Apparatus for working deposits by the open-cast working process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1987
Grant Date -
N/A
app pub date -
Jan 30, 1986
filing date -
Feb 11, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Other Claims data not available