Wire spool with end flange having a wire protecting groove

Details Wire spool with end flange having a wire protecting groove Wire spool with end flange having a wire protecting groove

1985-07-15

1986-07-29

Watkins, Donald

Winding, tensioning, or guiding

Bobbin or spool

Double-headed spool

2421251, B65H 7528, B65H 7518

Patent

active

046027513

ABSTRACT:
An improved spool for wire having a barrel and frusto-conical end flanges, at least one of which is provided on its inner face with a wire protecting groove extending from the smaller diameter inner peripheral end of the one end flange to wire anchoring means at the larger diameter peripheral portion of the end flange. At the inner peripheral end of the end flange, the groove is substantially tangent with the adjacent end of the barrel and thereafter follows such a curved path to its other end which is substantially the shortest course of travel along the inner face of the end flange.

REFERENCES:
patent: 629115 (1899-07-01), Turney
patent: 1525503 (1927-04-01), Schooley
patent: 2298357 (1942-10-01), Elvin et al.
patent: 3176932 (1965-04-01), Kovaleski
patent: 3368765 (1968-02-01), O'Grady
patent: 3717315 (1973-02-01), Kovaleski
patent: 4140289 (1979-02-01), Kovaleski
patent: 4253569 (1981-03-01), O'Connor et al.
patent: 4387863 (1983-06-01), Edmonston et al.

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