Evening star. [volume] (Washington, D.C.) 1854-1972, 1858-08-19
.SIEAm aeAeHINERY.fQ scHEW,IKg.
SPEttER sLOOPS-0F,MkR AT THE y.
e. ,;,NAVY YARDS OF P0R TsMOiTH,N III,
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sxALEg rsoFosxL.. enaoissd PrsSessis Jor
Stsam Machinery Jor STew Propeller Shops a.
IN. oorapste oon.tIucsion Of the steam mschnT
s. Sssy Yards at POftsmoasn. N. H., New Yori.
following onditions =
The offers must De fora specific sum for putting
pas. Mt fees, and the department Will REQUIRE are
lease from the propnetors of any patented article
must state the time IN whoh the work will be CON-
pieted, and must be accompanied by the usual GUAR
TSe name Of he esta.hen, in which tn. work
is to be executed must be stated The details q
be left with the party whose proposition may be ac-
oepted as combining the greatest NUMBER OF e.San
ton. READINGS. Of access for sdjastmsnt when in
operation, and not being subject 10 derangement ID
to ,as Se eS
power whep required soas TO insure high speed Tor
As many days As possible, while at the sane time
speed with great economy Of fuel, that long voJ-
ages NAY be psIf.rmses With one supply Of cal
bidders TO guaranty the results proposed 10 be ao
compl shed 5y their plans and to specify those re-
lst. Theamount Of horse power which the engines
and boilers will be able to develop for five days con-
secutye ely when driven to their highest capacity,
20 be measured on bOsrd he vessel by the indicator,
the rate Of IS 600 pounds lifted one foot high in
and at least so revolutions per minute.
The cohsum ptiCn Of coa!s per horse power per
| square lnch on the piston necessary to work the
engines at the above We ocIty the screw being dis
the line If must not exoesd * pounds PEI
square inch OF piston by indicator ulagrani.
:p ne without Gdsn sS Sc the total Weight Of
tons Tor machlr cry, eppendages, Dolers abd watel
tne oGnss SUs. ' gu ire ensnes and boil
eIs TEe boilers to be of IRON Of the multItuou "a
kind with brass tubes and with IN ts
boilers, q surface condenser of the most approves
kind will be required. -
rhe propeller with the connections for hosting !
for at least 30 revolutions per minute and ior the In
| meIsed amdshlp section OF the vessel.
| The pumps. apparatus for venilstins. and appurr
t.nances Of j. kinds Necessary for the rerfe S
The coal huHkers shaft passage Two stsssr,. HI
| IRON bulk heads, dlst ling apparatus for freS
Ions per day, nnd tools ana pieces ne
cessaIy and satisfactory for an efficient cruIsin,
simon. and a list orthem must be furnished.
The woof and oarpen erwork except the boInI
the vessel for the Iecep ION Of the machinery. boil
ets, and ndsges will be provided at the pens
Of such facilities as 1t may have for hosting tn
| heavy machinery on board.
For the scconimodshon of the entire steam ma
elmer, and the fuel there will be allowed IN the bod,
ni ule snip, the entire space under the spar deck
t senc!nE at Il feet a6ait the nam last AM
L
| within this space II is expected to carry coal TO
hive day IS steamlns at the max Imum speed.
fuel viii be stated also the weight OF the maohinery
COAL boilers water in them. shaft. propeller and ap
must Dot ex coed 4 S tons OF ! liO pouads.
The distance from the after side Of the malnmss
about feet and the d;stanee batVeen The orWaT
and the after stern posts will be seven feet. Tn,
under the propeller viii be u feet inch.
The proposal must be accompanied by full spec n
the centre of gravity OF the mschinery. boilers
&C., marked on them giving also the capacity OF thu
delivery valves. and of air pump and outboard de
livery valves, space for steam above the water lint
ameter. pitch. surface, and kind of propeller an,
Sther principal points, tnat comparisons can readily
The terms Of pay ment will be that, when one hal
OF the materials and labor provided for the con
iIsot shall have been completed to the satisfaction
| q part of the whole amount Of the contract. WheI
the whole snail have been complete and ready fo
erection In the ship further payment otis will b,
made, and when a satisfactory trial of seven con
secutIve days shall hIvebeen made, then flit he
pay ment OF s; and when the ship shall have per
formed satisfactorily at sea for PERIOD of tire,
months, the remaining sum shall be paid. The re
pairs necessary during this period from dcfectIv,
| tho contractor.
ItIs to be understood that If the weight and OF he
con"lt ons specified IN the contract be not complied
with. The department il 10 be at liberty to reject tn,
of taking u out OF the ship and to refund whatev
amount of the contract price may have been paid.
| PROPOSALS will also he received at the came time
and Place Tor the steam machinery and appeadaEes
and placing the came on board each of the screw
slooDs of war building at the navy yards at Boston
Phlladephis, and PensacOls, under the speclhoa
tons ard conditions above stated, with variatoni
| IN the following particulars, VIZ:
lst Horse power 80 at, at least, 90 revolution,
per minute.
I'd The total weight for machinery, APPENDICES
boilers and water IN them. bunkers, tools, spare
pieces, and coal must not exceed $40 tons OF %
pounds each. The ,ength occupied by the engines
ard Goliers Will commerce IA feet ahaft the main
mast and thence extend forward distance of IS feet
The distance from the after side of the maInnas,
TO the at er slde of the forward post Will be
about 10 feet. TIE depth from The lead alter line
feet inches.
Steam engine ma ufscturers who desire TO bid car
Obtain COPY of the ion of any one of the ycs-
sells upon making application to the department.
ISAAC TOUCtY,
-ly - laWtSep8 Secretary OF the Navy.
- mo. 6c6,l