FR825109A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR825109A
FR825109A FR825109DA FR825109A FR 825109 A FR825109 A FR 825109A FR 825109D A FR825109D A FR 825109DA FR 825109 A FR825109 A FR 825109A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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)
Inventor
Karl Gerlach
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 FR825109A publication Critical patent/FR825109A/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)
FR825109D 1936-08-03 1937-08-02 étançon de mine Expired FR825109A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE825109X 1936-08-03

Publications (1)

Publication Number Publication Date
FR825109A true FR825109A (fr) 1938-02-24

Family

ID=6747447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825109D Expired FR825109A (fr) 1936-08-03 1937-08-02 étançon de mine

Country Status (1)

Country Link
FR (1) FR825109A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741147C (de) * 1939-01-29 1943-11-05 Karl Leh Eiserner Balken fuer Wanderpfeiler
DE767190C (de) * 1938-12-13 1952-03-31 Westdeutscher Industriebedarf Reibungseinlage fuer Grubenausbau-Klemmschloesser
DE976548C (de) * 1943-09-25 1963-11-07 Karl Maria Dipl-Ing Groetschel Kappe fuer den Grubenausbau, vorzugsweise fuer den Strebausbau

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767190C (de) * 1938-12-13 1952-03-31 Westdeutscher Industriebedarf Reibungseinlage fuer Grubenausbau-Klemmschloesser
DE741147C (de) * 1939-01-29 1943-11-05 Karl Leh Eiserner Balken fuer Wanderpfeiler
DE976548C (de) * 1943-09-25 1963-11-07 Karl Maria Dipl-Ing Groetschel Kappe fuer den Grubenausbau, vorzugsweise fuer den Strebausbau

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