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 72
Diaphragm No. 8, which was a tin diaphragm six inches in diameter. Its surface was flat and was without corrugations. Made of 32 eapre tin. Mercury column Water column. Difference of Gage Pounds per Pounds per Pressure. Reading. square inch. square inch. Lbs. per Sq. In. Degrees, 7.90 7.90 0.00 1… … U. Cr 1. S. S. FOHM 3 33. Data Sheet No. 7.Data taken from tests on Diaphragm No. 9, which was a tindiaphragm aix inches in diameter, and of No. 34gage. Mercury colTimn. Water column. Difference of Gage Pounds per Pounda per pressure. Readin aquare inch. square inch. Lbs. per Sq. In. Degree 6.00…
