EXTRACTOR FOR SHEET MATERIAL

The leaders of successive topmost sheets of a stack of sheets are lifted by a set of aligned suction cups which move each leader into a horizontal plane including the nip of two advancing rolls. The suction cups insert the leading edge of each leader into the nip and continue to adhere to the leader...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YURUGEN MIYURAA, BUERUNAA SHIYUTAARU
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY CONVEYING ELECTROGRAPHY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY PACKING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	The leaders of successive topmost sheets of a stack of sheets are lifted by a set of aligned suction cups which move each leader into a horizontal plane including the nip of two advancing rolls. The suction cups insert the leading edge of each leader into the nip and continue to adhere to the leader while the latter is advanced by the rolls so that the leader pulls the suction cups against the opposition of a weak spring tending to move the suction cups and their mobile support to a starting position. The drive for the advancing rolls is thereupon arrested for an interval of time which suffices to ensure the collapse of suction in the cups by arresting the suction pump and by simultaneously opening a valve which connects the interior of each cup with the atmosphere.