Improvements in or relating to Cocks, Taps or the like for Transmitting Fluids.

摘要

18,456. Allen, M. Aug. 12. Plug cocks.-A rotary plug cock having an elliptical passage b through the plug a has the inlet and outlet passages d adjacent to the plug of a corresponding shape and the said passages gradually change to a circular form at their outer ends of approximately the same area as the passage through the plug.