Sewing – Special machines – Buttonhole
Patent
1974-05-29
1976-02-10
Hunter, H. Hampton
Sewing
Special machines
Buttonhole
112235, D05C 1516
Patent
active
039371590
ABSTRACT:
Yarn clamping means for clamping yarn during a desired portion of the tufting cycle. Various biasing means and related structures are disclosed to effectively clamp the yarn while loaded in tufting needles, thus preventing dislodgement of the yarn by factors such as yarn severing or yarn thrust from pneumatic transport means.
REFERENCES:
patent: 2887966 (1959-05-01), Felton
patent: 2989014 (1961-06-01), Dedmon
patent: 3095840 (1963-07-01), Ballard
patent: 3220371 (1965-11-01), Short et al.
patent: 3386403 (1968-06-01), Short
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