Evening star. [volume] (Washington, D.C.) 1854-1972, 1858-08-04
NAVY DEPARTMENT Julx ss N,

H.
SEALED PROPOSALS, endorsed i" Proposals Jor
Steam Machinery for ScTeW Propeli,r Shops a.
o'clock, p. m OF the elghl OF September next for
thr compete construction OF the steam mschln' ~
eaoh * the screw sdops Ssd in ~ 1r
:. Navy Yards at Portsmouth, n. H., New YORK,
I'M soe phls, and 6osport, IN accordance with the
The oilers must be for specific sum for putting
tne whoe IN sSccessiol operation, must include all
lease from the propno'ors Of sny patente article or
n.r used ~ OF shout tie acelnery aid
peted, and must be accompanied by the usual uar-
The name OF the establishment in which the work
- 10 Oe executed must be stated The details Of
the deslsn and arranEemsnt of the machinery will
be left with the party whose proposition may be
cepted as combining the greatest number of aavan
t,9a seSspHs m yisg cost simplicity OF oonstruo
operation, and not being subject 20 arrangement IN
rne WORKING parts u being the object Of me depart
power when required so as TO insure Ugh speed for
az many days as possible, while at the same time
they Will be able to propel the vessel at moderate
speed with great economy Of fuel. that long voy-
ssss NAY be performed With one supply of coal.
bidders TO guaranty the results proposed 10 be ac-
oompl shed BY their plans and to specify those re-
LIST. The amount Of horse power which the engines
and boilers wall be able to develop for i've days
secutlyey when driven up to their ghest cspacit.
to be measured on board the vessel by the Indicator
minute, and to be not less than l.00o horse power
and at least 80 revolutions per minute.
The cohsuH ptlol OF Goals per horse power per
hour must be stated. The pressure IN pounds per
square inch on the piston necessary TO work the
engines at the above velocity. the screw being dis
connected aud the engines without load, except
the line If siafting, must ~ pounds Der
square inoh OF piston by indicator diagram.
I'd. The quantity of coal which can he slowed an
the ship without exceeding the total ght of 4O6
tons Tor machinery, sppendases, boilers and water
within the length oocu pied 6y the engoes and boII
ers. The boilers 10 he of IRON of the mnltItubuIsr
Pc and, 1t is intended to use fresh water an the
boiler q surface condenser Of the must approved
Tire propeller with the connections for hosting n
wall be OF composition, 10 be properly propOrtIoned
mersedSnldshIp section 81 the vessel.
The pumps, apparatus for venilatinE, and appur-
teances of all kinds necessary for the perfect work
ing OF the whole To be of he most approved kinds
The coal bunk ers. SHAFT passage. Two atbwartship
water, from which can made moi less than 500 al
Ions Per Gay, and the tools ana Duplicate p,eces ne
steam sloop of war. must be included ia the pTopo
sIIIon. and u list Of them must b. furnished.
The who'd and oarpen eT woik, except the boiing
out the dead wood tor the shaft necessary to saapt
the vessel for the reception Of the machIrey boIl-
of the Navy Department aad Il viii permit The use
OF such fac'htIes as t may have for hOlsfing the
For the accommodation Of the entire steam ms
ohnery and ale fue there vii Ice lowed IN the no "
COZ msncIns at Is feet abaft The main last. and
thence extending forward \ distance Of 81 feet.
w ithln this space 10 Is expected 10 carp coal for
i've day . steamIns a the mum speed.
10 the sPecif cailons, the dsIiy consumption of
ooa boilers, water IN them, shaft propeller and ap'
pendages, with tools ard spare work. all Of which
must not exceed arc tons Of 2. 2iO pounds.
The distance from the after side OF the malnmast
to the after aide OF the forward stern post wI he
and the after stern posts will be seven feet The
deIth from the losd water line Ia the top OF the
under the propeller will he " feet inch.
The proposal must he accompanied by full speech
cations and general drawings, having the position
Of the OF gravity OF the mschinery uoIIefs,
IL ~ etfN
steam cylinders, pressure at steam, of foot and
livery valves, space for steam aeve The water Inc
ofthe boilers the hire and CRATE surface sso the DIT
ameter, pitch. surface, and kind of propeller and
other principal points, that comparisons readily
be made.
OF the materials and labor provided for In the
tract shall have been completed To the satisfaction
i part Of the whole amount Of the contract. When
the whole shall have been competed and ready for
erection In the ship further payment Of l6 viii ha
made, and when a sfactoTy IIal of seven con-
secltIye days shall hsvebeen made, then a further
payment of 6; and when the ship thail have per
formed satisfactorily at sea for period of three
months, the remaining sum shall be paid. The
workmanship or materials wll be at the pense OF
the contractor.
IL is To be understood that If The weight and az her
CONDITIONS specified an the contract be not complied
with, the department is 20 be at berty reject the
of taking out Of the ship and 10 refund whstey1r
amount OF the contract prIce may have been pad.
Proposals will also he received at the same time
ana place Tor the steam machinery and
and placlng the same on board each of the screw
soops-of war building at the navy yards Boston,
Phllade phla, and PensacolN under the specihcs-
tions and conditions above stated, with variations
In the FOLLOW Ing particulars, VIZ:
ISL Horse porer $50 at at least, 80 revolutions
per minute.
I'd. The total weight for machin ery. appendages,
boilers and water IN them. buRkeTs, tools. APP re-
pieces. and coal must not exceed Sl0 tons of go
pounds each. The length occupied by The eHglnes
acd boilers will commence IL feet Giaft the main
and thence extend forward distance IL 40 feet
The a stsuee from the after side of the malnmast
to ths affeTsIde Of the forward ern poet will he
about IS feet. The depth from the load ater line
the top OF the keel under the propeller wal be
feet inches.
steam ens ufscturers who desire 20 bid can
Obtain copy of the ION of any one Of tie ves-
sells upon making application TO The dep artmeff.
ISAAC TOICtN,
jy a-lawtSep9 Secretary of the Navy.