HYDRAULIC a.
ve at a, the momentum of the current thus suddenly checked forces part of it into the air chamber b, and up the pipe c, its return being prevented by a valve at the entrance to the air chamber, while the dropping of the valve a by its own weight allows another rush through the main pipe, and so on alternately. -- Hydr…
IMPERIAL a.
r; imperial tea, etc. Imperial bushel, gallon, etc. See Bushel, Gallon, etc. -- Imperial chamber, the, the sovereign court of the old German empire. -- Imperial city, under the first German empire, a city having no head but the emperor. -- Imperial diet, an assembly of all the states of the German empire. -- Imperi…