US PATENT SUBCLASS 19 / 251
.~.~.~.~ By roll

Current as of: June, 1999
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19 /   HD   TEXTILES: FIBER PREPARATION

65 R  DF  WORKING {8}
236  DF  .~ Drafting {7}
244  DF  .~.~ Apron type {8}
250  DF  .~.~.~ Tensioning {1}
251.~.~.~.~ By roll

DEFINITION

Classification: 19/251

(under subclass 250) Method or apparatus wherein the tensioning or stretching of the endless belt is accomplished by cylindrical weighted means about whose axis the endless belt is trained.