Abstract: A method and apparatus for extracting bitumen whereby tar sand containing bitumen components is contacted with a heated thinning oil mixture to reduce the tar sand viscosity and dissolve bitumen to form a lower viscosity feed slurry. The feed slurry is contacted with a light oil in a separator wherein the mixture is separated into product oil and oil sand. The oil sand is washed with solvent in a countercurrent fashion to extract occluded oil to form the light oil. Washed sand containing solvent is heated above the boiling point of the solvent in a multi-hearth solvent recovery furnace to vaporize the solvent. The solvent vapors are stripped from the sand by flowing inert gas through the sand in the multi-hearth solvent recovery furnace. Inert gas containing solvent vapors is directed from the multi-hearth solvent recovery furnace to a heat exchanger/scrubber where the inert gas and solvent vapors are contacted with product oil from the separator.

Abstract: An electric manicure includes a hand-held or table-supported housing enclosing a motor and a power-driven grinding disc for fingernail trimming. A touch-plate having a slot-like opening for insertion of a fingernail forms part of the housing enclosure in proximity to the grinding disc. The touch-plate is yieldably movable towards the grinding disc, against biasing spring pressure, under the force of the finger thereon which also causes the fingernail to protrude into the slot beyond the flesh part of the fingertip. The extent of advance of the touch-plate and its spacing from the grinding disc are controllably adjustable through a lever and cam to permit preselection of fingernail trim length. Orientation of the slot in relation to the grinding disc permits a wide variety of trimming procedures. The disc may be provided with fingernail buffing means on its circumference.