PL91238B1 - - Google Patents

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Publication number
PL91238B1
PL91238B1 PL1973166922A PL16692273A PL91238B1 PL 91238 B1 PL91238 B1 PL 91238B1 PL 1973166922 A PL1973166922 A PL 1973166922A PL 16692273 A PL16692273 A PL 16692273A PL 91238 B1 PL91238 B1 PL 91238B1
Authority
PL
Poland
Prior art keywords
control
dosing
cylinder
line
cylinders
Prior art date
Application number
PL1973166922A
Other languages
English (en)
Polish (pl)
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 PL91238B1 publication Critical patent/PL91238B1/pl

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material
    • E21C35/14—Equipment for pressing the conveyor towards the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/282—Autonomous machines; Autonomous operations
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors 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)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Conveyors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
PL1973166922A 1972-11-29 1973-11-29 PL91238B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2258423A DE2258423C3 (de) 1972-11-29 1972-11-29 Einrichtung zum Rücken der Führung einer Gewinnungsmaschine o.dgl. für Bergbau-Gewinnungsbetriebe, mit dosierter Beaufschlagung der Rückzylinder

Publications (1)

Publication Number Publication Date
PL91238B1 true PL91238B1 (enrdf_load_stackoverflow) 1977-02-28

Family

ID=5863023

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1973166922A PL91238B1 (enrdf_load_stackoverflow) 1972-11-29 1973-11-29

Country Status (7)

Country Link
BE (1) BE801901A (enrdf_load_stackoverflow)
CS (1) CS237305B2 (enrdf_load_stackoverflow)
DE (1) DE2258423C3 (enrdf_load_stackoverflow)
FR (1) FR2208045B1 (enrdf_load_stackoverflow)
GB (1) GB1454530A (enrdf_load_stackoverflow)
PL (1) PL91238B1 (enrdf_load_stackoverflow)
SU (1) SU730314A3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2606394C2 (de) * 1976-02-18 1984-12-20 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hobelandrucksteuerung für eine Bergbau-Gewinnungsanlage
DE3110220A1 (de) * 1981-03-17 1982-10-07 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulische, insbesondere elektro-hydraulische ausbausteuerung fuer untertaegige gewinnungsbetriebe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1160451A (en) 1966-02-22 1969-08-06 Coal Industry Patents Ltd Fixed Increment Advance of Face Conveyors
DE1483957C3 (de) 1966-06-18 1978-12-14 Gewerkschaft Eisenhuette Westfalia, 4628 Altluenen Rückeinrichtung für einen Strebförderer oder eine Führungsschiene mit daran geführter Gewinnungsmaschine

Also Published As

Publication number Publication date
FR2208045A1 (enrdf_load_stackoverflow) 1974-06-21
SU730314A3 (ru) 1980-04-25
DE2258423B2 (de) 1980-03-27
CS386073A2 (en) 1984-12-14
FR2208045B1 (enrdf_load_stackoverflow) 1977-02-11
DE2258423C3 (de) 1980-11-13
GB1454530A (en) 1976-11-03
BE801901A (fr) 1973-11-05
CS237305B2 (en) 1985-07-16
DE2258423A1 (de) 1974-05-30

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