Metal working – Method of mechanical manufacture – Of a slide fastener
Patent
1989-12-26
1990-12-04
Echols, P. W.
Metal working
Method of mechanical manufacture
Of a slide fastener
29769, B21D 5350
Patent
active
049743058
ABSTRACT:
A fastener tape is intermittently transferred under tension longitudinally thereof. A discrete fastener element is fed to astraddle one longitudinal beaded edge of the fastener tape. Then, the coupling head of the fastener element is pressed at its both sides substantially perpendicularly to the plane of the fastener tape to bring the fastener element into alignment with the plane of the fastener tape. The coupling head is pressed at its distal end against the longitudinal beaded edge of the fastener tape to keep the discrete fastener element from getting detached from the longitudinal beaded edge of the fastener tape. Finally, the diverging legs of the fastener element are pressed at their respective outer sides toward each other to clamp the diverging legs to the longitudinal beaded edge of the fastener tape.
REFERENCES:
patent: 1903659 (1938-04-01), Smith
patent: 2070902 (1937-02-01), Hinman
patent: 2087461 (1937-07-01), Wittenberg
patent: 2125707 (1938-08-01), Anderson
patent: 2141200 (1938-12-01), Sundback
patent: 2217121 (1940-10-01), Lindner
patent: 2244667 (1941-06-01), Banning
patent: 2321951 (1943-06-01), Susskind
patent: 2335034 (1943-11-01), Winterhalter
Echols P. W.
Yoshida Kogyo K. K.
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