operates automatically to keep the sewing machine working for long periods.YAKATA, YOSHIHIRO, KYOTO, JPDE4025475A1 * Aug 10, 1990 Mar 7, 1991 Yoshihiro Yakata Sewing machine bobbin removal - is automatic operation to replace and adjust bobbins in shuttle to keep machine working for long periods...
to give an automatic removal, adjustment and exchange of the bobbin housing from the shuttle of a sewing machine, has a pin plate which can move forwards and penetrate between the surfaces of the bobbin housing and the capsule flap of the housing from the pointed side of the flap. When ...