Winding – tensioning – or guiding – Unwinding – With particular guide or guard
Patent
1996-11-13
1998-04-14
Calvert, John J.
Winding, tensioning, or guiding
Unwinding
With particular guide or guard
2425951, 66125R, B65H 5718
Patent
active
057382964
ABSTRACT:
A spool protector with a vertically-extendable spool protector is provided. The vertically-extendable spool protector is extendable vertically to protect spools of various sizes from being flipped away from the rollers that support the spools. The spool protector includes a protection beam and a releasable fastening means for releasably securing the protection beam in desired positions. The releasable fastening means can be implemented in two embodiment. The first embodiment is a supportive piece having a pair of angled portions each forming a coupling hole therein and the second embodiment is composed of a securing frame and a screw mounted on said securing frame. When said releasable fastening means release the protection beam, the technician can freely adjust for a suitable position for the protection beam so as to protect spools of various sizes.
REFERENCES:
patent: 912170 (1909-02-01), Rittersbacher
patent: 1505220 (1924-08-01), Shay
patent: 1907841 (1933-05-01), Lewis
patent: 2134656 (1938-10-01), Breth
patent: 2621868 (1952-12-01), Clark et al.
patent: 2650042 (1953-08-01), Markwood
patent: 2887281 (1959-09-01), Caufield
patent: 3510033 (1970-05-01), Schramm et al.
patent: 4309120 (1982-01-01), Werthmann
Calvert John J.
Chen Jen Hui
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