METHOD AND APPARATUS FOR FORMING ENVELOPE BLANKS FROM A WEB

A plurality of rolls of web material are positioned on tandem supports in spaced relation to a die unit having a horizontally reciprocable punch. The webs are unwound from the rolls with the webs in overlying relation and are fed to a web feeder unit positioned above the die unit. The web feeder uni...

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Bibliographische Detailangaben
1. Verfasser:	OGGOIAN W,US
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	A plurality of rolls of web material are positioned on tandem supports in spaced relation to a die unit having a horizontally reciprocable punch. The webs are unwound from the rolls with the webs in overlying relation and are fed to a web feeder unit positioned above the die unit. The web feeder unit feeds the plurality of webs in overlying relation along a generally vertical path into the die unit where the webs are momentarily stopped as the movable punch cuts envelope blanks from the web. The envelope blanks are ejected from the die unit into a receiver unit positioned in substantially the same plane as the die unit where the formed envelope blanks are stacked. The remaining portions of the webs are discharged through a discharge device positioned below the die unit.