THREADING A PAPER WEB IN A WEB DRYER

摘要

This disclosure pertains to a multipass web-treating apparatus particularly adapted for drying a paper web. The web is transferred between passes or zones by turning rolls. A threading device associated with the dryer utilizes turning sheaves which are associated with each turning roll over which at least one threading rope or tape travels. A clutch is arranged to operatively associate each turning roll and turning sheave to transmit rotary motion from the sheave to the roll such that the peripheral speed of the roll is equal to or greater than the linear speed of the threading rope or tape. An attachment device is fixed to the tape to hook or unhook the end of a paper web to be threaded through the dryer.