Spools for yarns, threads or the like

Details Spools for yarns, threads or the like Spools for yarns, threads or the like

1985-08-22

1987-04-21

Watkins, Donald

Winding, tensioning, or guiding

Bobbin or spool

Double-headed spool

2421251, B65H 7514, B65H 7528

Patent

active

046590323

ABSTRACT:
A spool (1) comprises a sleeve (4, 4'), flanged members (2, 3) and a resilient dish-shaped member (6) positioned between a thread-winding retaining flange (5, 5') and one of the flanged end members (2). Member (6) is in the form of a conical spoked wheel (FIG. 11). Flange (5, 5') has peripheral teeth (20) for guiding thread onto and a chamfered rim (25) which cooperates with a chamfered rim on member (6). The thread cascades (FIG. 18) from one rim (25) onto the other (27) and is thereby positively guided between member (6) and flange (5). Member (6) applies a positive but gentle clamping pressure to thread trapped at any point about its periphery. Sleeve (4) is made of identical halves which are welded together within an outer sleeve of variable diameter. The construction and interchangeability of the components facilitates production of different high quality spools, e.g. to accommodate different lengths of threads.

REFERENCES:
patent: 2565673 (1951-08-01), Yven et al.
patent: 3357169 (1967-12-01), Bigiel
patent: 3658275 (1972-04-01), Lahmann
patent: 4027831 (1977-06-01), Rottleb
patent: 4165055 (1979-08-01), Dee
patent: 4317548 (1982-03-01), Rottleb

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