Device for controlling a pile lifting device and method of opera

Details Device for controlling a pile lifting device and method of opera Device for controlling a pile lifting device and method of opera

1987-09-16

1989-05-23

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Pack holders

B65H 118

Patent

active

048323292

ABSTRACT:
Device for controlling a pile-lifting device of a sheet-processing machine has a drive for performing correction movements in order to keep the upper side of the pile within a range of heights, a device for scanning the position of an upper side of the pile so as to determine whether the upper side of the pile has reached a predetermined height or not, and a control device for controlling the correction movements in accordance with the result of the scanning of the position of the upper side of the pile, and includes device for determining a quantity dependent upon the correction movement.

REFERENCES:
patent: 2912243 (1959-11-01), Gulick
patent: 3716226 (1973-02-01), Kistner
patent: 3768806 (1973-10-01), Reehil
patent: 4310153 (1982-01-01), Kikuchi
patent: 4535463 (1985-08-01), Ito
patent: 4624454 (1986-11-01), Grutzmacher
Hall-Magnetgabelschranke Hkz-101; pp. 3-9.
Elektronische Lastrelais (ELR)--Wirkungsweise und praktischer (Brunnler) Einsatz--Siemens Components 20 (1982) vol. 3, pp. 83-87.

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