B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/39
B65H 29/00 (2006.01) B65H 29/66 (2006.01) B65H 29/68 (2006.01)
Patent
CA 1175452
ABSTRACT OF THE DISCLOSURE Apparatus for the shingling of cut sheets of paper as they pass between conveyance on a high-speed tape conveyor and and a low-speed tape conveyor is provided by means comprising a two-stage slowdown arrangement. At the first stage, a slowdown mechanism, comprising two rolls arranged respectively above and below each sheet passing through a drop-off area from the high- speed conveyor to the low-speed conveyor, serves to engage the tail portion of the sheet in a nip such that the sheet is slowed down to a speed approximately 30 to 40% of the speed of the high-speed conveyor. In this manner, the lead edge of a next succeeding sheet overlaps with the trailing edge of the nipped sheet in a drop-off area from the high-speed tape conveyor. Downstream of the slowdown rolls is a stop roll which serves to reduce the speed of the immediately preceding sheet to the speed of the low-speed tape conveyor, which is still slower than the speed of the slowdown rolls such that the sheet passing through the nip of the slow- down rolls further overlaps with the immediately preceding sheet. The possibility of lead edge damage to the sheets engaging with a stop roll for shingling is effectively eliminated.
397675
Fitzpatrick Donald C.
Frye Kenneth G.
Karis Arthur T.
Beloit Corporation
Ridout & Maybee Llp
LandOfFree
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