392
EXPLANATION OF THE PLATES.
PLATE LVI. b.
This plate shews a plan of the engines of the Dartford.
E E, The cylinder lids or covers.
C C, The cranks.
D D, The steam-tight casings or trunks.
G G, The stuffing boxes.
H H, The connecting rods.
a a, Slide valve boxes.
c c, Starting handles.
e, Hot well.
ff Discharge pipes.
hh, Eccentric rods.
s, Air pump.
k, Hand pump.
u u, Bilge pumps.
v v, Feed pumps worked by levers connected with the cross head of the air-pump rod.
w, Platform on which the engineer stands to start the engines.
x x x x, Foundation plate, cast in one piece and firmly secured to the four sleepers.
y y y y, This plate measures 13 feet 8 inches athwartships, and 8 feet 6 inches fore
and aft, which is the space occupied by the two engines. The cylinders are
each 42 inches diameter, and the pistons have a stroke of 3 feet 8 inches; the
paddle wheels are 18 feet diameter, and 7 feet wide ; the load water draught
of the vessel is 8 feet 9 inches; the mean revolutions of the engines 26.
PLATES LVIL, LVIIL, and LIX.
FORTY-FIVE HORSE POWER ENGINE CONSTRUCTED BY W. FAIRBAIRN AND CO.
™ , TTiTT »Fig. 1. Elevation of engine.
Plate LVII. \ „ .. 6
2. Plan of ditto.
{
LVIII.I
LIX.
3. Front elevation.
4. Back dittò.
5. Cross section.
V
The letters refer to the same parts in all
the views.