Cutter drum extension latching mechanism

Details Cutter drum extension latching mechanism Cutter drum extension latching mechanism

1982-07-01

1984-12-25

Pate, III, William F.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Adjustable head

175267, 92 24, 92 27, 92108, E21C 2724

Patent

active

044899858

ABSTRACT:
A continuous mining machine cutting head structure is set forth. The mining machine is of a type having a support member and an elongated mining head member mounted on the forward end of the support member. The head member is powered for rotation about its longitudinal axis. The head member is of the type having axially extensible and retractable end portions. Included within the head member is a hydraulic piston cylinder arrangement for selectively extending and retracting these end portions. At least one latch element is included within each side of the head member and can be moved into locking engagement with the end portions when it is in an extended position thereby preventing retraction thereof. Also included is a mechanism operatively connected to the piston cylinder arrangement which is capable of moving the latch element out of engagement with the end portion thereby permitting retraction thereof.

REFERENCES:
patent: 2771060 (1956-11-01), Allbright
patent: 3109635 (1963-11-01), Bergmann
patent: 3278237 (1966-10-01), Karlovsky
patent: 3617093 (1971-11-01), Daily
patent: 3695725 (1972-10-01), Pendolino
patent: 3712679 (1979-01-01), Amoroso
patent: 3844618 (1974-10-01), Delli-Gatti, Jr.
patent: 3874735 (1975-04-01), Delli-Gatti, Jr.
patent: 4076316 (1978-02-01), LeBegve

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