Sewing – Elements – Bobbin winding
Patent
1978-04-17
1981-01-13
Schroeder, Werner H.
Sewing
Elements
Bobbin winding
226113, 226158, 242 20, 112186, 112181, D05B 5726, D05B 3704, D05B 4500, H03K 1700
Patent
active
042443130
ABSTRACT:
Thread-loading apparatus for loading a bobbin spool with a predetermined length of thread between sewing operations wherein there is a reciprocal loading tube arranged to receive and draw thread from a package of thread, deliver its leading end to the bobbin and project it onto the bobbin while the latter is being rotated at a high speed so as to be caught thereby and wound onto the bobbin; a slack-producing device for drawing a slack length of thread from the package of thread preparatory to a loading operation to thus eliminate the inertial resistance of the package of thread to giving up thread; a precisely-controlled thread measuring device employed to control the length of thread delivered to the bobbin; and a bobbin having peripherally-spaced flexible fingers on its hub for entraining the leading end of the thread delivered to the bobbin. The apparatus, in one form, comprises a loading tube which is arcuately reciprocal toward and from the loading position and, in another, a loading tube which is rectilinearly reciprocal toward and from the loading position.
REFERENCES:
patent: 2781790 (1957-02-01), Hutchins
patent: 3509840 (1970-05-01), Rovin
patent: 3575217 (1971-04-01), Pfarrwaller
patent: 3580444 (1971-05-01), Van Mullekom
patent: 3582796 (1971-06-01), Shifflet, Jr.
patent: 3628129 (1971-12-01), Riley
patent: 3628480 (1971-12-01), Van Ness
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patent: 3832960 (1974-09-01), Mayer et al.
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patent: 4117789 (1978-10-01), Rovin et al.
Levine Lawrence J.
Opuszenski Theodore
Pellicano Joseph
Rovin Herman
Swenson Alan F.
Automatech Industries Inc.
Falik Andrew M.
Schroeder Werner H.
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