FR1504587A - Perfectionnements aux étançons de mine - Google Patents

Perfectionnements aux étançons de mine

Info

Publication number
FR1504587A
FR1504587A FR76395A FR76395A FR1504587A FR 1504587 A FR1504587 A FR 1504587A FR 76395 A FR76395 A FR 76395A FR 76395 A FR76395 A FR 76395A FR 1504587 A FR1504587 A FR 1504587A
Authority
FR
France
Prior art keywords
mine props
props
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
FR76395A
Other languages
English (en)
Inventor
Fernand Stanislas Allinquant
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
Priority to FR43419A priority Critical patent/FR1492817A/fr
Application filed filed Critical
Priority to FR76395A priority patent/FR1504587A/fr
Priority to DE19661533708 priority patent/DE1533708C2/de
Priority to US3422864D priority patent/US3422864A/en
Priority to US602913A priority patent/US3426995A/en
Priority to GB5713466A priority patent/GB1112860A/en
Priority to GB57136/66A priority patent/GB1162399A/en
Priority to ES334824A priority patent/ES334824A1/es
Priority to ES334826A priority patent/ES334826A1/es
Application granted granted Critical
Publication of FR1504587A publication Critical patent/FR1504587A/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
    • E21D15/50—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
    • E21D15/512—Arrangement of valves

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)
FR76395A 1965-12-22 1966-09-14 Perfectionnements aux étançons de mine Expired FR1504587A (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR43419A FR1492817A (fr) 1965-12-22 1965-12-22 Perfectionnements aux soupapes de décharge et aux dispositifs de foudroyage des étançons de mine hydrauliques
FR76395A FR1504587A (fr) 1966-09-14 1966-09-14 Perfectionnements aux étançons de mine
DE19661533708 DE1533708C2 (de) 1965-12-22 1966-12-15 Umfüllvorrichtung für Druckflüssigkeiten mit automatischer Verriegelung
US602913A US3426995A (en) 1965-12-22 1966-12-19 Hydraulic pit prop
US3422864D US3422864A (en) 1965-12-22 1966-12-19 Self-locking connector for fluid transfer
GB5713466A GB1112860A (en) 1965-12-22 1966-12-21 Self-locking connector for fluid transfer
GB57136/66A GB1162399A (en) 1965-12-22 1966-12-21 Improvements in Hydraulic Pit Props and Like Hydraulic Jack Devices
ES334824A ES334824A1 (es) 1965-12-22 1966-12-22 Dispositivo de conexion con cierre automatico.
ES334826A ES334826A1 (es) 1965-12-22 1966-12-22 Perfeccionamientos en los puntales de mina y otros disposi-tivos de gatos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR76395A FR1504587A (fr) 1966-09-14 1966-09-14 Perfectionnements aux étançons de mine

Publications (1)

Publication Number Publication Date
FR1504587A true FR1504587A (fr) 1967-12-08

Family

ID=8617141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR76395A Expired FR1504587A (fr) 1965-12-22 1966-09-14 Perfectionnements aux étançons de mine

Country Status (1)

Country Link
FR (1) FR1504587A (fr)

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