US PATENT SUBCLASS 451 / 286
.~.~.~.~.~ By means loosely confining work

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
259  DF  .~.~ Rotary disk {10}
283  DF  .~.~.~ Work rotating {2}
285  DF  .~.~.~.~ Rotary work holder {6}
286.~.~.~.~.~ By means loosely confining work

DEFINITION

Classification: 451/286

By means loosely confining work:

(under subclass 285) Abrading machine wherein the workpiece is bounded by the work holder which is dimensioned so that the workpiece contained therein may move within the holder during the abrading operation.

(1) Note. One type of work holder found herein is a work holding ring which loosely circumscribes the workpiece. Such a ring may be provided with a pressure plate which urges the work into contact with a grinding tool.