Metal working – Means to assemble or disassemble – Slide fastener
Patent
1978-12-14
1980-06-10
Combs, Ervin M.
Metal working
Means to assemble or disassemble
Slide fastener
83306, 83921, B29D 500
Patent
active
042065445
ABSTRACT:
An apparatus for removing coupling element residuals from a coupled pair of slide fastener stringers comprises a scraper roll drivable for continued rotation and an idler tumbler roll around which the slide fastener stringers travel for rotating the tumbler roll. The tumbler roll has a radial wing which when the tumbler roll is rotated, brings the coupling element residuals thereon into contact with the scraper roll while it is revolving so as to scrape off the residuals reliably. The tumbler roll has pawl means for engaging the fastener stringers at a predetermined position thereon so as to place the coupling element residuals on the tumbler wing. The tumbler roll is rotatable in response to engagement of the pawl means with the fastener stringers being fed. The apparatus of one embodiment includes stop means for temporarily stopping rotation of the tumbler roll and guide means for guiding the fastener stringers properly onto the tumbler wing.
REFERENCES:
patent: 2645001 (1953-07-01), Rodder
patent: 2693630 (1954-11-01), Rodder
patent: 3129498 (1964-04-01), Runnels
patent: 3812754 (1974-05-01), Kawakami
patent: 4022092 (1977-05-01), Scheib et al.
patent: 4024780 (1977-05-01), Patejak
patent: 4139938 (1979-02-01), Moertel
Combs Ervin M.
Yoshida Kogyo K.K.
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