CA832741A - Mechanized hydraulic timbering - Google Patents

Mechanized hydraulic timbering

Info

Publication number
CA832741A
CA832741A CA832741A CA832741DA CA832741A CA 832741 A CA832741 A CA 832741A CA 832741 A CA832741 A CA 832741A CA 832741D A CA832741D A CA 832741DA CA 832741 A CA832741 A CA 832741A
Authority
CA
Canada
Prior art keywords
timbering
mechanized hydraulic
mechanized
hydraulic
hydraulic timbering
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
CA832741A
Inventor
Vasilievich Martynov Boris
Semenovich Polei Leonid
Ilich Makarov Nikolai
Pavlovich Belov Nikolai
Ilich Peker Lev
Nikolaevich Yanin Boris
Eduardovich Roters Eduard
Nikolaevna Sidorkina Elena
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.)
Podmoskovny Gosudarstvenny Proektnokonstruktorsky I Experimentalny Insti Tut Gornogo Mashinostroenia
Original Assignee
Podmoskovny Gosudarstvenny Proektnokonstruktorsky I Experimentalny Insti Tut Gornogo Mashinostroenia
Publication date
Application granted granted Critical
Publication of CA832741A publication Critical patent/CA832741A/en
Expired legal-status Critical Current

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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms

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)
CA832741A Mechanized hydraulic timbering Expired CA832741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA832741T

Publications (1)

Publication Number Publication Date
CA832741A true CA832741A (en) 1970-01-27

Family

ID=210952

Family Applications (1)

Application Number Title Priority Date Filing Date
CA832741A Expired CA832741A (en) Mechanized hydraulic timbering

Country Status (1)

Country Link
CA (1) CA832741A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739586A (en) * 1971-06-05 1973-06-19 Kloeckner Werke Ag Self-advancing coal face support system
US3779023A (en) * 1971-12-01 1973-12-18 Rheinstahl Ag Shield roof support
US3811288A (en) * 1972-05-15 1974-05-21 Kloeckner Werke Ag Traveling face support with an attached extensible shield
US3921409A (en) * 1974-02-15 1975-11-25 Bochumer Eisen Heintzmann Support for the roof of an excavation
US4299517A (en) * 1979-02-14 1981-11-10 Voest-Alpine Aktiengesellschaft Mine roof supporting structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739586A (en) * 1971-06-05 1973-06-19 Kloeckner Werke Ag Self-advancing coal face support system
US3779023A (en) * 1971-12-01 1973-12-18 Rheinstahl Ag Shield roof support
US3811288A (en) * 1972-05-15 1974-05-21 Kloeckner Werke Ag Traveling face support with an attached extensible shield
US3921409A (en) * 1974-02-15 1975-11-25 Bochumer Eisen Heintzmann Support for the roof of an excavation
US4299517A (en) * 1979-02-14 1981-11-10 Voest-Alpine Aktiengesellschaft Mine roof supporting structure

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