BE559110A - - Google Patents

Info

Publication number
BE559110A
BE559110A BE559110DA BE559110A BE 559110 A BE559110 A BE 559110A BE 559110D A BE559110D A BE 559110DA BE 559110 A BE559110 A BE 559110A
Authority
BE
Belgium
Application number
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.)
Publication of BE559110A publication Critical patent/BE559110A/xx

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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Actuator (AREA)
BE559110D 1956-07-11 BE559110A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH20419A DE1024040B (de) 1956-07-11 1956-07-11 Absperrventil fuer einen mit Fluessigkeit gefuellten Druckraum bei Grubenausbaumitteln

Publications (1)

Publication Number Publication Date
BE559110A true BE559110A (en:Method)

Family

ID=7428760

Family Applications (1)

Application Number Title Priority Date Filing Date
BE559110D BE559110A (en:Method) 1956-07-11

Country Status (5)

Country Link
US (1) US2912211A (en:Method)
BE (1) BE559110A (en:Method)
DE (1) DE1024040B (en:Method)
FR (1) FR1178396A (en:Method)
GB (1) GB852354A (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904866A (en) * 1958-06-30 1962-08-29 Dowty Mining Equipment Ltd Improvements in hydraulic props
DE1082212B (de) * 1958-12-31 1960-05-25 Bwg Bergwerk Walzwerk Be- und Entlueftungsventil fuer hydraulische Grubenstempel
DE1231648B (de) * 1960-08-11 1967-01-05 Bochumer Eisen Heintzmann Hydraulisches Ausbauelement, insbesondere fuer den untertaegigen Grubenbetrieb
NL277490A (en:Method) * 1961-04-20
CN110748366A (zh) * 2019-10-20 2020-02-04 山西晋城无烟煤矿业集团有限责任公司 一种液压阀阀芯磁力安装机构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR354739A (fr) * 1905-05-25 1905-10-11 Albert Cordebart Appareil pour le gonflement des bandages pneumatiques
US1026471A (en) * 1910-06-13 1912-05-14 George R Siefken Ventilator.
US2247568A (en) * 1938-05-13 1941-07-01 Proportioneers Inc Injection nozzle
GB538377A (en) * 1940-01-30 1941-07-31 Du Pont Manufacture of dyestuffs of the anthraquinone series
US2502158A (en) * 1946-09-27 1950-03-28 Kuskey Rude Backup trap
BE494572A (en:Method) * 1949-12-08
BE511527A (en:Method) * 1951-05-21

Also Published As

Publication number Publication date
GB852354A (en) 1960-10-26
US2912211A (en) 1959-11-10
FR1178396A (fr) 1959-05-06
DE1024040B (de) 1958-02-13

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