number Publication Date
FR1207659A true FR1207659A (en) 1960-02-18

Family

ID=10157548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1207659D Expired FR1207659A (en) 1957-07-04 1958-07-03 Support bar, in particular for the roof of timbering of mining galleries

Country Status (4)

Country Link
BE (1) BE569133A (en)
FR (1) FR1207659A (en)
GB (1) GB891140A (en)
NL (1) NL229339A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289805B (en) * 1962-01-29 1969-02-27 Groetschel Karl Maria Mechanically retractable face construction unit

Also Published As

Publication number Publication date
NL229339A (en)
GB891140A (en) 1962-03-14
BE569133A (en)

Similar Documents

Publication Publication Date Title
FR1226787A (en) Improvements made to hydraulic props, in particular for galleries or mine corridors
FR1271386A (en) Roof supports for mining galleries
FR1236439A (en) Bil-spindle support system, in particular for mine tunnel ceilings
FR1207659A (en) Support bar, in particular for the roof of timbering of mining galleries
FR1505728A (en) Roof support for mining galleries
FR1207923A (en) Improvements to hydraulic mine props
FR1198999A (en) Support system for mine galleries
FR1167165A (en) Mining stand
FR1200602A (en) prop in particular for mining
FR1242398A (en) Gutter-shaped profile, with flanges, in particular for the support of mine galleries
BE591689R (en) Improvements made to hydraulic props, in particular for galleries or mine corridors
FR1273658A (en) Metal post, in particular for supporting mine galleries
FR77878E (en) Improvements made to hydraulic props, in particular for galleries or mine corridors
FR1251175A (en) Mine roof supports
FR1267037A (en) Roof support bar for mine gallery
FR1284655A (en) Lining panels for mine galleries
BE582782A (en) Gutter-shaped profile, with flanges, in particular for the support of mine galleries
FR1287138A (en) Movable support for mine galleries
FR1318230A (en) Hat, in particular for mechanized support of mine galleries
BE584437A (en) Bolting system for mine tunnel retaining frames.
FR1276329A (en) Improvements made to props for mining galleries and the like
FR1188074A (en) Transporters for mine galleries
FR1197942A (en) Improvements made to hydro-pneumatic supports, especially mine props
BE608407A (en) Base for mine prop.
FR1196318A (en) hydraulic prop for mine