US PATENT SUBCLASS 451 / 243
.~.~.~.~ With "dead" center

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
178  DF  .~.~ Rotary cylinder {11}
242  DF  .~.~.~ Work rotating {5}
243.~.~.~.~ With "dead" center

DEFINITION

Classification: 451/243

With "dead" center:

(under subclass 242) Abrading machine in which the workpiece is slidingly supported for rotation by a nonrotating member at surface of the workpiece that coincides with the axis about which the workpiece rotates during abrading.

(1) Note. Opposed "dead" centers are included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

397+, for a work holder for an abrading machine having centers which support the workpiece for rotation.