Abstract: A radially extending scoop is fastened internally to the discharge end wall of a ball mill structure for rotation with the mill; rotation of the mill will cause the grinding media and pulp to cascade and the scoop will fill and direct the material inwardly toward the mill center and discharge it into a conical cylinder in the mill trunnion which directs the discharge into a receptacle.

Abstract: A cylindrical milling chamber of a disintegrator is made in such a manner that the width thereof is substantially smaller than the diameter. An opening for feeding the material being disintegrated is provided at the center of one of the end walls of the milling chamber, and openings for discharging suspension of the disintegrated material are provided on the cylindrical surface of the milling chamber. At the center of the milling chamber there is provided an agitator for milling bodies mounted concentrically therewith. The milling bodies are made of a material having a density corresponding to the density of suspension of the material being disintegrated. The milling chamber considerably reduces the adverse effects of temperature and pressure on the material being disintegrated, such that overdisintegration of the material is eliminated. At the same time, the specific productivity of the disintegrator is improved by 10.sup.2 times.

Abstract: Shot blasting apparatus comprising a blasting chamber, a rotatable drum in the chamber for holding articles to be shot blasted, and means below the level of the drum to raise and lower the drum to enable articles which have been shot blasted to leave the apparatus.

Abstract: This invention relates to a lifting wall for incorporation in a tube mill having two support plates divided into segments, intermediately disposed radially adjustable lifting vanes and a central transfer cone.

Abstract: A cooled horizontal-axle grinder for the predispersion of solids in liquids, which grinder incorporates a grinding chamber having grinding bodies such as balls therein. The grinder has a circulating pump for the product to be treated which circulates in a continuous manner through the grinding chamber. The rotatable grinder axle carries discs or agitator elements. The grinder includes a separating sieve designed to retain the grinding balls within the grinding chamber while permitting the finely ground product to flow into the interior thereof and then along and around the axle. The sieve includes a cylinder coaxial and rotatable with the axle and having slots of suitable shape to realize the aforementioned function. The cylinder has product outlet holes which communicate with a surrounding cylindrical product chamber. A separator structure surrounds this rotatable cylinder and coacts with a housing wall for defining a narrow flow passage which communicates directly between the grinding and product chambers.

Abstract: Metal flake is formed by charging metal particles, liquid and milling material to a ball mill. Metal flake formed, liquid and milling material are removed from the mill at a rate commensurate with the charging rate. The flake is then separated from the milling material.

Abstract: A novel ball mill providing a maximum efficiency for the balls dropping onto the material to be crushed, this being obtained by associating a vertical tube into which said material is poured together with the ball with means for raising the balls and crushed material passing out of the lower end of the tube, so as to reintroduce same into the upper end of the latter, the sufficiently crushed material being sucked out of the tube at a selected point of its height.

Abstract: The present invention relates to a grinding mill system including a ball mill, rod mill, or the like, the system being characterized by an improved, simple and highly effective proportioning feed device for automatically optimizing through-put under any of a series of differing operating conditions. The system automatically proportions raw material to be ground with partially ground but oversize materials in an efficient manner without the use of complex and expensive electronic and like sensing devices and circuits.

Abstract: Apparatus for processing cremated remains. A hollow drum is mounted for rotation within a housing with an open end of the drum positioned in register with the discharge opening of a detachable loading funnel. A plurality of elongate rods carried within the drum are constrained at their opposite ends by channels so as to undergo relative movement with the inner periphery of the drum. The rod diameters are sized so that they tumble one over the other as the drum rotates for reducing fragments of the cremated remains which are charged into the drum through the loading funnel. The reduced remains drop through apertures in the drum into a discharge funnel and ash pan where they are collected for subsequent removal.

Abstract: A method of crushing particles of material in a ball mill comprises feeding a mixture of balls and a charge comprising the particles to be crushed, a solvent and a lubricant continuously through a ball mill which initially contains balls. The balls are recovered from the mixture issuing from the mill and are re-introduced into the mill with a fresh charge. One form of apparatus for carrying out the method comprises a cylindrical container disposed with its axis horizontal and rotatable about said axis. The inlet and outlet of the mill are arranged centrally at opposite ends of the container, and the outlet leads to an annular sieve which rotates with and is coaxial with the container. The sieve retains the balls for return to the inlet and allows the milled charge to fall into a receptacle. In an alternative form of the apparatus, the container has inlets at both ends and has an outlet with an associated sieve at its mid-length.

Abstract: A mixer for mixing material such as paint, plastics etc. using a grinding media and comprising a container with an agitator for producing the mixing action. An outlet for the mixed material is provided at the bottom of the container with a poppet valve for closing and opening the outlet. The valve permits emptying of the mixed material while retaining the grinding media in the container. The valve is cylindrical, sliding between a lowered closed position and a raised open position, with an apertured side wall, typically a metal screen. The valve may be rotated and/or lowered and raised during the emptying process freeing the screen of packed or settled material for complete emptying of mixed material.

Abstract: A ball mill including the usual drum and a trommel screen rotatable therewith together with mechanism for returning damaged balls and large pieces of aggregate directly from the trommel screen to the drum. This mechanism comprises a plurality of blades mounted on the inner surface of the cylindrical screen which pick up material in the trommel screen as an incident to rotation thereof and dump it onto a trough which extends from the screen to the drum. A jet of water is introduced into the trough at its outer end and passes the materials back into the drum.

Abstract: Reversible rotation grinding mills having a radially compartmentalized discharger with direction and volume control to laterally extending screens so as to obtain a constant "cut" of material or slurry flow to stabilize the volume and size consist of the discharge.

Abstract: A lifting wall adapted to be incorporated in a rotary tube mill comprises an annular support frame defined by a pair of spaced apart discs between which is secured a plurality of circumferentially spaced, radial lifting blades. The radially outer end of each blade is fixed to the discs, but the radially inner end of each blade is slidable relative to the discs so that the blade can expand and contract according to temperature variations.

Abstract: A tube mill for dry grinding of a granular material, the mill being formed with one or more grinding compartments charged with grinding bodies and, downstream of the first or sole grinding compartment, a relatively short compartment bounded downstream by a dam ring having a central opening and upstream by a sieving diaphragm for holding back the grinding bodies, but permitting fluidized ground material to flow from the upstream grinding compartment to the short compartment and vice versa, the short compartment being adapted to serve as a reservoir of fluidized ground material.

Abstract: An apparatus for the continuous dispersion and fine grinding of substances in a liquid or liquefiable dispersion medium, comprises of a cylindrical vessel, in the grinding chamber of which is disposed a coaxial stirrer shaft, which is adapted to be driven rotationally and is equipped with mixing tools, and a filling of grinding elements, the grinding chamber being immediately preceded by a device for mixing the substances with the dispersion medium.