GB1307330A - Sheet separating device - Google Patents

Abstract

1307330 Delivering sheets PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 10 Feb 1972 6370/72 Heading B8R A device for separating from each other two superposed films comprises entry and exit pairs 1a, 1b and 3a, 3b of oppositely rotating rollers, Fig. 1, and between them a pair of separating rollers 2a, 2b rotating in the same direction, the upper roller being supported on pivot arms 7 so as normally to be spaced from the lower roller by a gap greater than the thickness of the two sheets. When the leading edges of the sheets have passed the gap and actuate a feeler switch S1, Fig. 3a, an electromagnet is deenergized and allows the roller 2a to force down the levers 7 by spring force or under gravity and contact the top sheet, thus feeding it rearwardly to form a bulge, Fig. 3c, the end of the sheet eventually being drawn over the roller 2a to a separate guide path. When the sheets engage a second switch S2, the magnet is energized to raise the roller. In another form, a cam disc rotates in synchronism with the feed, and is shaped so as to actuate a switch and de-energize and energize the magnet at the desired times. Alternatively, the cam may act directly on the arms 7.