| 摘要 |
A yarn tensioning device for the continuous application of uniform tension to yarn of indefinite length as it runs through the device, the latter being of the type in which a freely rotatable ball serves to apply the tension to the yarn. The device has a housing with a cylindrically shaped yarn passageway extending vertically therethrough when the device is in use and in which a pair of spaced ceramic yarn eye guides are positioned. A ball is positioned in the passageway between the inserts so as to be seated atop the opening in one of the inserts. The diameter of the passageway is uniform between the inserts and the wall of the housing is provided with an aperture extending therethrough so that the yarn may be threaded through the aperture and through each of the inserts thereby to thread the device with the yarn extending through the passageway and around the ball.
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