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Expired
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Otto Friedrich Burchard
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Individual
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Individual
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Publication of GB190223049ApublicationCriticalpatent/GB190223049A/en
23,049. Burchard, O. F. Oct. 22. Differential pumps; suction reservoirs.-A differential pump is constructed so that the cylinder a is snrrounded by the enlarged end of the suction pipe, the annular intermediate space forming an air vessel. The plunger. bucket, and bucket valve are secured together by a single bolt g, to which the lower end of the actuating connecting-rod is attached.
GB190223049D1902-10-221902-10-22Improvements in Pumps.
ExpiredGB190223049A
(en)