Metal working – Method of mechanical manufacture – Of a slide fastener
Patent
1982-12-13
1985-01-22
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Of a slide fastener
29 332, 29766, 29767, B21D 5350, A41H 3706
Patent
active
044942923
ABSTRACT:
A method and apparatus for securing a bottom end stop to an indefinite length of fastener chain including alternately space portion where elements are removed and engaging element portion are disclosed. The feeding movement of the fastener chain is arrested by protruding a chain stopper into the space portion downstream of one of the element portions while slidably guiding and opposite edges of the element portions. The fastener chain is then resiliently held down at its space portion or element portion downstream of the space portion by an element stopper and the chain stopper is pulled out of the space portion. By this, the fastener chain is allowed to move until its element portion upstream of the space portion abuts against the element stopper, where upon a bottom end stop is driven into the end of the element portion upstream of the space portion.
REFERENCES:
patent: 2096685 (1937-10-01), Osgood
patent: 3872571 (1975-03-01), Douri
patent: 4236292 (1980-12-01), Orr et al.
patent: 4307511 (1981-12-01), Yoshida
patent: 4368570 (1983-01-01), Morita
Goldberg Howard N.
Nichols Steven E.
Yoshida Kogyo K. K.
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