Abstract: A deep media bed filter is combined with an oil skimmer integrated into the filter, the oil skimmer including an arrangement for collecting oil floating on the water to be filtered in a filter tank. In an unpressurized version of the filter, the level of water to be filtered in the tank is controlled so as to normally not flow over an annular trough inside wall located at the top of the tank. The inside wall of the trough thereby acting as a weir extending around the inner perimeter of the annular trough to be able to receive oil flowing over the weir. When a predetermined oil accumulation atop the water is detected by an interface detector, the water level in the tank is increased sufficiently so that the oil be high enough to pass over the weir and into the annular trough. The collected oil is thereafter drained out of the annular trough as by gravity into a vessel.

Abstract: A demister apparatus for machine tools having an enclosure booth for confining mist in which a varying outflow of air is drawn from the booth and directed to a remote demister apparatus from a minimum when the access doors to the enclosure are closed to a maximum when one or more of the doors are opened. The air flow may also be varied with the number of machine tools in operation as well with the state of filters in the remote demister apparatus. A cyclonic separator is also provided adjacent to the booth which functions well in a vertical up flow mode over a range of air outflow rates of flow.

Abstract: A demister apparatus for machine tools having an enclosure booth for confining mist in which a varying outflow of air is drawn from the booth and directed to a remote demister apparatus from a minimum when the access doors to the enclosure are closed to a maximum when one or more of the doors are opened. The air flow may also be varied with the number of machine tools in operation as well with the state of filters in the remote demister apparatus. A cyclonic separator is also provided adjacent to the booth which functions well in a vertical up flow mode over a range of air outflow rates of flow.

Abstract: A demister apparatus for machine tools having an enclosure booth for confining mist in which a varying outflow of air is drawn from the booth and directed to a remote demister apparatus from a minimum when the access doors to the enclosure are closed to a maximum when one or more of the doors are opened. The air flow may also be varied with the number of machine tools in operation as well with the state of filters in the remote demister apparatus. A cyclonic separator is also provided adjacent to the booth which functions well in a vertical up flow mode over a range of air outflow rates of flow.