Dual path web transport and processing apparatus with radiant en

Details Dual path web transport and processing apparatus with radiant en Dual path web transport and processing apparatus with radiant en

1980-06-18

1982-08-24

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LG, 219121LT, 219121LY, B23K 2700

Patent

active

043462847

ABSTRACT:
An apparatus and method for processing a sequence of webs by exposure to radiant energy. The apparatus includes structure defining a pair of independent transport paths and apparatus for emitting radiant energy and selectively directing it into either of two treatment zones, the respective treatment zones being aligned with the respective transport paths. The radiant energy is directed into the treatment zone aligned with each transport path while a web is being fed along such path. The leading end of each web is threaded along one of the transport paths while a web is being fed and treated on the other path, so the radiant energy emitting portion of the apparatus is not idle during threading.

REFERENCES:
patent: 3256524 (1966-06-01), Stauffer
patent: 3262122 (1966-07-01), Fleisher et al.
patent: 3582466 (1971-06-01), Quirk
patent: 4049945 (1977-09-01), Ehlscheid et al.
patent: 4118619 (1978-10-01), McArthur et al.
patent: 4149918 (1979-04-01), Cislak
patent: 4158762 (1979-06-01), Saunders
patent: 4161808 (1979-07-01), Wittstock
patent: 4218606 (1980-08-01), Whitman

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