Abstract: A device for holding a graver in proper relation to a grinding stone for sharpening is composed of seven main parts, namely, a frame, a graver face grinding base block, a graver heel grinding base block, a right-hand arcuate sector, a left-hand arcuate sector, both pivotally mounted on the graver heel grinding base block, a bearing hub, including graver clamping means, mounted near the mid-region of the frame, and a grinding stone assembly.

Abstract: This invention provides a separator for two relatively insoluble mixed liquids of different specific gravities as, for example oil and water. More particularly the invention relates to a bilge oil separating system (BOSS), or apparatus and includes a float controlled bilge pump for pumping the oil contaminated bilge water from a ship's bilge into a splatter chamber, that, to considerable measure, undoes the globularization of the oil caused by the bilge pump. This is effected by changing the rather rapid downward flow of the mixed liquids out of the delivery tube to a hollow jet type outwardly and upwardly directed flow that then changes to a hollow cylindrical downward flow against the inner cylindrical surface of the wall of a splatter chamber.