GB1110723A - Improvements in or relating to the longitudinal folding and interleaving of web material - Google Patents

Abstract

1,110,723. Sheet folding and interleaving apparatus. R. COUZENS and M. M. YOUNG. 20 May, 1965 [25 May, 1964; 14 Dec., 1964], No. 21411/65. Heading B6H. An apparatus for folding and interleaving web materials which are then cut into sheet lengths for boxing comprises a plurality of web folding and interleaving stations arranged in series adjacent one another and including web roll suspension means 28 . . . 34 . . . Fig. 1 (not shown), from which the respective webs 28<SP>1</SP> . . . 34<SP>1</SP> . . . are unwound and passed over former plates and rollers 40, 68, Fig. 4, to produce a first transverse fold in the webs the folded edges 46, 74 being disposed on opposite sides in respective adjacent stations. The folded webs 32<SP>1</SP>, 34<SP>1</SP> having folded flaps 44, 70, offset with respect to the path of advance and, on opposite sides thereof, are passed over respective rollers 50, 52 and 76, 78, which are staggered axially with respect to each other, and under plates 58, 82 provided with inclined edges such as at 62 the edges co-operating with turning bars 64, 86 which turn the free edges of the webs 32<SP>1</SP>, 34<SP>1</SP> upwardly through 90 degrees. The advancing edges are then engaged by plough plates, such as 88, which turn the free edges on to a superposed prefolded web, to interleave the subjacent web with the superposed one. A plurality of such interleaved webs is adanced by a conveyer 56 over guide roller 20, Fig. 1 (not shown), to a further guide roller 24 at which a further plurality of similarly interleaved webs is juxtaposed and the combined continuous stack is severed into sheet lengths by a cutting device 26 ready for boxing. In the case of 400 interleaved sheets 400 stations are used, 200 in each parallel manufacturing line 12. 14.