The national Republican., 1862-07-25
DROPOBALy FOR PADDLH-W WHEEL.
L STEAM MACHINERY FOR THE UNITED
STATES NAVY,

The NAVY DEPARTMENT will, until the esth
struotion Of steam msohiusry for paddle wheel
steamers
Each steamer will have one Inclined engine of not
less than 100 cubic feet displacement Of pston Per
inches The frame to bs OF yellow pine, strongly
knesd, bolted, and bfaced
There viii be . sswells surface condenser, in
drawn brass tubes I've elghths inch outside diameter
tube plates and followers Of brass total area Of con-
SsnsDE Ssp sPSSS 81 a
pacity of circulating pump (consdersd single
ng) Is cubic feet inlet and outlet pipes to pumps to
pumps pIsions; rsosivins @ and delivery % valves Of
one and half time the area Of the pumps pistons;
The cylinder Is to have brass balance poppe.
valves Of II and IS inches diameter; valve seats OF
Sut.c The whole valve "a e. gear to Ss anshsd and ar
ranged for working hooked on back rs well AZ
The crosshead to be of wrought iron and finished
The cranks to be Of wrought iron turned and paned
The shat to be Of wrought Iron, turned. The out
board journal to be feet in length. -
An,sylinder covers valve chest and pump bonntts,
with their bolts and nuts, and links and Connecting
bs plosidsd Of Cubic feet capacity s Valves q gum
and to have net opening Of twice the capacity Of
The pumps are to be worked by wrought. iron
arms, turned and Planed. and secured upon turned
wrought. iron shaft which Is TO be worked from the
main erosshesd BY finished links, and wrought Iron
wrought isSn and 20 feet inches In extreme diam
inches long, and 10 inches Wide.
There are 70 be two Martin boilers placed opposite
each other, with the fire room eetyeen Length Of
feet inches; to contain five furnaces eaoh the fur
naces to Be three feet wide length Of CRATES feet
heating % not iess than ss feet Shells
with the exception Of the bottoms TO be Of bl6 inch
plate bottoms furnaces and air pits ofthree eighth
hydrOstato test pressure ofsxty pounds per square
Each boiler is to have a No; az Dimpfei blower
blowing into the back Of the ash. pits.
All the detail finish quality Of materials, and work
manship, to be proportioned for working
Sonior%sSis 10 the previously % printed
BY the Department for paddle.wheel steam machine
ry There will also be furnished the tools duplicate
pieces, instruments &c. required by those speoitcs
The proposals will state the names OF the bidders
and hs sum-
ever, on account OF the machinery for which they
propose to furnish II in the vessel complete and
IN sss q
ing and erecting 1t in another port and the time
from date Of contract in which they will guaranty to
complete II in the vessel ready for sleaming provided
the vessel Is ready to receive 1t twenty one DAYS ear
lier IL the vessel h at the same port and one month
s.ys not
lowed for completion from date OF readiness.
The contraoi will embrace the usual conditions,
and payments will be made In the usual manner rs
the work progresses.
The proposals are 70 30 endorsed q Proposals. for
Paddle wheel Steam Machinsry," to distinguish
them from other business letters.
The DE partment reserves the right to reJeot any
or all Of the proposals made under this advertise
ment II, In ts opinion, the public interest requires,
No proposals will be considered except from pro
prietors Of marine engine building establishments.
jyl6