FR59148E - Joining devices for metal caps used mainly for support used in mines - Google Patents

Joining devices for metal caps used mainly for support used in mines

Info

Publication number
FR59148E
FR59148E FR59148DA FR59148E FR 59148 E FR59148 E FR 59148E FR 59148D A FR59148D A FR 59148DA FR 59148 E FR59148 E FR 59148E
Authority
FR
France
Prior art keywords
mines
metal caps
joining devices
support
mainly
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
Charles Chabert
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 FR59148E publication Critical patent/FR59148E/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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Electrophonic Musical Instruments (AREA)
FR59148D 1949-04-08 1949-04-08 Joining devices for metal caps used mainly for support used in mines Expired FR59148E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR59148T 1949-04-08

Publications (1)

Publication Number Publication Date
FR59148E true FR59148E (en) 1954-04-23

Family

ID=8692991

Family Applications (2)

Application Number Title Priority Date Filing Date
FR961507D Expired FR961507A (en) 1949-04-08
FR59148D Expired FR59148E (en) 1949-04-08 1949-04-08 Joining devices for metal caps used mainly for support used in mines

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR961507D Expired FR961507A (en) 1949-04-08

Country Status (2)

Country Link
BE (2) BE487158A (en)
FR (2) FR59148E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1130143A (en) * 1955-07-27 1957-01-31 Articulated extension for mine supports
DE1127301B (en) * 1956-08-14 1962-04-12 Karl Gerlach Cap connection for longwall mining

Also Published As

Publication number Publication date
BE487158A (en)
BE494909A (en)
FR961507A (en) 1950-05-13

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