Abstract: A mixing agitator for use in a kettle wherein food is mixed either with or without cooking of the food, the invention allows gentle mixing of substantially liquid mixtures to suspend solids uniformly therein without damage to the solids. The agitator preferably takes the form of a rotary shaft horizontally disposed within a kettle having a substantially hemispherical bottom portion, the shaft having contoured blade-like elements attached thereto which act on rotation of the shaft to lift material from the bottom of the kettle to the top of the body of the food and thus produce a uniform dispersion of liquid and solid materials during a cooking/mixing processing phase, a mixing only phase, or a subsequent phase of dispensing the uniformly mixed material from the kettle.

Abstract: A rotary mixing apparatus is described. The apparatus comprises a vessel (1) for containing the material to be processed, an outlet (9) for the processed material in a lower portion (2) of the vessel and an agitator connectable through the lower portion of the vessel to drive means (10) outside the vessel so as to be rotatable in the vessel about an axis inclined to the vertical, the agitator being operable to lift material to be mixed from the lower portion (2) to an upper portion (3) of the vessel (1).

Abstract: A device for the removal of substances on the inner walls of agitated reaction vessels includes scrapers. The scrapers are adjustable angularly or displaceable toward and away from the walls of the vessel and supported from an agitator shaft to scrape off material accumulating on the walls of the reaction vessel.

Abstract: A mixer for mortar, plaster, fireproofing material and the like utilizing a plurality of mixing paddles supported from a horizontal shaft in a pivotal mixing drum. Six paddles are mounted on the shaft and are oriented in a unique arrangement by which they rotate in a triple eight mixing action constantly dividing and recombining the mixture again and again thereby resulting in a smooth, uniform mix. The paddles are provided with blades arranged so that material in the end of the drum is pushed half way to the middle of the drum by the first blade. The second blade pushes material from the center of the drum halfway toward the end. The next following blade then cuts the resulting pile into two approximately equal parts and pushes one part that has been cut from the pile toward the opposite end of the drum. This action occurs simultaneously at both ends of the drum every time the paddle shaft revolves 360.degree. and up to 50 cycles per minute depending, of course, upon the rotational speed of the paddle shaft.

Abstract: A wall scraping mixing tool for mixing, drying or reacting dry materials, semi-dry materials, or viscous, pasty materials with or without fillers or fibers, within the walls of a mixing container having a main shaft, and at least one support arm coupled to said main shaft. The mixing tool has a generally flat, rectangular plate mounted perpendicular to the radial plane of the support arm having a forward straight edge disposed adjacent to the container wall and a rear edge disposed away from the container wall so that the rectangular plate is inclined with respect to the container wall. There are two substantially triangular planes disposed on the rectangular plate, having side surfaces inclined relative to each other and connected at one edge thereof forming a wedge-shaped double-sided body for connection to the end of the support arm. The forward edges define a point located on the forward straight edge of the plate.

Abstract: Apparatus for applying a reactant gas to an extrudable polymer, as, for example, a carbonate resin having the phenolic hydrogen end atoms replaced by stress corrodant preventive groups which are halohydrocarbon groups or a silane groups or the hydrogen end atoms replaced by a capping group having fluorescent properties to provide ultraviolet light and stress corrosive protection.

Abstract: A bulk polymerization reactor takes the form of a vertical, cylindrical vat of a jacket construction defining a reaction chamber which a rotary drive shaft having an off-center longitudinal section with perforated discs and shearing blades extends vertically through. Successful preclusion of abnormal stagnation of the liquid phase in the reaction chamber during polymerization avoids undesirable coloring in the product while assuring stable polymerization and high yield.

Abstract: An agitator wiper for a tubular chemical vessel in which agitation of the vessel contents is achieved by a blade positioned helically around a central rotating shaft and wiping of the vessel walls is achieved by segmented plates positioned along the blade and constructed to provide wiper tips which wipe all portions of the vessel walls.

Abstract: A process and apparatus for the continuous drying and/or granulating of loose material. Loose material is conveyed through a drying/treating horizontal container by the action of a gas stream, the gas conveying force being opposed by a lesser, mechanical force derived from mixing tools within the container.

Abstract: A package for materials that are to be mixed shortly before use comprises a compartmented container and a device for rupturing a frangible partition member in the container. The device comprises a shaft having an upper end connected with a closure for a top opening in the container. Resilient arm-like vanes project radially from the shaft near a pointed lower end thereof and have their tips engage inner wall surfaces of the container under bias to hold the shaft coaxial. Downward movement of the device causes the point on the shaft and sharp bottom edges on the vanes to cooperate in completely rupturing the partition member, and the device then remains in a position in which the vanes break up and stir the materials as the container is shaken.

Abstract: A method for controlling the properties of a mixture of materials to which are added a liquid and at least one additive causing expansion during production by mixing, wherein the speed and the absolute value of the volumetric changes undergone by the mixture during the mixing operation are measured in continuous or intermittent manner, and the addition of said liquid and said at least one additive to said mixture is controlled as a function of these measurements and of previously established predetermined data.

Abstract: A chemical dispensing system having its most important use in dispensing flowable developing and finishing chemicals upon exposed lithographic printing plates comprises a supply container for each of the chemicals positioned immediately above the dispensing station therefor, each supply container containing continuously moving stirring means for keeping the chemical continuously in motion to homogenize the same. A number of flexible, laterally spaced dispensing tubes extend downwardly from each supply container, and a flow control valve is provided for each tube which pinches it into a closed position at a point near the container so that the volume of liquid which remains in the tube between the tube pinch point and the container is relatively small.

Abstract: A method for flushing pigments in the form of water-containing cakes by replacing the water with an organic vehicle using an apparatus comprising a horizontal mixing cylinder having a coaxial mixing shaft, and inlet opening and a lower outlet opening. The shaft has mixing tools thereon. The pigment cake and vehicle are added to the container and the shaft is driven at a rate such that the formed pigment-vehicle paste forms on and is wound up on the shaft, leaving the water in the lower part of the container for easy removal through the lower opening.