FR1074602A - Bèle à mâchoire d'accrochage renforcée - Google Patents

Bèle à mâchoire d'accrochage renforcée

Info

Publication number
FR1074602A
FR1074602A FR1074602DA FR1074602A FR 1074602 A FR1074602 A FR 1074602A FR 1074602D A FR1074602D A FR 1074602DA FR 1074602 A FR1074602 A FR 1074602A
Authority
FR
France
Prior art keywords
reinforced
hooking jaw
hooking
jaw
reinforced hooking
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
English (en)
French (fr)
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.)
LE PROGRES CHARBONNIER
Original Assignee
LE PROGRES CHARBONNIER
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 LE PROGRES CHARBONNIER filed Critical LE PROGRES CHARBONNIER
Application granted granted Critical
Publication of FR1074602A publication Critical patent/FR1074602A/fr
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)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
FR1074602D 1951-12-28 1952-10-17 Bèle à mâchoire d'accrochage renforcée Expired FR1074602A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE508081T 1951-12-28

Publications (1)

Publication Number Publication Date
FR1074602A true FR1074602A (fr) 1954-10-07

Family

ID=3878815

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1074602D Expired FR1074602A (fr) 1951-12-28 1952-10-17 Bèle à mâchoire d'accrochage renforcée

Country Status (5)

Country Link
BE (1) BE508081A (ja)
DE (1) DE1025366B (ja)
FR (1) FR1074602A (ja)
GB (1) GB718352A (ja)
NL (2) NL89415C (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196613B (de) * 1962-07-31 1965-07-15 Aloys Vanwersch Kappenverbindung fuer den Strebausbau in Untertagebetrieben
DE2849890C2 (de) * 1978-11-17 1990-04-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenverbindung, insbesondere für Vorpfändkappen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE503626A (ja) *
DE804317C (de) * 1949-03-22 1951-04-19 Otto Leppak Verfahren zur Schaffung einer stempelfreien Abbaufront beim eisernen Strebausbau

Also Published As

Publication number Publication date
DE1025366B (de) 1958-03-06
NL89415C (ja) 1958-06-16
GB718352A (en) 1954-11-10
NL173308B (nl)
BE508081A (ja) 1952-01-15

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