The national Republican., 1862-07-22
DAOPOsALs FOR PADDLE-wHEEI.
L STEAM MACHINERY FOR THE UNITED
STATES NAVY.

THE NAVY DEPARTMENT will, until the 2sth
Day Of July, receive sealed proposals. for the con.
struotion Of seam machinery for paddle wheel
Each steamer will have one Inclined engine o not
leg than is9 csbie FEET d.plsoement Of piston per
inches. The fame to be of yellow Line, strongly
which the conlensing surface will be composed OF
drawn brass tbes five eghths inch outside diane ter;
tube plates ant followers OF brass total OF
pump (con.ds,ed as single actingl 25 cubic feet; ca
paoity Of circulating pump considered as single ao,
ng % sueio is inlet and outlet pipes to pumps to
pumps pistons, receiving and delivery valves Of
pumps 70 have net area Of opening Of not less than
one one and . half time the area Of the pumps pstonsi
The cylinder Is to have brass balance poppet
valves Of II dnd IS inches diameter valve ssst Of
cutoff. The whole valve gear to be finished and ar.
rsnTsd for working hooked on back as well as
The crosshad to be of wrought iron and finished.
The cranks tcbe Of wrought iron turned and planed
The shaft to ee Of wrought iron, turned. The out
board journal TO be feet In length.
Allcylinder covers valve chest and pump bonpets,
with their 6ols and nuts, and links and connecting
bs piosdsd Subs ieet @ capacity % p Valves :" gum
and to have net opening of twice the capacity OF
The pumps are to be worked by wrought iron
arms, turned apd planea and secured upon TUNED
aroughti,on haft, which is to be worked from the
main orosshesdby finished links, and wroushtton
The paddle; Wheel e to be oveEhuns, to bs Of
wroush. iiSn and 2e feet inches In extreme diam M
There ere to b two Martin fcilers placed opposite
each other, withthe tire.room between Leigh OF
boiler IL feet, With 10 feet Elk inches height about
feet inches; tocontain five furnaces each; lhe fur
nsces to be threeieet wide leugth of grated feet
inches; total grSte surface 165 square fed total
heating kurfaca nj han faef
with the exception Of the bottoms, 10 be of SIC inch
pate bottoms, furnaces, and air pits Of threeeigLth
hydro'tatic te't pressure ofsx,y pounds pei square
zach boiler is to have a Ne. a. Dimpfsl blower
blowing into the back Of the ash pits.
All the detail finish quality Of materials, anl work
nanship to b 'tcla.s proportioned for Sorking
and
BY the Department for paddle wheel steam nhchue
ry There viii also be furnished the tools duplicate
pieces Instruments, &c, required by those sre,idca
The proposals. will state the n,mss of the bidders
IN full and Of their suretes the gross sum, cevslng
ever, on account oi the machinery for which they
propose to frni:h It in the vessel, complete Md
ready for tsa ping discriminating between the Two
from date Of contract in which they will guaranty to
rsy to wssy oas
ier II the vesse Is at the same port, and motth
earlier II at anoher port II not ready, twenty ins
days or one morfh according to the case will benl
lowed for competion from date OF readiness
The contract will embrace the usual conditions,
and payments vii be made In the usual manner as
the work progresses.
The proposals are to be endorsed " Proposal, for
Paddle wheel Steam Machinery" to distinguish
them from other business letters
The De arinent reserves the right to reject any
oral or al q the n R proposals made under this sveise
No proposalsw will be considered except from pro.
prietors Of marine engine building establishments.
jyl6 -"