Positive control lower folder

Details Positive control lower folder Positive control lower folder

2005-06-28

2005-06-28

Walsh, Donald P. (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S302000, C271S310000, C271S279000, C271S283000

Reexamination Certificate

active

06910690

ABSTRACT:
A positive control signature transferring assembly, for use in a lower folder, transports and diverts signatures under positive control. The assembly has a first positive control deceleration device having grippers for transporting some of the signatures of a stream of signatures to a first delivery stream. The assembly has a gripper cylinder containing a plurality of grippers for gripping a leading edge and a trailing edge of each of the remaining signatures in the signature stream for transporting the signatures on the gripper cylinder. A second positive control deceleration device has grippers for transporting the remaining signatures released by the gripper cylinder to a second delivery stream. In this manner, the signatures are positively controlled at all times and alignment and fixed pitch errors are significantly reduced.

REFERENCES:
patent: 3841625 (1974-10-01), Carricato
patent: 4378734 (1983-04-01), Wirz
patent: 4534552 (1985-08-01), Rahe
patent: 5452886 (1995-09-01), Cote et al.
patent: 5560599 (1996-10-01), Curley et al.
patent: 5727783 (1998-03-01), Tassinari
patent: 5740900 (1998-04-01), Cote et al.
patent: 5927712 (1999-07-01), Curley et al.
patent: 05 147 822 (1993-06-01), None

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