Apparatus for manufacture of end brush

Details Apparatus for manufacture of end brush Apparatus for manufacture of end brush

1988-12-12

1989-12-05

Eley, Timothy V.

Brush, broom, and mop making

Brush-making machines

Tuft feeding and setting

300 5, 300 7, 300 8, 300 10, 300 21, A46D 304

Patent

active

048848492

ABSTRACT:
This invention relates to a new and useful apparatus and method of manufacture of an end brush, comprised of thermoplastic bristles. The apparatus comprises a fiber feed guide eye for fiber skein, a fiber bundle adjustable aperture plate, electric induction heater coil surrounding a tapered splined male pin and a source of cold air blast, and the tapered splined male pin activated by a compression spring to force the heated tapered splined pin into the fiber bundle held in the adjustable aperture plate. The movement of the tapered splined male pin is limited by stops. The subsequent cooling of the tapered splined pin withdraws the fused end brush from the open adjustable aperture plate and the bristles of the end brush are severed from the skein of fibers, and the end brush attached to the tapered splined pin is subsequently knocked off of the pin by means of a hammer.

REFERENCES:
patent: 2421647 (1947-06-01), Peterson
patent: 3009184 (1961-11-01), Dolan
patent: 3562833 (1971-02-01), Charvat
patent: 3585671 (1971-06-01), Schofield
patent: 3641611 (1972-02-01), Schofield
patent: 4109965 (1978-08-01), Lewis, Jr.
patent: 4408367 (1983-10-01), Pusterhofer
patent: 4733917 (1988-03-01), Boucherie
patent: 4749233 (1988-06-01), Weihrauch
patent: 4795218 (1989-01-01), Seidler

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