Method and apparatus for holding a cutting bit

Details Method and apparatus for holding a cutting bit Method and apparatus for holding a cutting bit

1990-09-07

1992-02-18

Bagnell, David J.

Mining or in situ disintegration of hard material

Miscellaneous

175413, F21C 3518

Patent

active

050887971

ABSTRACT:
A mining bit holding system is provided which includes a bit holder which attaches to the rotatable drum of a mining machine. The bit holder includes a base portion and a body portion. The body portion has an aperture therethrough to receive a sleeve. The sleeve has an aperture therethrough for rotatably receiving a cutting bit. The sleeve and bit holder are constructed such that the position of the sleeve may be fixed axially with respect to the body portion by an interference fit in such a manner that it may be easily removed from the body portion.

REFERENCES:
patent: 2800302 (1952-01-01), McClennan
patent: 3143177 (1964-08-01), Galorneau et al.
patent: 3537539 (1970-11-01), Adock
patent: 3717209 (1973-02-01), Sheldon et al.
patent: 3771612 (1973-11-01), Adcock
patent: 3841708 (1974-10-01), Kniff et al.
patent: 4014395 (1977-03-01), Pearson
patent: 4337980 (1982-07-01), Krekeler
patent: 4478299 (1984-10-01), Dorosz
patent: 4700790 (1987-10-01), Shirley

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