Sheet sensing device in a rotary printing press

Details Sheet sensing device in a rotary printing press Sheet sensing device in a rotary printing press

1977-05-11

1978-11-28

Schacher, Richard A.

Sheet feeding or delivering

Feeding

With means to interrupt feeding

101409, 271 82, 271196, 271261, 271276, 271277, B65H 712

Patent

active

041272650

ABSTRACT:
Sheet sensing device in a rotary printing press having a sheet transferring drum provided at respective regions thereof with gripping means for gripping the leading and trailing edges of a sheet being transferred, includes sensing nozzles disposed in the region of the gripping means for gripping the trailing edge of a sheet, a line system connecting the sensing nozzles to a pneumatic pressure-generating source, and pressure monitoring means connected in the line system between the sensing nozzles and the pneumatic pressure-generating source.

REFERENCES:
patent: 1790465 (1931-01-01), Dudley
patent: 3618935 (1971-11-01), Howatt
patent: 4024814 (1977-05-01), Becker
patent: 4029009 (1977-06-01), Kuhn

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