Apparatus for working deposits by the open-cast working process

Details Apparatus for working deposits by the open-cast working process Apparatus for working deposits by the open-cast working process

1986-01-30

1987-07-07

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 39, 37DIG1, E21C 4702

Patent

active

046782362

ABSTRACT:
The invention relates to an apparatus for working deposits by the open-cast working process with a self-propelled chassis, with a cutting cylinder mounted vertically adjustably thereon to cut away the deposit to a given depth, and with a loading apparatus for the material cut away, in which one or more photosensors I and II are provided at the height of the cut-away surface of the deposit, which react to the light reflected by the deposit and contact the vertical adjustment of the cutting cylinder. The sensors preferably consist of a phototransmitter and a photoreceiver which are arranged juxtaposed and preferably operate with a light wavelength in the infra-red range.
The invention further relates to the special photosensor arrangement in which the photosensor is arranged in, and at a distance from the lower end of a hollow element open at the bottom, arranged preferably vertically behind the cutting cylinder, and a compressed air supply is provided preferably in the upper part of the hollow element, whereby dust and dirt are kept away from the photosensor.

REFERENCES:
patent: 3000121 (1961-09-01), Martin et al.
patent: 3888542 (1975-06-01), Gowler
patent: 3929377 (1975-12-01), Weaver et al.
patent: 4262964 (1981-04-01), Ingle et al.

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