Device for rotating a body

Details Device for rotating a body Device for rotating a body

1979-10-19

1982-08-10

Pate, III, William F.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter shiftable horizontally

414688, E21C 2508

Patent

active

043435157

ABSTRACT:
The invention relates to a device for rotating a body, such as the boom of a roadheader. The device comprises a pivotally mounted yoke having in it a slot in which is slidably mounted a member which is rotatably and eccentrically attached to the body, and a pair of opposed pivotally mounted rams each of which is rotatably attached to the yoke, the rams being operated out of phase such that they cause the yoke to pivot about its mounting, the pivotal movement being translated into a rotation of the body by movement of the member in the slot. Preferably the member is moved to and fro in the slot by means of a third ram mounted on the yoke.

REFERENCES:
patent: 3498675 (1970-03-01), Kampf-Emden et al.
patent: 3682253 (1972-08-01), McIntosh et al.
patent: 3771677 (1973-11-01), Pilch
patent: 3966256 (1976-06-01), Fikse
patent: 4056284 (1977-11-01), Stoltefuss et al.

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