I should add that from the patent shown above and the original Kodak patents, a slide or cascade coater has the emulsion exposed for quite a distance before it meets the film surface, but an X or extrusion hopper has the emulsion meet the film upon extrusion from the hopper itself. This is seen in the photo.

Note also that it is about 4" wide. This is on the scale of a research machine capable of 4x5" sheets. It in no way is meant as a criticism but does point out the limitation to 4" wide coatings. The design of a 10" machine would be just the thing for LF, as is this can supply 35mm (if you can perf it), 120 if you can coat on 5 mil stock and 4x5 on 7 mil stock.