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John Ollis
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Individual
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Individual
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Publication of GB190410160ApublicationCriticalpatent/GB190410160A/en
10,160. Ollis, J. May 3. Rotary disc valves; plug cocks; actuating valves and cocks.-A rotary valve having a number of sectoral openings is revolubly mounted between two similarly perforated faces. It may be operated by a handle attached to its spindle, or by a pinion or worm-wheel gearing with teeth in its periphery. As a self-closing valve, it may be operated by a spring-controlled push k, Fig. 7. In a modification, the valve may be cylindrical.
GB190410160D1904-05-031904-05-03Improvements in Rotary Valves
ExpiredGB190410160A
(en)