Advancing material of indeterminate length – By orbitally traveling material-engaging surface – Including details of roll or mount
Patent
1993-10-25
1995-09-26
Stodola, Daniel P.
Advancing material of indeterminate length
By orbitally traveling material-engaging surface
Including details of roll or mount
226199, 2513352, B65H 2332
Patent
active
054528348
ABSTRACT:
A turning bar for changing the direction of a running web or ribbon of paper exiting a printing press. The turning bar is defined by an axisymmetric cylindrical wall having two half surfaces, one half surface having air blow-holes distributed therealong. The turning bar includes a device for blocking the air blow-holes which includes a plurality of flexible membranes and a corresponding plurality of maneuvering handles. The flexible membranes have the shape of an axisymmetric cylindrical sleeve and are arranged inside the turning bar and distributed one after the other over the entire length of the turning bar. The maneuvering handles are arranged on the cylindrical half-surface opposite the blow holes of the turning bar, each maneuvering handle having one end disposed inside the axisymmetric cylindrical wall of the turning bar which is securely fastened to a flexible membrane allowing each flexible membrane to occupy two positions. One position is a blocking position in which the flexible membrane covers the entire cylindrical internal surface of the turning bar in a sealed fashion so as to block all the blow holes which are in the region of the membrane. The other position is a freeing position in which the flexible membrane is retracted and flattened against the cylindrical internal half-surface opposite the half surface having the blow holes so as to free the blow holes.
REFERENCES:
patent: 2598207 (1952-05-01), Bailey et al.
patent: 3690344 (1972-09-01), Brumm
patent: 4453465 (1984-06-01), Heller et al.
Elkotbi Cherif
Mariotti Jean
Dunn Thomas E.
Heidelberger Druckmaschinen AG
Stodola Daniel P.
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