B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 18/02 (2006.01) B65H 16/02 (2006.01) B65H 18/26 (2006.01)
Patent
CA 2265141
Apparatus and process for at least one of winding and unwinding a material web. The apparatus includes a material web reel and a reel lightening device that includes a blow box and a compressed air supply coupled to the blow box. The blow box may direct the compressed air supply against a periphery of the material web reel to form a gap between the material web reel and the blow box. The apparatus also includes a regulating device coupled to the compressed air supply and adapted to control the gap formed between the material web reel and the blow box at a predefined set point. The process includes positioning the material web reel over the blow box, and blowing the compressed air upwardly toward a periphery of the material web roll, thus, forming a gap between the blow box and the periphery of the material web roll. The process also includes regulating the compressed air supply with the regulating device to maintain a predefined gap width between the blow box and the periphery of the material web roll.
Sim & Mcburney
Voith Sulzer Papiertechnik Patent Gmbh
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