Method and apparatus for coupling two single rows of continuous

Details Method and apparatus for coupling two single rows of continuous Method and apparatus for coupling two single rows of continuous

1975-08-25

1976-04-06

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Of a slide fastener

292075R, B21D 5350

Patent

active

039479463

ABSTRACT:
There are disclosed a method and apparatus for coupling or pairing, prior to attachment to fastener carrier tapes, two single rows of continuous elements for a slide fastener into a double element row, the two rows having been discharged respectively from a pair of separately located element shaping and transporting machines having different power sources. The speeds of both of discharge of the two single element rows and of withdrawal of the combined or double element row are selectively changed with the two single element rows advanced under constant tension, in order to ensure accurate and efficient coupling of the element rows even in the event the two machines operate out of complete synchronism to discharge the element rows at different rates of speed.

REFERENCES:
patent: 2219165 (1940-10-01), Nedal
patent: 3078558 (1963-02-01), Langwell
patent: 3703026 (1972-11-01), Uhrig
patent: 3714698 (1973-02-01), Fukuroi
patent: 3836413 (1974-09-01), Frohlich et al.

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