A - Human Necessities – 46 – B
Patent
A - Human Necessities
46
B
300/10, 15/115,
A46B 3/16 (2006.01) A46B 3/04 (2006.01) A46B 9/02 (2006.01) A46D 1/00 (2006.01) A46D 1/08 (2006.01) A46D 3/00 (2006.01) B24D 13/14 (2006.01)
Patent
CA 1118557
ABRASIVE BRUSHES AND METHODS OF MAKING SAME Abstract of the disclosure An elongate, abrasive strip element is produced by winding an abrasive monofilamenr, of bundles thereof, back and forth in a zigzag pattern from side to side of the strip, and chain stitching together adjacent transverse sections of the mono- filament, or bundles thereof. The resultant strip is easily rolled or coiled about a transverse axis, but resists bending about a longitudinal axis, whereby it can be manipulated readily to form brush races of various configurations. The warp yarns which are used to produce the chain stiches may be produced on a knitting machine which can be cammed to vary the number of stitches between adjacent transverse strands of the monofilament wefts, thereby selectively to vary the density of the brush races produced from the strips, and asso to vary the configuration of the abrasive strip itself (i.e. to produce it in linear form, circular, truncated-conical, etc.). The linear form of the strip may be severed medially of its edges to form two, identical bristle strips, each of which may be wound in convolute form, for example, and may be embedded at one side (e.g. by molding) in an elastomeric base to form a disc type brush. Other brush con- figurations are also disclosed.
308311
Kirby Eades Gale Baker
Schlegel Corporation
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