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Expired
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Frederick Thould
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Individual
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Individual
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Publication of GB190400849ApublicationCriticalpatent/GB190400849A/en
849. Thould, F. Jan. 13. Hand-pumps.-The piston e, e<1> of a hand-pump shown is actuated by means of a lever a' pivoted to the sides of a slot formed in the delivery chamber b<1> above the barrel f<1>. The barrel is placed horizontally, and is provided with inlets d, d<1> at each end and with valves, so as to render the pump double-acting.
GB190400849D1904-01-131904-01-13Horizontal Double Action Lever Pump
ExpiredGB190400849A
(en)