Apparatus for cleaning and demoisturizing running webs of photographic paper and the like
AssigneeAgfa-Gevaert
InventorJurgen Brunner
Life of this patent
Estimating the term…
Abstract
A running web of wet exposed and developed photographic paper which issues from a rinsing bath in a developing machine is caused to advance around a fixedly mounted guide roll and through a passage between the guide roll and the orifice of a combined cleaning and drying member which discharges compressed air against successive increments of the running web. The air discharging member is biased upwardly toward the roll to abut flanges which are provided at the ends of the roll and serve to determine the minimum width of the passage in such a way that the air discharging member cannot rise into physical contact with the web.
Claims17
Apparatus for removing entrained substances from running webs with a gaseous fluid, particularly, for removing moisture from running webs of exposed and developed photographic paper, comprising a web guiding member;
- a fluid discharging member adjacent said guiding member and defining therewith a web-receiving passage of variable width;
- and self-adjusting means for supporting at least one of said members for movement relative to the other of said members in directions to vary the width of said passage while a web is running therethrough.
Apparatus for removing entrained substances from running webs with a gaseous fluid, particularly for removing moisture from running webs of exposed and developed photographic paper, comprising a web guiding member including a roll, the web being trained over said roll along an arc of more than 90.degree.;
- a fluid discharging member adjacent said roll and defining therewith a web-receiving passage of variable width, said passage being adjacent that portion of the web which is trained over said roll and said roll being located at a level above said fluid discharging member;
- and means for supporting at least one of said members for movement relative to the other of said members in directions to vary the width of said passage, said supporting means including means for biasing said fluid discharging member upwardly toward said roll with a force which compensates for or slightly exceeds the weight of said fluid discharging member.
Dependencies are inferred from the claim text.