Abstract: Apparatus for applying a coating of photographically sensitive liquid on one side of a moving aluminum web is constructed with a backing or support roller having stepped portions at each end of an unstepped central portion. The latter is engaged with the anterior surface of the web and is narrower than the web so that coating liquid applied to one surface of the web does not migrate to the edges of the web to contaminate the anterior side thereof. The width of the central portion is great enough so that mechanical stress on the web is not excessive and the undercut height is sufficient to exceed deflection of the web at the edges thereof.

Abstract: Method and apparatus for dispensing a web of absorbent material selectively in a dry or wetted condition, including means for holding an indeterminate length of web material and drive rolls defining a nip therebetween through which the web is threaded for dispensing. Guide means provided intermediate the drive rolls and the web supply selectively guides the web over the surface of fluid contained in a reservoir or dips a length of the web beneath the surface of the fluid. Forward rotation of the drive rolls dispenses a length of web. In one embodiment, by reason of means interconnecting the guide and a drive roll, reverse rotation of the drive rolls causes the guide to engage the web and move a length of web into contact with the fluid contained in the reservoir. Subsequent forward rotation of the drive rolls dispenses a length of wetted web and moves the guide to a position for guiding the web above the surface of the fluid.

Abstract: A system for controlling the thickness and distribution of a coating applied to a moving substrate includes a pair of "air knives" which discharge pressurized fluid onto a moving substrate as it emerges from a coating bath to screed excess coating from the substrate and leave a coating deposit having a desired thickness and distribution. Each air knife has a plenum chamber which supplies pressurized fluid to a pair of nozzle lips that define an elongated nozzle opening. Fluid flow influencing devices are provided between the plenum and the nozzle lips of each air knife. The flow influencing devices preferably include a baffle plate, a screen assembly, a shutter plate, and a vane assembly. The baffle plate and the screen assembly help assure that a laminar, equally pressurized flow is supplied to the shutter plate.

Abstract: A method and apparatus of forming a coating of a rubber or a synthetic resin having an even thickness on the external surface of a tubular textile jacket made of fibers woven or knitted in a tubular form, which comprises passing the tubular textile jacket through a bath of a coating liquid such as a latex solution or rubber paste or a synthetic resin, and then curing the liquid coating attached to the external surface of the jacket. The present method is characterized in that an expanding member capable of inflating the tubular jacket to almost a circular shape in its cross-section is packed into the interior space of the tubular textile jacket and maintained in a definite position with respect to the coating liquid, thereby keeping the jacket almost circular in its cross-section at least for a distance from the point where the tubular textile jacket departs from the bath of coating liquid to a point where the coating liquid attached to the external surface of the tubular jacket no longer is fluid.

Abstract: A method for forming a coating of rubber or a synthetic resin having an even thickness on the external surface of a tubular textile jacket made of fibers woven or knitted in a tubular form, which comprises continuously passing the tubular textile jacket through one or more baths of a coating liquid and then solidifying the coating liquid attached to the external surface of the jacket, characterized in that an expanding assembly provided with plural expanding members which are capable of inflating the tubular textile jacket to almost circular or elliptical form in its cross section and are arranged at appropriate intervals in the longitudinal direction of the assembly is put in the interior space of the jacket and maintained in a definite position to the coating liquid in the baths, thereby keeping the jacket almost circular or elliptic in its cross section at least for a distance from the position where the tubular textile jacket departs from the bath of coating liquid to the position where fluidity of the co

Abstract: A feeding apparatus for a sheet-like material is disclosed wherein means for introducing a rectified liquid stream are oppositely provided on both sides of the inlet portion of a slit type guide passage for the sheet-like material.

Abstract: A method is disclosed for continuously applying a resinous wear-resistance surface of finish coating to a traveling web substrate which comprises moving the web into a free hanging loop, continuously feeding the liquid resin coating composition into the loop at a rate so as to maintain at least a slight overflow of the composition at the sides of the loop, withdrawing the web upwardly from the loop with a thin coating of the resin applied thereto, and then heating the coated web for drying the coating.

Abstract: A flexible latent image-bearing photoconductive element is driven through a U-shaped path to form a self-contained electrographic developer reservoir to which electrically conductive toner particles are supplied. A grounded, electrically conductive, apertured member positioned in the toner reservoir in close proximity to the image-bearing surface of the photoconductor imparts continuous motion to the toner particles as the image-bearing element moves therepast. The motion creates a sweeping action which reduces the amount of toner background present in a finished print.

Abstract: Continuous metallic strip hot dip metal coating apparatus in which streams of gas under pressure are impinged against opposite faces of a continuous metallic strip emerging from a molten coating metal bath to thereby control the final coating weight on the strip, there being provided means for giving an indication corresponding to the final coating weight on the metal strip in combination with means responsive to such indication for controlling the impingement effect of the streams of gas under pressure to thereby obtain a desired final coating weight on the metal strip.

Abstract: A dispensing package comprises a toroidal container body enclosing a coreless rolled web of moisture absorbent material having free rotation about the axis of the body on body side wall areas of reduced diameter at opposite ends of a liquid reservoir, the leading end of the web being drawn through a longitudinal slot in a body side wall extending the full width of said web and through upper and lower flange lips defining with the slot a dispensing passage.

Abstract: A process and apparatus system for continuous printing of fabric includes a water surface in a vat on which dye materials are formed into a uniform film and fabric is contacted therewith. The film forms in a tiltable tray like container extending the full width of the vat of water and dyes are distributed thereon by compressed air nozzles which tilt with the tray devices. A baffle feeds fabrics into the water during the process.

Abstract: An apparatus for the treatment of a textile material comprising at least one treatment zone intermediate upstream and downstream treatment zones wherein successive zones are separated from each other by respective sealing zones. The textile material is propelled through the treatment zones by means of a forced circulation of a sealing liquid that flows through the sealing zones.

Abstract: Steel strip at around 1000.degree.F. or higher is run into a galvanizing pot maintained at a higher than conventional temperature to cause alloying of the iron with the spelter on the surfaces of the strip, the strip being passed through a zone of cooled molten spelter before being withdrawn from the galvanizing bath, the steel strip issuing from the bath having an inner iron-zinc alloy coating and an outer molten spelter coating, substantially all the molten spelter coating being removed from at least one surface of the strip by a stream of gas under pressure. Where molten galvanizing spelter coating is left on one side, the weight of the molten layer averages at least 1/10th of an ounce per square foot of coated surface.