Coal shaver

Details Coal shaver Coal shaver

1988-02-23

1988-09-06

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter attached to endless chain or cable

299 85, E21C 2735, E21C 2742

Patent

active

047688360

ABSTRACT:
A coal shaver includes an elongated carriage body that can be pulled by a link chain back and forth in parallel with the side wall of a coal deposit and two shaver devices respectively mounted on the elongated carriage body near its opposite ends. Each shaver device includes a first cutter member which includes a first elongated cutter strip of vertically spaced apart shearing blades that extend inwardly of the coal shaver, i.e., toward the first elongated cutter strip of the other shaver device, and towards the side wall of the coal deposit, and a second cutter member which is pivotally connected to the first cutter member so as to pivot about a horizontal axis, the second cutter member including a second elongated cutter strip which faces outwardly of the coal shaver and towards the side wall of the coal deposit.

REFERENCES:
patent: 3118657 (1964-01-01), Lobbe
patent: 3445138 (1969-05-01), Lobbe et al.
patent: 3804465 (1974-04-01), Ostrop et al.
patent: 4025117 (1977-05-01), Bahre et al.
patent: 4159850 (1979-07-01), Lobbe et al.
Operating Instructions for Coal Planar Devices Made by Gewerkschaft Eisenhutte Westfalia of Lunen, Federal Republic of Germany, p. 13, (1981).
Lurig et al., "Entwicklungsstand der Schalenden Gewinnung", in Gluckauf, 117, (1981), No. 11, pp. 625-631.

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