GB867295A - Coal-winning apparatus - Google Patents

Coal-winning apparatus

Info

Publication number
GB867295A
GB867295A GB621960A GB621960A GB867295A GB 867295 A GB867295 A GB 867295A GB 621960 A GB621960 A GB 621960A GB 621960 A GB621960 A GB 621960A GB 867295 A GB867295 A GB 867295A
Authority
GB
United Kingdom
Prior art keywords
conveyer
channel
troughing
chain
jacks
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
GB621960A
Inventor
Johannes Gerardus Krapels
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Priority to GB621960A priority Critical patent/GB867295A/en
Publication of GB867295A publication Critical patent/GB867295A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

867,295. Mineral-mining apparatus. STAMICARBON N. V. Feb. 22, 1960, No. 6219/60. Class 68(1). A mineral-mining apparatus in which one or more winning machines, e.g. ploughs, are hauled to and fro along and against one side of a scraper conveyer is so designed that when dust created by and directed into the lower channel of the troughing of the conveyer by the machines accumulates to cause impedance above a certain value to the passage of the lower run of the endless scraper chain through said channel the hauling of the machine(s) is automatically interrupted to allow the lower run of the chain to clear said channel. In order that this may occur the sprocket-carrying drum 10 at one end of the conveyer is carried by a shaft 11 rotatable in bearings 12 slidably mounted in longitudinally extending guides in the side of the troughing. The bearings are secured to the piston rods 14 of chain-tensioning jacks 13, 14. As the dust accumulates in the lower channel of the troughing the drum 10 is urged inwards from the adjacent end of the conveyer to cause an increase in the pressure in the hydraulic system of the jacks in proportion to the increase in tension in the lower run of the scraper chain due to the dust. On a predetermined pressure in the hydraulic system of the jacks being reached a pressure relay operates a switch 21 to stop the drive of the haulage of the winning machine(s).
GB621960A 1960-02-22 1960-02-22 Coal-winning apparatus Expired GB867295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB621960A GB867295A (en) 1960-02-22 1960-02-22 Coal-winning apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB621960A GB867295A (en) 1960-02-22 1960-02-22 Coal-winning apparatus

Publications (1)

Publication Number Publication Date
GB867295A true GB867295A (en) 1961-05-03

Family

ID=9810579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB621960A Expired GB867295A (en) 1960-02-22 1960-02-22 Coal-winning apparatus

Country Status (1)

Country Link
GB (1) GB867295A (en)

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