Daily evening star. [volume] (Washington [D.C.]) 1852-1854, 1854-07-14
STEAM MACHINERY FOR U. s. STEAM
FRIGATES.

NAVY DEPARTMENT, July I, 1854
DROPOSITIONS will BIZ received at this depart
L 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 auxii
ary steam igates, to be at lesst 255 feet in
length, and of 1900 tons measurement one of which
is building at each Of the United States navy yards
at Boston, New York, and Philadelphia, and two a,
Neriolk.
Each offer 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 ca n 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 hoisting, ventilatins, pumps. c.,
with appurtsnances OF all kinds, must be those
most approved for m arine engines. The tools and
duplicate pieces necessary for efficient cruisin
shlp-ofwar, list Of which must accompany the
proposal, and also the coal bunkers must be nclu.
ded.
All the wood and carpenter work necessary to
adapt the vessel for the reception of the engines
boilers, propeers, Ac, will be at the expense of the
Navy Department, AID it will furnish the usual fa-
cilities and labor 70, 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 % fest
uding tbs keel length not to exceed 90 rect can
be allowed in the body of the ship including the
tire space snder the birth deck. The greatest
breadth of this space under the beam will be Al fl
and the height from the timbers to the bottom of
the beam II feet; the of the section being CO.
square feet, ....-
The weight Of all the steam MACHINERY, water in
the boilers and coal within the space given, and in
cluding the propeller and shaft with appe ndsges of
sl kinds and spare pieces, has been estimated 135
tons of .2i0 pounds, which $50 tons is for COAL
The distance bet twesn the main stern-post. and
the rudder post may be six feet if that length is ne
eessary for the propeller in and aft direction
and the depth from the load water line to the top of
the keel under the propeller will be q feet. The
ength from the maiHmaSt to the will be
about H. feet. The area of the greatest immersed
ransversed section to the deep load line viii De s65
square feet.
AS auxiliary steam frigates the spers and rigging
will be those Cf frgate of the first class of 1S0O
tons measurement.
The particular arrangement of the machinery will
be left with those whose propositions may be accept
ed combining the greatest number of nd yant aoes
the 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 vii admit.
The terms Of payment will be as follows when
onethrd of the work prsvi ded for by the contract
shall have been completed to the satisfaction of the
department. there shall be payment of ons-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 10
the department, Of not less than week at sea,
there shall be further payment of one fifth; and
when the ship thal have been in possessirn of the
department., and performed satisfactorily for six
months, the remaining sum shall be paid; the re-
pairs necessary during this period, from defective
workmanship and material, being at the expense of
the contractor. i- o--. -F-
Each proposal must specify the ship for which
the offer s made, and must be accompanied by full
and compets specifications and drawings, which, if
desired will be returned % those whose offers may
not be accepted. 1t must also be stated at what es
adjustment the work is to be DONE
Each proposal must be accompanied by guaran-
tee that the contract, when awarded, will be faith
f,,l ha
required to enter into security for that purpose in
the sum Of threefourths the amount OF the contract
j. G. DOBBIN,
jy 1-2awtIAug Secretary of the Tavy.