Apparatus for feeding sheets of paper from a magazine to a print

Details Apparatus for feeding sheets of paper from a magazine to a print Apparatus for feeding sheets of paper from a magazine to a print

1979-04-11

1981-02-03

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Multiple supplies

271 10, 271116, 271242, B65H 526

Patent

active

042484154

ABSTRACT:
An apparatus for feeding single sheets of paper to a printing office machine, for example a typewriter, bookkeeping machine, etc. The paper is held in a stack within one or more magazines and the top sheet of the stack is engaged by a separating roller which is driven by a gear belt from the printing platen or another rotating part of the associated office machine. In order to insure the exact positioning at the entrance of the printing platen slot of the sheets of paper delivered by the separating roller, the apparatus provides that when the separating roller transports a sheet of paper forward to the printing platen, the printing platen is rotating backward at that time, preventing entry of the new sheet but insuring its position while the continued motion of the separating roller causes the new sheet to bulge. Thereafter, the direction of motion of the printing platen is reversed, causing the reliable advance of the paper into the office machine. During this time, an overrunning clutch prevents reverse motion of the separating roller. In order to provide for the limited reversal of motion of the printing platen during the printing process, a lost motion mechanism in the drive of the separating roller permits limited paper reversal. A number of embodiments of the drive mechanism for the separating roller is presented.

REFERENCES:
patent: 2366206 (1945-01-01), Metzner
patent: 3776545 (1973-12-01), White
patent: 4089402 (1978-05-01), Hyland

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