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William Henry Northcott
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Publication of GB190421436ApublicationCriticalpatent/GB190421436A/en
21,436. Northcott, W. H. Oct. 6. Drawings to Specification. Liquids, purifying.-A mixture of spent lubricating-oil and water obtained from the separator of a wet air-compressor is purified by passing it into a collecting-vessel having a continuous supply of clean water ; the scum rises to the surface and passes away by an overflow pipe, while the purified liquid is returned for re-use in the compressor.
GB190421436D1904-10-061904-10-06Improved Machinery for Compressing Gases and in connection therewith.
ExpiredGB190421436A
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