Flexible bristle

Details Flexible bristle Flexible bristle

1977-04-27

1979-03-20

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

15 55, 15183, 57221, 428383, A46D 104

Patent

active

041446100

ABSTRACT:
A bristle for mounting on a rotatable drum or shaft to form a sweeping device for use in maintaining railroad rails, ties, ballast and way. The bristle contains a length of wire rope with a lubricant within the interstices of the wire and strands of the rope. A low density polyethylene jacket is high compression extruded onto the exterior and into the intersticial area of the length of wire rope thereby containing and permanently sealing the lubricant within the wire rope, increasing the longitudinal stiffness of the rope, and effecting a mechanical interlock between the wire rope and the polyethylene jacket which both secures the strands of the rope together and secures the polyethylene jacket to the rope. A polyurethane jacket is extruded onto the exterior of the polyethylene jacket thereby stiffening the wire rope and polyethylene jacket, protecting the same from abrasion and cutting, and preventing splaying, unraveling or flaring of the bristle.

REFERENCES:
patent: 2561487 (1951-07-01), Bailhe
patent: 2727263 (1955-12-01), Dangremond et al.
patent: 3646748 (1972-03-01), Lang
patent: 3649984 (1972-03-01), Kershaw et al.
patent: 3705489 (1972-12-01), Smollinger
patent: 3800522 (1974-04-01), Hughes

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