Gĭf'fard In-jĕt'or

(Mach.) An instrument for supplying steam-boilers with water, and operated by the direct action of steam on the water;—so called from the inventor.

☞ The steam enters from the boiler at A, and the water from the tank at E, their amount being regulated by the handles D and C, respectively. L is the pipe through which the overflow occurs at starting. The water, heated by the steam, all of which it has condensed, enters the boiler at B.