Sewing – Elements – Needles
Patent
1978-10-05
1980-04-22
Schroeder, Werner H.
Sewing
Elements
Needles
D05B 8700
Patent
active
041989155
ABSTRACT:
A pneumatic needle threading assist is disclosed which has a thread collecting chamber in which, due to the air flow therethrough, thread having passed through the eye of a sewing needle, is therein deposited in a series of spiral loops limiting the amount of thread in the vacuum line and preventing the vacuum source from being contaminated with the thread.
REFERENCES:
patent: 571818 (1896-11-01), Willcox
patent: 3486472 (1969-12-01), Kaplan
patent: 3599587 (1971-08-01), Greulich
Peterson Wesley R.
Sedlatschek Robert
Totino Peter J.
Transue James A.
Bell Edward J.
Falik Andrew M.
Schroeder Werner H.
Smith Robert E.
The Singer Company
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