Winding – tensioning – or guiding – Support for a strand material holder – With brake for holder and/or strand
Patent
1974-09-16
1976-11-09
Christian, Leonard D.
Winding, tensioning, or guiding
Support for a strand material holder
With brake for holder and/or strand
242147R, B65H 4900, B65H 5900
Patent
active
039906523
ABSTRACT:
A device for applying generally uniform tension to wire, especially wire of fine diameter, as it is unwound over an axial end of a coil or spool of wire. The tensioning device is effective to prevent curling and twisting of the wire as it is unwound. This device is also useful in tensioning wire during high-speed winding where the wire is rapidly accelerated and decelerated, for example, during winding of a coil having a core of square or rectangular cross-section. This device is also useful in pretensioning wire before it winds around a final tensioning mechanism. The device may be used as a final and sole tensioning device on fine and ultra fine gauge wire. The tensioning device includes a disc having a plurality of radially extending filaments which protrude beyond the periphery of the axial end of the spool of wire and engage the wire as it is unwound from the spool. The tensioning device includes means to bend the filaments in the direction of uncoiling of the wire as the uncoiling resistance of the wire increases to maintain a relatively constant resistance against the wire during uncoiling.
REFERENCES:
patent: 3491967 (1970-01-01), Sawyer et al.
patent: 3632062 (1972-01-01), Sole
patent: 3811639 (1974-05-01), Jordan
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