(under subclass 65) Devices for separating material by adhesion of components to surfaces coated with mercury in which the material is forcibly projected against the mercury-coated surfaces.
(1) Note. This subclass will include devices in which gravital fall of substantial extent is employed to secure the impacting forces, as well as those which employ projecting means.
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190, for metallic liquid flotation separations in which the material is forcibly projected against the surface of the bath.