DRAUGHT OF THE ENGINE,
FOR RAISING WATER BY FIRE.
—————
a
,
a
, The furnaces.
b
, B, the two fire-places.
c
, the funnel or chimney.
d
, the small boiler.
e
, the pipe and cock of it.
f
, the screw that covers and confines its force.
g
, a small cock, a pipe going within eight inches of its bottom.
h
, A larger pipe going the same depth.
i
, a clack on the top of the said pipe.
k
, a pipe going from the box of the said clack or valve, into the great boiler, about an inch into it.
l
, the great boiler.
m
, the screw with the regulator.
n
, a small cock and pipe going half way down the great boiler.
o
, O, steam-pipes, one end of each screw to the regulator, and the other ends to the receivers.
p
, P, the vessels called receivers.
q
, q, the screws which bring on the pipes and clacks in the front of the engine.
r
,
r
, R, R, valves or clack of brass, with screws to open and come at them upon occasion.
s
, the force-pipe.
t
, the sucking-pipe.
v
, a square frame of wood, with holes round its bottom in the water.
x
, a cistern with a buoy-cock coming from the force-pipe.
y
, a cock and pipe coming from the bottom of the said cistern.
z
, the handle of the regulator.
