Textiles: cloth finishing – Expanding device for textile webs – Spreader
Patent
1978-03-28
1983-01-18
Mackey, Robert
Textiles: cloth finishing
Expanding device for textile webs
Spreader
2642902, D06C 306
Patent
active
043685650
ABSTRACT:
There is disclosed a novel groove roller and roller assembly comprised of two of such grooved rollers wherein the grooved roller is comprised of a plurality of discs having varying diameters and positioned on a shaft thereby forming a grooved roller of self-centering groove components. In a preferred embodiment, discs of one diameter and discs of another diameter are alternately mounted on the shaft. Also disclosed is a roller assembly formed of two of such grooved rollers in interdigitating or intermeshing relationship for laterally stretching incremental portions of an orientable thermoplastic substrate by introducing such substrate into a nip formed by such interdigitating grooved rollers whereby the velocity of introduction thereof is controlled to substantially the rotational velocity of such grooved rollers.
REFERENCES:
patent: 392484 (1888-11-01), Zdziarski
patent: 1732968 (1929-10-01), Dwight
patent: 1939246 (1933-12-01), Antonsen
patent: 2613571 (1952-10-01), Herman
patent: 3466358 (1969-09-01), Muller
patent: 3528145 (1970-09-01), Troope et al.
patent: 3795031 (1974-03-01), Fleissner
patent: 3849526 (1974-11-01), Muller et al.
Biax-Fiberfilm Corporation
Mackey Robert
Marn Louis E.
Olstein Elliot M.
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