Method of and apparatus for the mining of coal

Mining or in situ disintegration of hard material – Processes – With material-handling

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Details

299 31, 299 46, E21C 2568, E21C 2506

Patent

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040958450

ABSTRACT:
An excavating mining and conveying apparatus is formed of trough segments or sections with screw sections mounted on the trough sections carrying out the mining and conveying functions. Actuating means are provided to bring the screws successively into inclined contact with the face or seam of coal at an angle of from 5.degree. to 50.degree.. A drive is provided to transmit a torque to drive the conveying and transporting screws.

REFERENCES:
patent: 3445139 (1969-05-01), von Hippel
patent: 3524680 (1970-08-01), White
patent: 3640580 (1972-02-01), White

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