Daily evening star. [volume] (Washington [D.C.]) 1852-1854, 1854-07-10
STEAM MACHINERY FOR U. S. STEAM
.. r.. CRIGATES

NAVY DRPARTARNT, July ], 1854.
DROPOSITIONS will be received at this depart.
ment until the first day of August next for the
complete construction Of the steam machinery and
appendages, and placing it on board of five au1ili
ary screw steam fgates to be at least I55 feet in
length, and Of 00O tons measurement, one Of which
building at each Of the United States navy yards
at Boston, New York, and Philadelphia, and two at
Norfolk. ..- 81
Each of must be for specific sum, and include
all patent fees for any arrangement that may be
proposed, and must state the period within which
the work can be completed.
The boilers to be of iron, with telescope chin.
neys; the propeller with the connexions for hoist
ing up of composition. The fresh water condensers
machinery for hoistng, ventilating, pumps, &c,
With appurtenances OF all kinds, must be these
most approved for m 'rine engines. The tools and
duplicate pisces necessary for efficient cruising
ship-otwar, q list Of which must accompany the
ded. ''
All the wood aud carpenter work necessary to
adapt the vessel for the reception of the engines,
boilers propellers &e, will be at the expense of the
Navy Department, AID it will furnish the usual IA
cilities and labor for hosting the machinery on
board.
For the accommodation Of the entire steam ma
chinery with fuel for ten days consumption, at the
average speed, at load draft Of water of % fe't in
Guiding the keel length not to exceed 60 feet
be allowed in the body of the ship, including the
tire space under the birth deck. The grestest
breadth Of this space under the beam will be II #
and the height from the timbers to the bottom of
the beam II feet the area Of the section being 662
square feet.
The weight Of all the steam machinery, water ia
the boilers and coal within the space giveG, and in
cluding the propeller and sh: fl, with appeniages Of
all kinds and spare pieces has been estimated at 35
tons OF 2,2iO pounds OF which 900 tors is for coal
The distance between the main stern post and
the rudder post may be six feet. if that length is
cessary for the propeller in fore ana aft direction,
and the depth from the load water line to the top OF
the keel under the propeller will be Il feet The
length from the mainmast to the sternpost will be
about i12 feet. The area Of the grsstest immersed
transveIsed section to the deep load line will be s65
square feet.
As auxiliary steam frisates the spars and rigging
will be those Of frgate of the first class, Of S0O
tons measurement.
The particular arrangement of the mac 4inery will
be left with those whose propositions may lie accept
ed as combining the greatest number Of advantages;
tbs desire Of the department being to obtain the
greatest speed and power with the most economical
consumption Of fuel, which the space available for
that purpose will admit
The terms Of payment will be as follows when
onethird of the work provided for by the contract
shal have been completed to the satisfaction of the
department. there shall be payment of one-ffth of
the whole amount of the contract; when two-thirds
Of the work shall, in like manner, be completed,
there shall be further payment OF one fifth when
the ship shall have made trial trip, satisfactory to
the department. of not less than one week at sea,
there shall be further payment of one fifth; and
when the ship hall have been in possessrn of the
department, and performed satisfactorily for six
months tne remaining sum snail De pald; the re.
pairs necessary during this period, from defective
workmanship and material, being at the expense Of
the contractor.
Each proposal must specify the ship for which
the offer s made, and must be accompanied by full
and complet, specifications and drawings, which, if
desired will be returned 0 those whose Offers may
not be accepted. 1t must also be stated at what
tablishment the work is to be done.
Each proposal must be accompanied by guaran-
tee that the contract when awarded, will be faith
fully performed and the successful bidders will be
required to enter into security for that purpose In
the of threefou the amount OF the contract
j. G. DOBBIN,
iu l-OaWflAun of fha