BE697578A - - Google Patents

Info

Publication number
BE697578A
BE697578A BE697578DA BE697578A BE 697578 A BE697578 A BE 697578A BE 697578D A BE697578D A BE 697578DA BE 697578 A BE697578 A BE 697578A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE697578A publication Critical patent/BE697578A/xx

Links

Classifications

    • 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

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)
  • Transmission Devices (AREA)
  • Prostheses (AREA)
BE697578D 1966-05-14 1967-04-26 BE697578A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0059250 1966-05-14

Publications (1)

Publication Number Publication Date
BE697578A true BE697578A (enrdf_load_html_response) 1967-10-02

Family

ID=7229060

Family Applications (1)

Application Number Title Priority Date Filing Date
BE697578D BE697578A (enrdf_load_html_response) 1966-05-14 1967-04-26

Country Status (3)

Country Link
US (1) US3503302A (enrdf_load_html_response)
BE (1) BE697578A (enrdf_load_html_response)
GB (1) GB1179597A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838516A (en) * 1986-06-10 1989-06-13 The Jacobs Manufacturing Company Compression release retarder with valve motion modifier
US4706624A (en) * 1986-06-10 1987-11-17 The Jacobs Manufacturing Company Compression release retarder with valve motion modifier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US901712A (en) * 1907-06-13 1908-10-20 Jeannot W Kenevel Valve-controlling means.
US974189A (en) * 1907-12-23 1910-11-01 Frank Ritter Valve mechanism for dental or other similar chairs.
US2657028A (en) * 1949-06-15 1953-10-27 Joy Mfg Co Walking jack
US2585389A (en) * 1950-03-11 1952-02-12 Gen Motors Corp Hydraulic control
US2748799A (en) * 1952-11-15 1956-06-05 Standard Oil Co Simultaneously-operated liquid and gas vent valves
US2783773A (en) * 1953-11-30 1957-03-05 Rasch Albert Replacement for faucet valves
US2825240A (en) * 1954-10-14 1958-03-04 Radiart Corp Hydraulic antenna rotator
DE1251256B (de) * 1959-10-12 1967-10-05 Coal Industry (Patents) Limited, London Wandernder Strebausbau
GB982978A (en) * 1960-08-10 1965-02-10 Dowty Mining Equipment Ltd Roof supports suitable for use in mines

Also Published As

Publication number Publication date
GB1179597A (en) 1970-01-28
US3503302A (en) 1970-03-31

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