FR1197942A - Perfectionnements apportés aux supports hydro-pneumatiques, notamment aux étançons de mines - Google Patents

Perfectionnements apportés aux supports hydro-pneumatiques, notamment aux étançons de mines

Info

Publication number
FR1197942A
FR1197942A FR1197942DA FR1197942A FR 1197942 A FR1197942 A FR 1197942A FR 1197942D A FR1197942D A FR 1197942DA FR 1197942 A FR1197942 A FR 1197942A
Authority
FR
France
Prior art keywords
hydro
improvements made
pneumatic supports
mine props
especially 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)
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.)
BEIEN MASCHFAB
Original Assignee
BEIEN MASCHFAB
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 BEIEN MASCHFAB filed Critical BEIEN MASCHFAB
Application granted granted Critical
Publication of FR1197942A publication Critical patent/FR1197942A/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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/517—Extension elements

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)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Damping Devices (AREA)
FR1197942D 1957-01-25 1958-01-16 Perfectionnements apportés aux supports hydro-pneumatiques, notamment aux étançons de mines Expired FR1197942A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM33039A DE1122476B (de) 1957-01-25 1957-01-25 Hydraulisch-pneumatische Stuetzvorrichtung, insbesondere Grubenstempel

Publications (1)

Publication Number Publication Date
FR1197942A true FR1197942A (fr) 1959-12-03

Family

ID=7301657

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1197942D Expired FR1197942A (fr) 1957-01-25 1958-01-16 Perfectionnements apportés aux supports hydro-pneumatiques, notamment aux étançons de mines

Country Status (3)

Country Link
BE (1) BE564237A (fr)
DE (1) DE1122476B (fr)
FR (1) FR1197942A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE804199C (de) * 1949-07-14 1951-04-16 Gutehoffnungshuette Oberhausen Hydraulischer oder pneumatisch-hydraulischer Grubenstempel
DE934342C (de) * 1954-06-27 1955-10-20 Gutehoffnungshuette Sterkrade Mehrteiliger hydraulischer Grubenstempel
DE1035084B (de) * 1956-06-07 1958-07-31 Hans Joachim Von Hippel Dr Ing Mechanisiertes, den Hangenddruck grossflaechig abstuetzendes Ausbauelement

Also Published As

Publication number Publication date
BE564237A (fr)
DE1122476B (de) 1962-01-25

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