Hewing or cutting roll

Details Hewing or cutting roll Hewing or cutting roll

2007-02-13

2007-02-13

Kreck, John (Department: 3673)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Adjustable head

Reexamination Certificate

active

11125794

ABSTRACT:
In a hewing or cutting roll including a central roll part and at least one lateral roll part telescopically extractable in the axial direction of the roll, wherein the central roll part and the extractable roll part have each a connection site for a hydraulic cylinder piston unit, the hydraulic cylinder piston unit is arranged to be pivotable relative to the central roll part and/or the extractable roll part about at least two axes and, in particular, universally.

REFERENCES:
patent: 2801094 (1957-07-01), Ball
patent: 2919150 (1959-12-01), Baker
patent: 3617093 (1971-11-01), Daily
patent: 3844618 (1974-10-01), Delli-Gatti, Jr.
patent: 4489985 (1984-12-01), Kendrick
patent: 5163769 (1992-11-01), Dresselhouse

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