Abstract: An assembly and method for collecting and releasing magnetic materials includes an elongated permanent magnet (A) within an elongated cover (B) constructed from non-magnetic material for providing a collection area for the magnetic materials thereon opposite the magnet. Apparatus (C) separates the magnet to a more remote position in relation to the collection area for releasing magnetic materials from the elongated cover. The magnet and the cover may be moved while in superposed closely adjacent relation for collecting magnetic material and thereafter separated for releasing magnetic material collected on the cover. A driven conveyor (D) may be included in the assembly for transporting the magnet and the cover through a coolant liquid containing magnetic materials in the form of particulate matter formed during a machining operation.

Abstract: A prewetting apparatus for mixing dry material with a liquid before mixing. The wetting apparatus has a cylindrical upper chamber mounted above a lower mixing chamber. The lower mixing chamber has a conic surface with an outlet below. Pressurized liquid is introduced from a housing which extends circumferentially about an upper portion of the lower section. Liquid is introduced through apertures into a groove at the upper edge of the conic surface at a predetermined flow rate and pressure so as to swirl helically down the conic mixing surface to exit at the outlet. Dry particulate matter is metered through an inlet formed in the upper cylindrical portion and is dropped at a predetermined rate into the liquid swirling in the mixing section.