Feeding of offset, collated forms

Severing by tearing or breaking – Methods – Transversely of continuously fed work

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225100, 226 1, 226102, 226171, 226182, 226193, B26F 302, B65H 2002

Patent

active

055537634

ABSTRACT:
During the feeding of offset continuous collated business form webs to the slow rollers of a burster, it is important to insure that the top web properly passes through the slow roll section. By providing a number of puller wheels having aluminum cores and sawtooth rubber coverings atop conveyor belts passing over crowned pulleys which are oversped relative to the web speed, proper feed to the burster is provided. Form deflecting fingers extending from the puller wheels to the burster also help. In order to prevent the conveyor belts from running off the crowned pulleys an aligner is provided which has a number of vertical dowel pins with plastic sleeves covering and rotatable with respect to the dowel pins, disposed on each side of a conveyor belt associated with a crowned pulley and puller wheel. The aligner is provided immediately upstream of a rubber covered drive roll for the conveyor belts.

REFERENCES:
patent: 4069957 (1978-01-01), Moffitt
patent: 4118022 (1978-10-01), Rayfield et al.
patent: 4261497 (1981-04-01), Roetter et al.
patent: 4851075 (1989-07-01), Parker
patent: 4889271 (1989-12-01), Kurokawa
patent: 5060838 (1991-10-01), Gergely et al.

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