Machine for conveying a material in web form through treatment t

Details Machine for conveying a material in web form through treatment t Machine for conveying a material in web form through treatment t

1975-01-17

1977-04-26

Schacher, Richard A.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

On endless belt or chain

226189, 354321, B65H 1734

Patent

active

040196674

ABSTRACT:
A device is disclosed, for treating a material (for example photographic films) through a plurality of processing baths, different stay times being required in different baths. The desired variations of the stay times are obtained by varying the geometrical configuration of the material strip, this being obtained by causing the travel path of the material to be varied geometrically by increasing or reducing lap bends introduced in the strip of material by lifting or depressing a few conveying rollers.

REFERENCES:
patent: 1955813 (1934-04-01), Klappenecker
patent: 2913973 (1959-11-01), Bull
patent: 2927503 (1960-03-01), Zollinger
patent: 2965013 (1960-12-01), Dorion
patent: 3287013 (1966-11-01), Fairbanks
patent: 3413904 (1968-12-01), Friedel
patent: 3598037 (1971-08-01), Houston
patent: 3753488 (1973-08-01), Wilson

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