Marietta daily leader. (Marietta, Ohio) 1895-1906, 1901-05-19

operated by steam; the engines for
this purpose being located on the
working platforms of the cranes. Each
crane can lift the heaviest boat that it
has to handle at the rate of forty feet
per minute, ani can also be revolved
by its hosting engine at the rate of a
revolution in one minute.
Bilge keels to reduce rolling are fit
ted to the vessel. Experiments in re-
cent years in our own and foreign ma
vies having demonstrated the great eff
ficiency of these keels in preventing
excessive rolling. The forward bilge
keels extend for length of about ST
feet, while those aft have a length of
about 70 feet.
Hydraulic gear is used in steering
the vessel, and can put the rudder
from hard apoIt to hard astarboard in
twenty seconds when the vessel is
moving at full speed. The valves of
the gear are connected by an electric
telemotor with the coming tower be-
side the mechanical connection with
the pilot house.
The electricity both for lighting the
vessel and operating the turrets and
hoists and minor purposes, is furnish
ed by eight 32-killwatt generating SETS
all having a pressure of so volts at the
terminals.
There are just four dynamo rooms,
one on each side of the vessel just for
ward of the boiler space, two general
ing sets being placed in each dynamo
room. -Four powerful search lights.
two of which are placed on the top of
the pilot house and two on the main
mast above the upper bridge,
will give warning of the ap-
pIoach of hostne vessels, and for night
signalling the ship carries two sets of
electric signalling apparatus.
The normal coal supply is 900 tons,
and the capacity OF the bunkers is
1000 tons. AS in other ships of this
type, the arrangement of the bunkers
is such as to afford considerable Incl
dental protection to the machinery.
The "Ohio" and her class are the
first battleships of the United States
navy in which water tube boilers were
provided. Steam for the propelling ma
chinery is supplied by water tube
boilers of the Thornycroft type plac.
ed in four water tight compartments.
There are three smoke pipes.
The two propelling engines are
rights and lefts in separate water
tight compartments, and are of the
vertical inverted-cylinder direct-act-
ing, triple-expansion type, having
four cylinders. The diameters of the
cylinders are as follows 35.5 inches
H. p, SO inches /. p. and 63 inches for
two low pressures by As inches stroke.
The collective |. H. P. of the main
engines with their air and circulating
is about 10000 when the vessel is
making a speed of eighteen knots. 1t
should be stated here that the "Ohio"
ranks next to the Georgia" class of
battleships in our navy in regard to
speed. The Georgia" and class
which will have the greatest speed of
any battleship yet authorized by Con-
gress are designed to make nineteen
knots.
A refrigerating room on the berth
deck forward furnishes cold storage,
and the ship is supplied with an ice
machine of the dense air type that can
produce the cooling effect of two tons
of ice per day.
Only such wood material as was
deemed absolutely necessary is used in
the construction of the vessel, and all
of this except the armor backing is
thoroughly fireproof.
The windlass, which is of the most
modern pattern, is operated by steam
and can raise both the bower anchors
at once. 1t is housed in an enclosure
just forward of the forward harbett.
There are four steam winches used
for hosting coal and general deck
purposes.
The construction of the "Ohio" and
her class was authorized by Congress
on May A, 1898 when the Spanish war
demonstrated the wisdom of much
greater increase of the navy. The keel
was laid on April %, 1899, and the CON
tract price of hull and machinery is
$3.50 900.
Her complement is 35 officers and
511 men.
wanted--A Husband
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