Sheet stacking machine

Details Sheet stacking machine Sheet stacking machine

1988-07-21

1989-08-29

Rolla, Joseph J.

Sheet feeding or delivering

Delivering

By endless conveyor

271 7, 271 69, 198833, B65H 4304

Patent

active

048610143

ABSTRACT:
In handling flat sheets as for example from a sheet processing machine to a downstacker a plurality of narrow parallel belt conveyors are necessarily employed. Non-uniformity in manufacture of the belts and different slippage on the pulleys causes unequal speed of travel of the individual belts resulting in improper and unequal handling. Utilizing a lower set of conveyor driving belts on which are super-imposed overlapping driven carrier belts overcomes this problem by producing uniform speed of travel of the belts.

REFERENCES:
patent: 3191927 (1965-06-01), Hartbauer
patent: 3580402 (1971-05-01), Tolf
patent: 3759402 (1973-09-01), Hitch
patent: 3860232 (1971-11-01), Martin
patent: 3892168 (1975-07-01), Grobman
patent: 3905595 (1975-09-01), Adams
patent: 4040618 (1977-08-01), Vermes
patent: 4111411 (1978-09-01), Graves
patent: 4188861 (1980-02-01), Kroeze
patent: 4200276 (1980-04-01), Marschke
patent: 4268028 (1981-05-01), Martin
IBM Technical Disclosure Bulletin, vol. 15, No. 2, Jul. 1972, "Moving Backup Belts for Semiautomatic Document Feed" by J. A. Craft et al., pp. 389 and 390.

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