Abstract: Apparatus for imparting visual surface effects to a relatively moving substrate by application of discrete streams of heated pressurized fluid to surface areas of the substrate. The apparatus includes an elongate manifold assembly comprising two fluid receiving compartments, each extending across the path of said substrate. Fluid from the first compartment passes into the second compartment, which is comprised of a series of chambers, each associated with a throttling gap. The fluid is uniformly mixed within this second compartment, and may then be directed onto the substrate as a thin, continuous stream extending the length of the manifold. By use of blocking streams of relatively cool fluid, smaller streams or groups of streams extending along selected portions of the manifold may be formed.

Abstract: Improved apparatus for imparting visual surface effects to a relatively moving substrate material by application of discrete streams of heated pressurized fluid to surface areas of the material. The apparatus includes an elongate manifold assembly disposed across the path of relative movement of the material and comprising a pair of elongate manifold housings which are coupled by quick release clamping means in fluid tight relation to facilitate pattern changes and maintenance of the treating apparatus. The manifold housings are constructed and arranged so that any distortion of the manifold assembly caused by differential thermal expansion of the same is resolved to minimize displacement of the manifold toward or away from the substrate. Baffle means, filter means, and fluid passageways are provided in the manifold assembly to evenly distribute the heated air at uniform temperature throughout the full length of the assembly.

Abstract: Improved apparatus for treatment of relatively moving substrate materials by precise selective application of discrete, high temperature pressurized streams of fluid against the surface of the materials to impart a visual change thereto. The apparatus includes an elongate manifold for receiving pressurized heated fluid, such as air, disposed across the width of the relatively moving material and having a plurality of spaced parallel fluid stream discharge channels for directing the fluid into the surface of the material. Pressurized cool fluid, such as air, is directed into selected manifold discharge channels to block selectively the passage of pressurized heated air therethrough.