US PATENT SUBCLASS 139 / 457
.~ Circular, progressive shedding

Current as of: June, 1999
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139 /   HD   TEXTILES: WEAVING

11  DF  SPECIAL-TYPE LOOMS {9}
457.~ Circular, progressive shedding {5}
458  DF  .~.~> Longitudinal shedding
459  DF  .~.~> Shuttle
14  DF  .~.~> Open back
15  DF  .~.~> Contacting shuttle and shed control
16  DF  .~.~> Radial heddle movement

DEFINITION

Classification: 139/457

Circular, progressive shedding:

(under subclass 11) Subject matter wherein the special-type loom is one in which the warp is arranged in a circular manner and a section of the warp threads, of substantially the length of the shuttle, is moved to the open-shed condition and this open shed, in which the shuttle travels, is caused to move transversely of the warp, wherein the weft is laid in a circular course.

(1) Note. A loom of this subclass performs an operation which may be described as circular weaving with progressive shedding.