发明授权
US4289085A Bobbin loading apparatus for sewing machines 失效
缝纫机骨架装载机

Bobbin loading apparatus for sewing machines
摘要:
A device for automatically supplying thread to the bobbin of a sewing machine of the kind wherein there is a thread feed tube arranged to receive the thread from a bulk source, a predetermined length of the thread is delivered to a rapidly rotating bobbin for winding of the thread thereon and then the thread is severed from the source.
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