Abstract: A particulate solids conveying and draining device, for mounting in a solids outlet wall, comprising a funnel-shaped rotor with particulate solids scooping members attached thereto. Each particulate solids scooping member comprises a paddle scooping portion leading to a liquid draining, particulate solids spilling, rib portion. In operation, the rotor is rotated so that the particulate solids scooping members scoop a slurry of the particulate solids and, on rotation, drain liquid therefrom through liquid return ports to the center of the funnel-shaped rotor and back to the slurry. When particulate material reaches its angle of repose on a particulate solids scooping member, it tumbles across and off the rotor on the other side of the outlet wall to that at which the slurry is situated.

Abstract: A composition for forming pressure- and heat-sensitive coatings comprising finely divided organic material of particle size from about 0.05 to 10 micrometers in diameter having a melting point above about 150.degree. C., the particles being of substantially uniform color and subject to plastic flow by heat or pressure, and a liquid carrier normally including a binder dispersed in the carrier to give a thixotropic gel. The composition optionally includes water-soluble or dispersible dye or a pigment uniformly dispersed in said particles. A method of preparing the compositions comprises precipitating the solid organic material in water, normally incorporating a binder, and optionally incorporating coloring material into the organic material to form a gel-type paste.

Abstract: An aqueous coating composition giving a pressure-sensitive coating when applied to a substrate and method of preparation thereof. The composition is in the form of an aqueous gel consisting of fatty acid soap particles and a selected non-waxy binder. The soap-forming cations are selected from sodium, potassium, and ammonium and the non-waxy binder is of the type of, vinyl acetate polymers and copolymers, acrylic polymers and copolymers, and mixtures thereof. The coating is deposited in the form of transparent, crystalline particles.