Agfa-Gevaert Ag

Lutz Beckmann

Viktor Osegowitsch

Jurgen Brunner

Ernst Schweiger

Dieter Weidlich

Apparatus for simultaneously treating two or more webs of photosensitive material has a tank with sets of pulleys for advancement of discrete webs. The sets of pulleys are installed in discrete compartments which are separated from each other by one or more light-intercepting partitions having one or more passages for the flow of liquid but preventing the penetration of light. Each set of pulleys is driven by a discrete motor or by a discrete clutch receiving torque from a single prime mover. The compartments are sealed by discrete closures. If the parts which are used to advance and treat a particular web happen to be defective or require attention for any other reason, the respective set of pulleys is arrested while the other set or sets of pulleys continue to transport the respective web or webs, and the cover for the compartment which confines the arrested set of pulleys is removed to afford access to the respective compartment.

Apparatus for simultaneously processing plural webs of photosensitive

Apparatus for wiping moisture off the sides of running webs of photosensitive material in developing machines employs one or more deformable elastic wiping elements in the form of elongated lips or rings which are maintained in contact with the respective side or sides of the running web. Each wiping element extends transversely of the path of the running web and is imparted a movement having a component in a direction transversely of the running web. This reduces the likelihood of extensive localized wear upon the wiping element or elements.

Apparatus for wiping moisture off the sides of running webs of

A tank for wet treatment of a running web of photosensitive material has a set of upper pulleys and a set of lower pulleys mounted on a common support and movable up and down toward and away from the upper pulleys. The web is alternatingly trained over the upper and lower pulleys to advance along a meandering portion of its path from a first drive at the inlet into the body of liquid in the tank to a computer-controlled second drive at the locus of emergence of the web from the body of liquid. At least one additional drive is provided for one or more median upper pulleys to thus reduce the tensional stress upon the repeatedly looped running web. The additional drive can employ a capacitor motor, a d-c motor, a hysteresis motor or clutch, a pneumatic motor or a hydraulic motor. Such additional drive can rotate the respective upper pulley at a constant speed or at a speed which varies as a function of changes in the speed of advancement of the web through the body of liquid. The web is tensioned solely by the weight of the lower pulleys and of the common support for the lower pulleys.

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Munich, Germany

Lutz Beckmann