Apparatus for guiding a web leader in a paper machine

Details Apparatus for guiding a web leader in a paper machine Apparatus for guiding a web leader in a paper machine

1985-04-26

1987-08-04

Alvo, Steve

Paper making and fiber liberation

Apparatus

Automatic control

34120, 162193, 162286, 226 97, D21F 142, D21F 704

Patent

active

046844430

ABSTRACT:
An improvement in apparatus for guiding a web leader from a press section to a drying section of a paper machine, the apparatus including flexible guide ropes forming a gap into which the leader is shifted, an initial air blow device for guiding the leader towards the drying wire of the drying section, a first blow member for detaching the leader from the drying wire and a second blow member for applying transversely directed air jets onto the leader to shift it into the gap formed by the guide ropes. According to the improvement, the second air blow device includes a blow member which is mounted for pivotal movement between a non-operating lateral position outside of the edge of the drying wire and an operative position in opposed relationship thereto. One or more nozzle openings are formed in the blow member of the second air blow device for applying the transversely directed air jets onto the web leader when the blow member is in the operating position to shift the web leader into the gap formed by the guide ropes. The improvement of the invention is lightweight, requires little space and can advantageously be provided with automatic controls so that the web leader can be guided from the press section to the drying section in a completely automatic operation.

REFERENCES:
patent: 1279756 (1918-09-01), Pope
patent: 1688267 (1928-10-01), Cram
patent: 4501643 (1985-02-01), Kiuru
patent: 4543160 (1985-09-01), Kertulla et al.
patent: 4551203 (1985-11-01), Eskelinen

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