FR1056693A - Poteau de mine contractable sous la charge - Google Patents

Poteau de mine contractable sous la charge

Info

Publication number
FR1056693A
FR1056693A FR1056693DA FR1056693A FR 1056693 A FR1056693 A FR 1056693A FR 1056693D A FR1056693D A FR 1056693DA FR 1056693 A FR1056693 A FR 1056693A
Authority
FR
France
Prior art keywords
mine
pole
under load
contractable
contractable under
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)
Inventor
Campbell Ritchie
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 FR1056693A publication Critical patent/FR1056693A/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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
    • 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
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Clamps And Clips (AREA)
FR1056693D 1951-05-21 1952-05-20 Poteau de mine contractable sous la charge Expired FR1056693A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1177551A GB711603A (en) 1951-05-21 1951-05-21 Improvements in and relating to yielding pit-props

Publications (1)

Publication Number Publication Date
FR1056693A true FR1056693A (fr) 1954-03-01

Family

ID=9992467

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1056693D Expired FR1056693A (fr) 1951-05-21 1952-05-20 Poteau de mine contractable sous la charge

Country Status (3)

Country Link
BE (1) BE511527A (fi)
FR (1) FR1056693A (fi)
GB (1) GB711603A (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009139B (de) * 1955-12-30 1957-05-29 Hermann Schwarz Kommanditgesel Zweiteiliger metallischer Grubenstempel mit einer durch Reibungsschluss unter elastischer Verformung erfolgenden Verspannung der Stempelteile und Verfahren zum Setzen
DE1023436B (de) * 1955-11-24 1958-01-30 Hermann Schwarz Kommanditgesel Hydraulischer Grubenstempel
DE1024040B (de) * 1956-07-11 1958-02-13 Hermann Schwarz Kommanditgesel Absperrventil fuer einen mit Fluessigkeit gefuellten Druckraum bei Grubenausbaumitteln
DE1085121B (de) * 1955-02-26 1960-07-14 Hoesch Ag Druckmittelbetaetigter Grubenstempel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085121B (de) * 1955-02-26 1960-07-14 Hoesch Ag Druckmittelbetaetigter Grubenstempel
DE1023436B (de) * 1955-11-24 1958-01-30 Hermann Schwarz Kommanditgesel Hydraulischer Grubenstempel
DE1009139B (de) * 1955-12-30 1957-05-29 Hermann Schwarz Kommanditgesel Zweiteiliger metallischer Grubenstempel mit einer durch Reibungsschluss unter elastischer Verformung erfolgenden Verspannung der Stempelteile und Verfahren zum Setzen
DE1024040B (de) * 1956-07-11 1958-02-13 Hermann Schwarz Kommanditgesel Absperrventil fuer einen mit Fluessigkeit gefuellten Druckraum bei Grubenausbaumitteln

Also Published As

Publication number Publication date
GB711603A (en) 1954-07-07
BE511527A (fi)

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