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Expired
Application number
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George Winfield
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Individual
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Individual
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Publication of GB190403945ApublicationCriticalpatent/GB190403945A/en
3945. Winfield, G. Feb. 17. Sewage, treating; aÙrating; bacteriological processes; filtering.-Pipes or tiles for draining or aÙrating bacterial, percolating, or other filters are constructed of a semicircular shape with inlet channels of semicircular, semi-elliptical, or triangular form at their sides, as shown at 2, 3, and 4. The pipes are preferably provided with socket- and-spigot joints. Rows of the pipes may be placed at the bottom of the filter to prevent current at definite points.
GB190403945D1904-02-171904-02-17An Improved Pipe for Bacteria Beds, Filters and the like.
ExpiredGB190403945A
(en)