With preparation for doffing- or donning- type operation:
(under subclass 1) Subject matter including an operation which is performed prior to doffing or donning for the purpose of facilitating the removal of filled bobbins or packages and/or the replacement thereof with empty ones.
SEE OR SEARCH THIS CLASS, SUBCLASS:
131, for whorl driven receiving elements combined with yarn holding means to facilitate doffing.
360, for lifting devices for raising thread boards away from the spindle tips to facilitate doffing.
