Winding – tensioning – or guiding – Bobbin or spool – Double-headed spool
Patent
1989-10-20
1991-02-12
Gilreath, Stanley N.
Winding, tensioning, or guiding
Bobbin or spool
Double-headed spool
289 181, 452198, B65H 7514
Patent
active
049917927
ABSTRACT:
A reel for twine for a machine for tying knots, the reel having two heads and a hub that interconnects and is rotatable relative to the heads, and a plurality of rolling elements spaced about the periphery of each head and protruding outwardly from each head and adapted to roll on the interior of a guide housing of a machine for tying knots. Two adjacent rolling elements contact and roll about the interior of the casing, and this prevents the bodily rotation of the reel that would occur if the heads were round and free to roll.
REFERENCES:
patent: 19909 (1890-06-01), Brockway
patent: 1260512 (1918-03-01), Chase
patent: 1634899 (1927-07-01), Fredrick
patent: 1696256 (1928-12-01), Rock
patent: 4401329 (1983-08-01), Pedroia
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