Bobbin-thread tension-device for sewing machinesBarron William LUS1879023 * Jul 29, 1931 Sep 27, 1932 Singer Mfg Co Bobbin-thread tension-device for sewing machines
Backlash occurs when the machine stops sewing, but the bobbin thread keeps unwinding. Tightening the bobbin tension will fix this. When using a heavy or thick thread in the bobbin, the preset tension might be too tight. This may put too much pressure on the thread as it comes out of ...
Tops And Bobbin Templates|How To Pickup Bobbin Thread|Universal Compatibility:Fits all bobbins with a 1/4"(6mm) center hole, ensuring versatility for various sewing machines. Continuous Operation:Designed for continuous use, this bobbin winder operates smoothly on AC voltage 110V or 220V. ...
申请(专利权)人: JANOME SEWING MACHINE CO. LTD. 发明人:S Hanyu,Y Tonomura,H Takenoya,M Hara 被引量: 8 摘要: A device for automatically adjusting the tension of a lower thread, which comprises a lower thread bobbin arranged on a bottom plate of a bobbin carrier turnably carrying the ...
When To Use: Bobbin winders, whether built into the machine or a portable machine, help to wind the thread on the bobbin and help to distribute the bobbin thread evenly so that it will be compatible with the tension of the top sewing machine thread. Fun Facts: Many portable bobbin winders...
Sewing machine and bobbin thread tension control device for a sewing machine To provide what may be in the lower thread tension control device for a sewing machine, without depending on the frictional force the lower thread tension, and, finely, and accurately control. Has an outer hook 110, ...
e. sewing machine speed, drawing tension of bobbin thread and stitch length, of the lock-stitch sewing machine... M Onoue - Sen-i Gakkaishi 被引量: 0发表: 1984年 Bobbin thread depletion detector for sewing machine A bobbin thread depletion signal for lock stitch sewing machines or the like...
PURPOSE:To maintain the tension of a thread during a time in which tension of a thread is started by a moving knife itself, by a method wherein a covering member is situated on the end surface of a rotating hook in a manner to cover a part of the end surface therewith, a protrusion...
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PURPOSE: To greatly extend the length of a bobbin thread which may be continuously fed, so as to remarkably enhance the efficiency of a sewing work, and to easily adjust the tension of the bobbin thread to be fed, irrespective of the diameter of the bobbin thread. ;CONSTITUTION: A bobbin...