A recording device for indicating (a) the flow of water in pipes, (b) the speed of boats (1909)
Baldwin, Frank Boyd, Hiveley, Oscar George · leaf 14
thisconnection ¥/ould be suitable, and so, by having the same person doall the wiring in the testing and in the construction of the appar-atus, good and efficient Joints were secured. After the mercury-pot and irerciiry and water columns werefastened to the scales, a pipe system was planned. This… … 4.
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