Improvements in connection with the proportional treatment of water by reagents

摘要

542,682. Mixing liquids in flow; servomotors. CANDY, F. P., and THOMAS, W. D. J. Sept. 19, 1940, No. 14362. [Class 86] [Also in Group XXIX] Apparatus for adding a reagent in proportionate quantities to a main stream comprises a meter 9 driven by the main stream which operates a pilot valve 10 which controls the supply of a pressure water from a pipe 13 to a reciprocating piston in a chamber 1 controlling in its turn the supply of pressure water from a pipe 8 to a reciprocating engine 11 by means of which the reagent is supplied.