Double ranging drum cutter having bedrock sensor based on video

Details Double ranging drum cutter having bedrock sensor based on video Double ranging drum cutter having bedrock sensor based on video

1986-08-26

1987-12-29

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 43, E21C 3508

Patent

active

047156570

ABSTRACT:
A double ranging drum cutter for long wall type machines for coal extraction is disclosed, which comprises a drum cutter body, a television camera mounted on the drum cutter body for picking up an image of a coal layer cutting portion of a lower bedrock being cut by a cutter drum, a television camera mounted on the drum cutter body for picking up an image of a coal layer cutting portion of an upper bedrock being cut by a cutter drum, and a video image processing unit mounted on the drum cutter body and connected to the television cameras, whereby the boundary between a coal layer and bedrock can be readily judged to permit extraction of much coal without cutting much bedrock and also the ratio of the area of a bedrock to the area of a coal layer in a portion of the bedrock being cut can be readily detected.

REFERENCES:
patent: 3876251 (1975-04-01), Boyd et al.
patent: 4143552 (1979-03-01), Godfrey
patent: 4262964 (1981-04-01), Ingle et al.
patent: 4279443 (1981-07-01), Talcahashi et al.
patent: 4281876 (1981-08-01), Lansberry
patent: 4513504 (1985-04-01), Nussbaumer et al.

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