US PATENT SUBCLASS 269 / 191
.~.~.~.~.~ Roll or ball gripping element

Current as of: June, 1999
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269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
165  DF  .~ Means for direct manual adjustment of jaw(s) {5}
188  DF  .~.~ With common means to both lock and actuate jaw(s) {4}
189  DF  .~.~.~ Screw-nut type {2}
190  DF  .~.~.~.~ With wedge means in the lock mechanism {2}
191.~.~.~.~.~ Roll or ball gripping element

DEFINITION

Classification: 269/191

(under subclass 190) Device wherein the block moves cylindrical or spherical means to effect frictional engagement for locking the adjustment.

(1) Note. In the illustration below (as in the illustration above) screw rotation moves block 4, here block 4 moves a roller or ball 2 to immobilize member 5. [figure]