B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 20/10 (2006.01) B65G 15/58 (2006.01) B65G 21/20 (2006.01) B65H 5/22 (2006.01) D21F 7/00 (2006.01) D21G 9/00 (2006.01)
Patent
CA 2312555
A vacuum conveyor which is suitable for guiding a running paper web, in particular a threading tail (9), comprises an air-pervious endless conveyor belt (10) being tensioned over two pulleys (11, 12). In the loop of the conveyor belt (10) is located a suction box (15) that is connected via an air flow path to a source of vacuum (18) such as to draw the web to be guided onto the conveyor belt by suction. In order to avoid a connection of a vacuum pipe to be arranged at a side wall of the suction box, the air flow path (19, 20) from the suction box (15) to the source of vacuum (18) runs through the return run of the conveyor belt (10). For this purpose, the suction box (15) has an exhaust opening (19) open towards the return run of the conveyor belt. Also, provided outside of the loop of the conveyor belt (10) is a suction nozzle (20) open to the said exhaust opening (19), a vacuum pipe (21) being connected to the suction nozzle.
Broom Allan
Kutak-Petrik George
Sim & Mcburney
Voith Sulzer Papiertechnik Patent Gmbh
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