Paper sheet feeders having multiple storage magazines

Details Paper sheet feeders having multiple storage magazines Paper sheet feeders having multiple storage magazines

1973-10-19

1976-03-30

Blunk, Evon C.

Sheet feeding or delivering

Feeding

Multiple supplies

271117, B65H 128, B65H 306

Patent

active

039470156

ABSTRACT:
A cut-sheet feeder, for delivering various sizes of sensitized paper sheets to the feed table of a printing machine, has nested adjustable magazines for storing quantities of sheets of several predetermined sizes, and the magazines extend at an angle beneath the table and have curved discharge throats for projecting sheets, one at a time, above and onto the table; said throats serving also as light-shields or hoods. Layers of frictional material are positioned to hinder the discharge of sheets from the magazines, excepting for the foremost sheet of each stack, which is normally in contact with a feed roller, urged against it by a spring, and the feed rollers are individually driven, each by a separate motor, and coordinated by an electrical control system; the feed-roll drive including an over-running clutch so that the operator can pull a sheet out, if desired, beyond the point to which it may be fed by the feed-roll when actuated by the timer-controlled motor. The apparatus also incorporates such features as: pivoting of the discharge throats for ready loading of the magazines; adjustability of the magazines, not only to receive sheets of various sizes, but also to provide for proper storage and feed of oblong sheets with either of two differing edges foremost; and means for adjusting the sheet feeder to adapt it to different printers.

REFERENCES:
patent: 1443698 (1923-01-01), Avery
patent: 2679801 (1954-06-01), Ford et al.
patent: 3110490 (1963-11-01), Limberger
patent: 3208746 (1965-09-01), Mestre
patent: 3323790 (1967-06-01), Pankow

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