US PATENT SUBCLASS 269 / 184
.~.~.~ Interrupted thread type

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}
172  DF  .~.~ With relative axial shift of screw-nut actuating means {4}
184.~.~.~ Interrupted thread type {3}
185  DF  .~.~.~.~> Antipodal screw thread sectors
186  DF  .~.~.~.~> Rack-like nut thread sector
187  DF  .~.~.~.~> With continuous screw thread

DEFINITION

Classification: 269/184

(under subclass 172) Device including mutilated portions of one or both of the mating components, which portions, where properly aligned, permit relative axial motion without interengagement of the thread (or helix-like) elements of said mating components.

(1) Note. Generally, a partial rotation of a mating component serves to align mutilated portion, permitting an axial shift of said component (and associated jaw); and a further rotation serves to apply the actuating work gripping force.

(2) Note. See subclass 181 (2) Note for relationship to "haft-nut".