Sheet feeding or delivering – Feeding – Separators
Patent
1996-10-07
1999-01-26
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Separators
271 11, B65H 308
Patent
active
058630376
ABSTRACT:
A sheet supply device of a sheet-fed machine, in particular a printing press, includes a sheet guide element that is adjustable lengthwise and crosswise to a sheet format. Strips that guide the top leading region of a sheet rising on an air cushion extend above a sheet stack downward from a suction head at an incline relative to the surroundings toward a transfer point to the sheet-fed machine. The bands are rolled up onto winding rollers that are acted upon by a restoring force, so that the bands are kept wound or are always kept under tension. In another version, the bands are constructed as elastic bands. At sides of the transfer point, outer bands are mounted on a lateral stack stop and inner bands are mounted on mounts which are adjustable crosswise of the sheets. When the suction head and the lateral stack stops are adjusted, the bands shorten or lengthen in accordance with the adjustment, so that for each format the sheet is guided over its full width.
REFERENCES:
patent: 2156139 (1939-04-01), Backhouse
patent: 3482833 (1969-12-01), Schleiden
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Skaggs H. Grant
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