(under subclass 219) Method or apparatus including plural thread finishing treatments which differ in kind, effect or purpose.
(1) Note. Examples of the types of different thread finishing operations to be found herein are stretching and texturing, texturing and opening or spreading of tow, etc.
(2) Note. Where an additional operation merely perfects or enhances a basic thread finishing operation, e.g., heating
thread to improve texturing, either to facilitate texturing, to retain the texture, or to fully develop the texture, the patent is placed on the basis of the basic finishing operation.
(3) Note. Coating or dyeing is considered as "conditioning" and such an operation will be found with the specific type of surface modification of the thread.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223+, for combined diverse thread clearing operations. 258, for combined diverse thread texturing operations.
