Method and apparatus for finishing a pair of elongate slide fast

Details Method and apparatus for finishing a pair of elongate slide fast Method and apparatus for finishing a pair of elongate slide fast

1979-11-15

1982-04-20

Hall, Carl E.

Metal working

Method of mechanical manufacture

Of a slide fastener

29767, 219243, B29D 500, A41H 3706

Patent

active

043251730

ABSTRACT:
A pair of interengaged slide fastener stringers of elongate length are longitudinally advanced in an intermittent manner over a clincher die and a heater plate. An end stop is vertically driven by a punch above the clincher die and is attached to the stringers at a terminal end of one of the longitudinally spaced chains of coupling elements. A portion of the stringer tapes is heated and fused adjacent to the terminal end of the coupling element chain substantially simultaneously with the end stop attaching operation. Such fusing operation is carried out by a presser vertically movable for pressing the stringer tapes against the heater plate.

REFERENCES:
patent: 3340594 (1967-09-01), Frohlich et al.
patent: 3488239 (1970-01-01), Heimberger
patent: 3570104 (1971-03-01), Jensen
patent: 3705446 (1972-12-01), Gustavsson
patent: 3872571 (1975-03-01), Douri

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