Metallic card clothing
AssigneesNakagawa Seisakusho Mfg. Co., Ltd., Toyo Special Metallic Industry Co., Ltd.
InventorIwao Wada
Life of this patent
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Abstract
A metallic card clothing for use in a carding machine is produced by digging up at fixed intervals a plurality of regularly spaced projected ridges or one projected ridge formed on one flat surface of a steel strip thereby giving rise to a plurality of serrated component elements having a triangular shape in a plane as viewed in the longitudinal direction of the projected ridges and a lateral shape resembling the teeth of a saw. Owing to the specific shape of the needles formed in the component elements, this metallic card clothing excels in carding action and resistance to wear.
Claims3
A metallic card clothing comprising a base portion and a plurality of upwardly extending needles regularly spaced, one after the other in the direction of needle advance, each of said needles comprising an upwardly projecting ridge having side walls sloping upwardly and inwardly from said base portion and merging at the outward peak of said ridge and forming a ridge line extending longitudinally in the direction of needle advance, said upwardly projecting ridge and said outward peak ridge line being raised at equal intervals longitudinal of said ridge line and the direction of movement of said needle advance and forming serrated elements extending upwardly from said ridge line, each of said serrated elements having a triangular shaped acting surface with a flat face forwardly in the direction of needle advance and forming an acute angle acting surface relative to said base portion and triangular shaped rear surfaces extending upwardly from said ridge, said triangular shaped acting surface and said triangular shaped rear surfaces on each of said serrated elements merging to form a point at the outer end of said each serrated element.
Dependencies are inferred from the claim text.