FR29397E - étrésillon de mine élastique et récupérable - Google Patents

étrésillon de mine élastique et récupérable

Info

Publication number
FR29397E
FR29397E FR29397DA FR29397E FR 29397 E FR29397 E FR 29397E FR 29397D A FR29397D A FR 29397DA FR 29397 E FR29397 E FR 29397E
Authority
FR
France
Prior art keywords
resilient
lead strut
recoverable
recoverable lead
strut
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.)
APP POUR MINES SOC D
Original Assignee
APP POUR MINES SOC D
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 APP POUR MINES SOC D filed Critical APP POUR MINES SOC D
Application granted granted Critical
Publication of FR29397E publication Critical patent/FR29397E/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
    • E21D15/36—Telescopic props with parts held relatively to each other by friction or gripping by a tiltable collar surrounding one or both parts

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)
FR29397D 1924-07-30 1924-07-30 étrésillon de mine élastique et récupérable Expired FR29397E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR29397T 1924-07-30

Publications (1)

Publication Number Publication Date
FR29397E true FR29397E (fr) 1925-07-25

Family

ID=8667423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR29397D Expired FR29397E (fr) 1924-07-30 1924-07-30 étrésillon de mine élastique et récupérable

Country Status (1)

Country Link
FR (1) FR29397E (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751231C (de) * 1939-01-17 1953-05-18 Becorit Ges Wilhelm Beckmann & Eiserner Grubenstempel
DE757741C (de) * 1939-08-27 1953-11-02 Walter Hartwig Grubenstempel
DE900685C (de) * 1949-03-15 1954-01-04 Hermann Schwarz Kommanditgesel Zweiteiliger Grubenstempel
DE937221C (de) * 1936-08-04 1955-12-29 Gerlach Karl Stahlgrubenstempel
DE975699C (de) * 1950-03-16 1962-05-30 Niederlaendischer Staat Nachgiebiger metallener Grubenstempel
DE1147552B (de) * 1954-05-17 1963-04-25 Bochumer Eisen Heintzmann Nachgiebiger Rohrstempel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937221C (de) * 1936-08-04 1955-12-29 Gerlach Karl Stahlgrubenstempel
DE751231C (de) * 1939-01-17 1953-05-18 Becorit Ges Wilhelm Beckmann & Eiserner Grubenstempel
DE757741C (de) * 1939-08-27 1953-11-02 Walter Hartwig Grubenstempel
DE900685C (de) * 1949-03-15 1954-01-04 Hermann Schwarz Kommanditgesel Zweiteiliger Grubenstempel
DE975699C (de) * 1950-03-16 1962-05-30 Niederlaendischer Staat Nachgiebiger metallener Grubenstempel
DE1147552B (de) * 1954-05-17 1963-04-25 Bochumer Eisen Heintzmann Nachgiebiger Rohrstempel

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