FR1421744A - Hydraulic control installation for the frames of a walking gallery support, for example in coal mines - Google Patents

Hydraulic control installation for the frames of a walking gallery support, for example in coal mines

Info

Publication number
FR1421744A
FR1421744A FR999952A FR999952A FR1421744A FR 1421744 A FR1421744 A FR 1421744A FR 999952 A FR999952 A FR 999952A FR 999952 A FR999952 A FR 999952A FR 1421744 A FR1421744 A FR 1421744A
Authority
FR
France
Prior art keywords
frames
hydraulic control
coal mines
control installation
gallery support
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
FR999952A
Other languages
French (fr)
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.)
Salzgitter Maschinen AG
Original Assignee
Salzgitter Maschinen AG
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 Salzgitter Maschinen AG filed Critical Salzgitter Maschinen AG
Priority to FR999952A priority Critical patent/FR1421744A/en
Application granted granted Critical
Publication of FR1421744A publication Critical patent/FR1421744A/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
    • E21D23/26—Hydraulic or pneumatic control

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)
FR999952A 1963-12-24 1964-12-24 Hydraulic control installation for the frames of a walking gallery support, for example in coal mines Expired FR1421744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR999952A FR1421744A (en) 1963-12-24 1964-12-24 Hydraulic control installation for the frames of a walking gallery support, for example in coal mines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES0088877 1963-12-24
FR999952A FR1421744A (en) 1963-12-24 1964-12-24 Hydraulic control installation for the frames of a walking gallery support, for example in coal mines

Publications (1)

Publication Number Publication Date
FR1421744A true FR1421744A (en) 1965-12-17

Family

ID=25997528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR999952A Expired FR1421744A (en) 1963-12-24 1964-12-24 Hydraulic control installation for the frames of a walking gallery support, for example in coal mines

Country Status (1)

Country Link
FR (1) FR1421744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113756849A (en) * 2021-09-01 2021-12-07 中煤科工开采研究院有限公司 Control method for omnidirectional mobile hydraulic support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113756849A (en) * 2021-09-01 2021-12-07 中煤科工开采研究院有限公司 Control method for omnidirectional mobile hydraulic support
CN113756849B (en) * 2021-09-01 2024-02-09 中煤科工开采研究院有限公司 Control method for omni-directional mobile hydraulic support

Similar Documents

Publication Publication Date Title
FR1501408A (en) Oil recovery from tar sands
CH515092A (en) Installation for electro-erosion machining
FR1421744A (en) Hydraulic control installation for the frames of a walking gallery support, for example in coal mines
FR1319372A (en) Walking pile for mine support
FR1359043A (en) Improvements made to support frames for galleries or mine corridors
FR1293618A (en) Improvements made to so-called "support bolts" devices, especially for mine roofs
FR1429175A (en) Equipment for coal mining
FR1427577A (en) equipment for coal mining
FR1373233A (en) Installation for coal mining in plateure sizes
FR1359021A (en) Collapsible support for mine support
FR1355486A (en) Coal mining machine
FR1487717A (en) Support for underground mining
FR1255168A (en) Improvements in hydraulic support elements for mine clearance corridors
FR1453017A (en) deformable prop for mining operations
FR1442070A (en) Sliding support for a mine gallery
FR1425013A (en) Sliding support for a mine gallery
FR86128E (en) Improvements made to retaining frames for mine clearance corridors
FR1359017A (en) hydraulic prop for mines
FR1310787A (en) Improvements to movable supports for mine clearance lanes
FR1399886A (en) Support system for mining
FR1390275A (en) Hydraulic locking device for mine props
FR1432714A (en) Re-centering device for mine prop
FR1514945A (en) Roof shoring system for the mechanized walking support of extraction galleries
FR1412314A (en) Chain planing plant for coal mining
FR1453645A (en) Extension for hydraulic mine props