Claims
- 1. Method of making a brush element, said method comprising the steps of:
- (a) forming a dead soft, cold rolled steel plate to provide a U-shaped metal channel having sidewalls extending in the same direction from a channel bottom;
- (b) folding a segment of polymer reinforced fabric having opposite terminal ends at its longitudinal center to form a temporary looped end with the folded portions of the fabric touching between the looped end and the terminal ends of the fabric;
- (c) fastening together the touching folded portion of the fabric to provide a permanent looped end and unfastened terminal ends;
- (d) adhesively bonding one terminal end of the fabric segment over each opposite sidewall of said U-shaped metal channel with the fabric adjacent the exterior of the metal channel so that the permanent loop projects from said channel bottom in an opposite direction as said sidewalls;
- (e) inserting into said U-shaped channel a plurality of filaments folded at their midportion;
- (f) locking the folded filaments into the channel by placing a core rod over the folded midportion of said folded filaments; and,
- (g) crimping the metal channel locked core rod and filament midportions inside the metal channel to provide said brush element.
- 2. Method of making a rotatable brush, said method comprising:
- (a) preparing a plurality of brush elements according to claim 1;
- (b) providing rotatable hub having a peripheral surface and opposite side edges, said hub being slotted to provide a plurality of circumferentially spaced brush fastening slots, each of said slots being open to said peripheral surface and to said side edges and being shaped to have a larger opening at said side edges than at said peripheral surface;
- (c) inserting the looped ends of said brush elements into said slots by sliding said looped end from the side edge of said slot into said opening; and
- (d) inserting an element into each of said loops of said brush elements which is of a size which prevents the withdrawal of said brush element through said peripheral surface while said hub is rotated in use.
- 3. Method of making a brush element, said method comprising the steps of:
- (a) folding a segment of polymer reinforced fabric having opposite terminal ends at its longitudinal center to form a temporary looped end with the folded portions of the fabric touching between the looped end and the terminal ends of the fabric;
- (b) fastening together the touching folded portions of the fabric to provide a permanent looped end and touching terminal ends;
- (c) assembling a stack comprised of sheets having a bundle of filaments between each of said sheets with the touching terminal ends of said fabric segment within the stack; and
- (d) mechanically fastening together the sheets, filaments and fabric ends in said stack to provide said brush element.
- 4. Method of making a rotatable brush, said method comprising:
- (a) preparing a plurality of brush elements according to claim 3;
- (b) providing rotatable hub having a peripheral surface and opposite side edges, said hub being slotted to provide a plurality of circumferentially spaced brush fastening slots, each of said slots being open to said peripheral surface and to said side edges and being shaped to have a larger opening at said side edges than at said peripheral surface;
- (c) inserting the looped ends of said brush elements into said slots by sliding said looped end from the side edge of said slot into said opening; and
- (d) inserting an element into each of said loops of said brush elements which is of a size which prevents the withdrawal of said brush element through said peripheral surface while said hub is rotated in use.
Parent Case Info
This is a continuation of application Ser. No. 07/532,356 filed May 31, 1990, (abandoned) which is a continuation of 07/307,221, filed Feb. 6, 1989 (abandoned) which is a continuation of 07/228,859, filed Aug. 4, 1988 (abandoned) which is a continuation of 07/067,711, filed June 26, 1987 (abandoned).
US Referenced Citations (14)
Foreign Referenced Citations (3)
Number |
Date |
Country |
173184 |
Mar 1915 |
CAX |
50684 |
Jan 1910 |
CHX |
2106020 |
Apr 1983 |
GBX |
Continuations (4)
|
Number |
Date |
Country |
Parent |
532356 |
May 1990 |
|
Parent |
307221 |
Feb 1989 |
|
Parent |
228859 |
Aug 1988 |
|
Parent |
67711 |
Jun 1987 |
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