The national Republican., 1862-07-26
jy 23--eodtAug9
DROPOBALs FOR PADDLE-wIlEEi.
L STEAM MACHINERY FOR THE UNITED
STATES NAVY

THE NAVY DEPARTMENT will, until the 18th
day Of July, receive sealed proposals for the con.
struotion OF steam machinery for paddle wheel
Each steamer will have one Inclined engine of not
less than 100 cubic feet displacement Of piston per
inches The frame to be Of yellow pine, strongly
kneed, bolted, and braced
There viii be . sswell's surface condenser, in
drawn bras tubes i've eghths inch outside diameter
tube plates and followers Of brass total OF
pump tocnsidsrsd Is single sotins Is cubic feet; ca
pacy of circulating pump lconsidered single sct
ng) 26 cubic feet inlet and outlet pipes to pumps TO
have net area Of not lees than two thirds Of the
pumps plstons receiving and delivery valves Of
pumps TO have net area Of opening of not lees than
one and half time the area Of the pumps pistons
The cylinder is to have brass balance poppel
valves Of II and IS inches diametsr valve seats Of
cutoff The whole valve gear to Be finished and ar,
ranged for working hooked on back as well as
The crosshead to be Of wrought Iron and finished.
The crank to be Of wrought iron turned and planed
The ehaN TO be oi wrought ircn, turned. The out
% Dc rect IN
With their bolts and nuts, and links and connecting
a
and to have net opening Of twice the capacity Of
Tie pumps are to be worked by wrought.iron
arms, turned and planed, and secured upon turned
wrought.iron shaN, which Is to be worked from the
main orosshead BY fnished links, and wrought'iron
wrought lron, ana % feet 9 inches II exireme diam
stes Paddles 70 be twenty four In number, feet
There to be two Martin boilers placed opposite
each other, with the frs.room between. Length OF
feet inches; to contain five furnaces each; The fur
naces to be three feet wide; length OF CRATES feet
,ssi tssS 1S
with the exception Of the bottoms TO be of sic inch
plate bottoms furnaces and air pits ofthree eighth
hydrostato test pressure ofsxty pounds per squarr
Each boiler is 10 have No. - Dimpfel blower
All the detail finish quality Of materials and work
manship, to be first class proportioned for working
boiler pressure of 40 pounds per SQUARE inch and
by the Department for paddle. wheel steam machine
ry There will also be furnshed the tools duplicate
pieces, Instruments &C.. required by those speeiica
The proposals will state the nsmss of the bidders
In ull and Of their suretles the gross sum- covering
ever, on account OF the machinery for which they
propose to furnish It In the vessel, complete apd
ready for .tesmny discriminating between the two
from date Of contract in which they will guaranty to
the vessel s e.ay 70 s
lief IL the vessel 70 at the same port and one month
earlier II at another port II not ready, twenty
days or one month according to the case, will be al
lowed for completion from date OF readiness.
The contract will embrace the usual conditions,
and payments will be made In the usual manner as
the work progresses.
The proposals arc TO be endorsed " Proposals for
Paddlewheel Steam Machinery" to distinguish
them from other business letters.
The Department reserves the right TO reject any
or all Of the proposals made under this adNertise
ment, IT, In is opinion, the public interest requires
No proposals will be considered except from pro.
prietors Of marine engine building establishments.
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