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William Henry Lawrence
Robert Kennedy
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Publication of GB190716930ApublicationCriticalpatent/GB190716930A/en
16,930. Lawrence, W. H., and Kennedy, R., [Burrell, L.]. July 24. Actuating piston valves. -A piston valve G of the form shown in Fig. is described in connexion with a cow-milker. The valve is actuated either by a cam 45 driven by clock-work or by an intermittently excited electro-magnet. A piston valve is also shown at 22, Fig. 5. This valve is actuated by air pressure.
GB190716930D1907-07-241907-07-24Improvements connected with Suction Milking Machines.
ExpiredGB190716930A
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