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Albert James Smith
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Individual
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Individual
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Publication of GB190419288ApublicationCriticalpatent/GB190419288A/en
19,288. Smith, A. J. Sept. 7. Gully traps.-A gastight cover i hinged at k is placed over the drain f, and the opening d between it and the partition c is closed by a flap valve h, which prevents the escape of sewer gas during the cleansing operations. The grid l hinged at m is retained by catch p, having a pivot q and stop r, and is released by depressing a projection t on the catch. The grids are formed with engaging tailpieces n, o, so that both grids are locked by a single catch.
GB190419288D1904-09-071904-09-07Improvements in Street Gulley Boxes, Sinks or Traps.
ExpiredGB190419288A
(en)