Web interfolding machine
First Claim
1. A FOLDING DEVICE FOR FOLDING A WEB OF SHEET MATERIAL WHICH IS DRAWN OVER THE DEVICE AND EMERGES FROM THE DEVICE IN A LONGITUDINALLY FOLDED CONDITION IN A PREDETERMINED PATH, COMPRISING A FIRST FOLDING EDGE EXTENDING FROM A POINT AT AN EDGE OF THE PATH TRANSVERSELY OF THE PATH AND TO THE OTHER EDGE OF THE PATH AND HALF THE WIDTH (W) OF THE WEB, A SECOND FOLDING EDGE EXTENDING FROM SAID POINT OUTWARDLY WITH RESPECT TO THE PATH AND AT AN OBTUSE ANGLE (90*+M) WITH RESPECT TO SAID FIRST FOLDING EDGE AND AT AN OBTUSE ANGLE (180*-L) WITH RESPECT TO THE DIRECTION OF MOVEMENT OF SAID WEB IN SAID PATH, AND A THIRD FOLDING EDGE EXTENDING FROM SAID POINT OBLIQUELY OF SAID PATH TO THE OTHER EDGE OF THE PATH TO HAVE AN ACUTE ANGLE (N) WITH RESPECT TO THE OTHER EDGE OF THE PATH, WHEREBY A LONGITUDINAL FOLD OF THE WEB MAY BE DRAWN OVER SAID FIRST FOLDING EDGE IN SAID PATH AND ANOTHER FOLD OF THE WEB MAY BE DRAWN OVER SAID SECOND AND THIRD FOLDING EDGES TO BE THEREBY FOLDED OVER SAID FIRST NAMED FOLD TO PROVIDE A FOLDED WEB, WHEREIN THE SIZES OF THE ANGLES L, N AND M ARE SUBSTANTIALLY AS FOLLOWS:
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1 Claim
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1. A FOLDING DEVICE FOR FOLDING A WEB OF SHEET MATERIAL WHICH IS DRAWN OVER THE DEVICE AND EMERGES FROM THE DEVICE IN A LONGITUDINALLY FOLDED CONDITION IN A PREDETERMINED PATH, COMPRISING A FIRST FOLDING EDGE EXTENDING FROM A POINT AT AN EDGE OF THE PATH TRANSVERSELY OF THE PATH AND TO THE OTHER EDGE OF THE PATH AND HALF THE WIDTH (W) OF THE WEB, A SECOND FOLDING EDGE EXTENDING FROM SAID POINT OUTWARDLY WITH RESPECT TO THE PATH AND AT AN OBTUSE ANGLE (90*+M) WITH RESPECT TO SAID FIRST FOLDING EDGE AND AT AN OBTUSE ANGLE (180*-L) WITH RESPECT TO THE DIRECTION OF MOVEMENT OF SAID WEB IN SAID PATH, AND A THIRD FOLDING EDGE EXTENDING FROM SAID POINT OBLIQUELY OF SAID PATH TO THE OTHER EDGE OF THE PATH TO HAVE AN ACUTE ANGLE (N) WITH RESPECT TO THE OTHER EDGE OF THE PATH, WHEREBY A LONGITUDINAL FOLD OF THE WEB MAY BE DRAWN OVER SAID FIRST FOLDING EDGE IN SAID PATH AND ANOTHER FOLD OF THE WEB MAY BE DRAWN OVER SAID SECOND AND THIRD FOLDING EDGES TO BE THEREBY FOLDED OVER SAID FIRST NAMED FOLD TO PROVIDE A FOLDED WEB, WHEREIN THE SIZES OF THE ANGLES L, N AND M ARE SUBSTANTIALLY AS FOLLOWS:
Specification
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Current AssigneeCharles J. Greiner, Iten Thomas P Van
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Original AssigneeCharles J. Greiner, Iten Thomas P Van
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InventorsGreiner, Charles J., ITEN THOMAS P VAN
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Application NumberUS04/371,244Time in Patent Office925 DaysField of SearchUS Class Current270/40CPC Class CodesA47K 2010/428 Details of the folds or int...B65H 45/08 longitudinallyB65H 45/24 Interfolding sheets, e.g. c...
