FR792321A - étancon extensible avec poincon et fût fermés - Google Patents

étancon extensible avec poincon et fût fermés

Info

Publication number
FR792321A
FR792321A FR792321DA FR792321A FR 792321 A FR792321 A FR 792321A FR 792321D A FR792321D A FR 792321DA FR 792321 A FR792321 A FR 792321A
Authority
FR
France
Prior art keywords
stanchion
expandable
barrel
closed punch
punch
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
Clement Lucien
Chabert Charles
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 FR792321A publication Critical patent/FR792321A/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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
    • E21D15/5817—Devices for setting props or chocks in which the props are pre- loaded in which the lock is also activated

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)
FR792321D 1935-07-08 1935-07-08 étancon extensible avec poincon et fût fermés Expired FR792321A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR792321T 1935-07-08

Publications (1)

Publication Number Publication Date
FR792321A true FR792321A (fr) 1935-12-28

Family

ID=9229736

Family Applications (1)

Application Number Title Priority Date Filing Date
FR792321D Expired FR792321A (fr) 1935-07-08 1935-07-08 étancon extensible avec poincon et fût fermés

Country Status (1)

Country Link
FR (1) FR792321A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740768C (de) * 1942-04-10 1943-10-28 Bernhard Ruehl Nachgiebiger Grubenstempel
DE767086C (de) * 1937-05-25 1952-07-03 Karl Gerlach Eiserner Grubenstempel
DE919164C (de) * 1942-03-14 1954-10-14 Gerlach Karl Vorrichtung zum Setzen von Stahlgrubenstempeln
DE919163C (de) * 1942-01-28 1954-10-14 Gerlach Karl Vorrichtung zum Setzen von Stahlgrubenstempeln
DE922582C (de) * 1948-04-21 1955-02-21 Ludwig Vanwersch Grubenstempel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767086C (de) * 1937-05-25 1952-07-03 Karl Gerlach Eiserner Grubenstempel
DE919163C (de) * 1942-01-28 1954-10-14 Gerlach Karl Vorrichtung zum Setzen von Stahlgrubenstempeln
DE919164C (de) * 1942-03-14 1954-10-14 Gerlach Karl Vorrichtung zum Setzen von Stahlgrubenstempeln
DE740768C (de) * 1942-04-10 1943-10-28 Bernhard Ruehl Nachgiebiger Grubenstempel
DE922582C (de) * 1948-04-21 1955-02-21 Ludwig Vanwersch Grubenstempel

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