Evening star. [volume] (Washington, D.C.) 1854-1972, 1858-08-18
SPEtLEk sLooPs6F;MA Ar THE b.
=. NAVY YARDS OF PORTSMOUTH, NJ H.

NAVY DEPARTMENT, July ss. Isss
Sftdm Machinery for Scre,c Propeller Shops Of
O'clock. p m, of the eigh OF September next, for
III oomp eve constructIon OF the steam machlnt ~
each Of the screw ,loops of-wer bliidins at the o.
=: Nayy iaEds at Portsmouth, n. H., New York,
Pnia, ana "osport In accordance with the
The offers must BE fora specific sum for putting
patent fees. and the department Will require q re-
lease from the proPnetors Of patented article o.
must state The time which the work vail be com
peted, aud must be accompanied by the usual guar
The name Of the establishment in which the work
10 to be executed must be stated. The details Of
be ieft with the party whose proposition may be
cepted as combining the greatest number OF ssvan
ton, readiness of accsss for adjustment when IN
Operations and not being subject 10 derangement
ment to procure ~ " hloh can develop treat
power when required to insure high fpeed Tor
they viii be able to propel the vessel st moderate
speed with great economy of fuel, that long voy
With this view, the department viii expec, the
bidders TO guaranty TIE results proposed to be
suits nader the following heads:
LIST. The amount vi horse power which the engines
secutyely when driven no their hi capacitv
to be measured on hoard the vessel by the indicator
minute, and to be not less than 1000 horse power,
and at least 30 revolutions per minute
| hour must be stated. The pressure IN pounds per
| square Iuch on the piston necessary to work The
engines at the above velocity the crew being dis
| connected the engines without a load spt
the line shsfting. must not exceed ~ pounds per
| sausre inch of piston 10y indIcstor diagram.
| I'd. The quantity of coal WHOM can Ue slowed In
the ship without exceeding the total weight of 4o6
| tons Tor machl"erJ, sprendases, boilers and water
| within the length occupied by the engines and boil
| ers re boilers 10 be of of the muIttubulaI
/ kind, with brass tubes and with tee. copic smoke
pc, and It is intended to fresh water in the
| kind will be required.
Tne propeller with the connections for hosting n
will be of composi on to be properly proportioned
fr at least evolutlon. per minute and for the i'm
| meTsed amdshIp sectOn OF the vessel.
tensnces Of II kinds necessary for he perfect work
Ing OF the whole to be of hs most appToved kinds
IRON bulk heads. a DIST ling apparatus for fresh
water, from which cfn be made not less than 500 sal
Ions per day, and the tools du plcate pieces ne
| cessary and satisfactory for tficient cruising
steam soop Of war must be included In the propo-
| slt,on. ana a list of them must be furnished.
The wooi and oarpen work, except the borine
out the dead rood Tor the shaft necessary adapt
ers. and sppendages will be provided at the ex pense
ofthe Navy department and IL wall permit the use
OF such iaeilties as 1t may have for hosting the
| For TIE accommodation Of the entire steam ma
chInery and the fuel there will he allowed in the bOdy
Of the ship, the entire space under the spar deck
co" penclns at Is feet abait the main nast. and
| thence extending forward a distance of 80 feet
| five day s steamIng az the max Imum speed.
| Ia the specifications, the daily consumption OF
fuel will be stated also the weight Of the machinery
coal, boilers water ia them, shaft, propeller and
must hot ex coed 90 tons Of 3,2iO pounds
The dIstsnce from the after side of the maIHmas Il
about ~ feet, and the distance between the forward
| and the AFTER stern posts will be seven feet The
from the load water line to the top OF the keel
under the propeller will be Y feet inch.
| The proposal must be accompanied hy full specIh-
| cetions snd general drawings, having the position
| a. machinery. Dt,lle AZ
&c. msrHed on the giving also the capacity of the
team cy nders, pressure Of steam, Of foot and
delivery valves, and OF air pump and cupboard de
LIVERY valves, space for steam above the water line
ofthe boilers the fire aud CRATE surface also the d.
anfeter, pitch. surface, and kind of propeller and
other principal points, that comparisons can readily
| be made.
The terms of pay mert W III ba that when one hail
OF the materials and labor provided for IN the con-
of the dspsstment. there will be made a paymeut OF
| = part 81 the whole amount Of the Contract. When
erection IN the ship further payment OF I-6 wifi he
| made and when a satisfactory trlal of seven con-
secutive DAYS shall havebeen made, then a further
| psymsnt of 6; and when the ship shall have per-
formed Satisfactorily at sea fer pefIod Of three
months. the remainIrg sum shall be paid. The re-
workmans hip or materials will be at the ex pense OF
It's to be understood that If the weis Int and o. her
onrItions specified IN the contract be not couplsd
with the department To DO At liberty to reject the
Whole machinery the contractor 10 be at the
OF taking out OF the ship and to refund whatever
| amount of the contract prlce msy have been paid.
| Proposals. will also he received at the same time
and place for the steam machinery and peEdag es
and plscng the same on board each OF the screw
| phladelphis. and Pensacola, under the spscIfca-
tIons and conditions above stated with variations
| IN the following particulars, viz:
LIST. Horse power 75D at, at least, so revolutions
per minute.
| I'd. The total weight for machinery, appendices
boilers and water IN them. bunkers, tools. sPtre
pieces and coal must not exceed $40 tons of 24O
AID toilers will commerce. IL feet ais!t the HAHN
ms and thence extend forward distance Of 90 feet