Abstract: A separating apparatus, in particular for clarification plants, comprises a revolving strainer rake or rake sieve having a plurality of series connected rake sieve sections which each consist of adjacently disposed hook-like plates, each plate having a hook portion projecting from the front end edge, wherein the thickness of each plate decreases from the front end edge in the direction towards the rear end edge and a stationary cleaning comb adapted to engage said strainer rake sieve sections from said front edges of said hook-like plate portions.

Abstract: The rotary disk that mechanically provides radial acceleration to the particles of the coating powder as they enter the electrostatic field of the apparatus is provided with a grid or screen of fine wires on its upper side near its outer edge to break up agglomerates of the coating material that may be present in the powder when it reaches the neighborhood of the disk.

Abstract: Powder to be used for coating articles electrostatically is maintained in a fluidized condition in the supply container and in conveyor ducts all the way to a discharge over the inner wall of an annular channel onto the rotating disk of an electrostatic coating machine.