Modern instruments and methods of calculation : a handbook of the Napier Tercentenary Exhibition (1914)
Horsburg, E. M. (Ellice Martin), Napier Tercentenary Exhibition (1914 : Edinburgh, Scotalnd) · London : G. Bell · leaf 203
Fig. 15. pressure cylinders of compound engines bear to each other, and the pro-portion the mean bears to the initial pressure. (Fig- I5-)12. The Essex Calculator for the Discharge of Fluids from Pipes, Channels,and Culverts, designed to enable the engineer to ascertain rapidly and withfair… … Fig. 16. It can also be used to find the velocity of discharge in different forms of channel.The calculator is adjustable to the different formulae in use, a scale for thevalue of c, the variable coefficient in Chezys original formula V= Jrs, beingincluded on the upper slide and used in conjunction…
