FR1047681A - étancon de mine perfectionné - Google Patents

étancon de mine perfectionné

Info

Publication number
FR1047681A
FR1047681A FR1047681DA FR1047681A FR 1047681 A FR1047681 A FR 1047681A FR 1047681D A FR1047681D A FR 1047681DA FR 1047681 A FR1047681 A FR 1047681A
Authority
FR
France
Prior art keywords
stanchion
advanced mine
mine
advanced
mine stanchion
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)
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.)
Directie van de Staatsmijnen in Limburg
Original Assignee
Directie van de Staatsmijnen in Limburg
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 Directie van de Staatsmijnen in Limburg filed Critical Directie van de Staatsmijnen in Limburg
Application granted granted Critical
Publication of FR1047681A publication Critical patent/FR1047681A/fr
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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR1047681D 1950-03-16 1951-03-12 étancon de mine perfectionné Expired FR1047681A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1047681X 1950-03-16

Publications (1)

Publication Number Publication Date
FR1047681A true FR1047681A (fr) 1953-12-16

Family

ID=19867792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1047681D Expired FR1047681A (fr) 1950-03-16 1951-03-12 étancon de mine perfectionné

Country Status (1)

Country Link
FR (1) FR1047681A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023735B (de) * 1954-04-08 1958-02-06 Gutehoffnungshuette Sterkrade Mehrteiliger Metallgrubenstempel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023735B (de) * 1954-04-08 1958-02-06 Gutehoffnungshuette Sterkrade Mehrteiliger Metallgrubenstempel

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