Title: Apparatus for the zig-zag folding of a web of material

Abstract: Apparatus and method of producing a Leporello folding of a web of material including a pair of rollers driven by unidirectional drive devices and continually revolved in a same direction and directing the web of material upwardly between the nip of the rollers, a pair of belt conveyors receiving the web of material, the conveyor belts travelling in the same direction, and reversing frequently to carry the web first in one horizontal direction and then in the opposite horizontal direction, a receptacle receiving the web folded on the conveyor belts and containing a weight for maintaining pressure between the web and the conveyors and a drive apparatus continually driving the rollers slightly slower than the conveyor belts.

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Inventors: Melzer, Roland (Schwelm, DT)

Application Number: 541927
Filing Date: 1975-01-17
Publication_date: 1976-08-03
Assignee: R. Melzer oHG Machinenbau und Metallverarbeitung (Schwelm, DT)
Primary Class(es): 270/30.04 226/118.1, 493/410
Other Classes:
US Patent Ref:

2902888	Sep, 1959	Powischill	270/31.
3627306	Dec, 1971	Affupper	270/79.
3697062	Oct, 1972	Mones	270/30.
3871763	Mar, 1975	Schrempp	270/61.

Other Refs: 181,590

Sep, 1954	OE

Primary Examiner: Eickholt, E. H.
Assistant Examiner: Heinz, A.
Attorney: Haller; James R., Palmatier; H. Dale