The Washington union. [volume] (City of Washington [D.C.]) 1857-1859, 1858-08-07
cam Machinery for screw Propeller SIoOps-
6f-War at the u. =. Navy Yards or Ports
N. H., Boston, New York, PhiiadeI-
bhia, Gosport, and Pensacola.
NAvr DmANraayr. JuIy 2s, 1858.

II NAVY DTAKrsaST, Juy 26 1858
kEALED PROPOSALS, endorsed g Proposals for
,d al is department. until O'Clock p ~ Of the eishh o.
amber The complete the machinery
~ tos building u s. navy yards Portsmouth,
H. New York Philadelphia aud Gospor in with the
he oaers specific putting in sue
m opaon include all patent fees the depArmen,
ments used in or abou, Tie machinery and must state The
which the work will be completed and be accompanied
The guar required by law.
Of the establishment in which the work ia to be executed
m LEFT with NE paty whose proposition may accepted
combining tho greatest number Of advantages keeping
simplicity Of construction readiness Of for adjustment
operation being subject In .e work
parts being the object Of te department machinery
develop great power required 50 a. to insure high
for many days possible while ut the same time they viii
pocl the vessel moderate speed with great economy
@ 50 that long voyages may be performed with one supply of
With view the department. will expect the bidders guaran
sciy those results under the folowog heads
The of horse whch she and boilers will
able develop fr I'VE days consscuysy when driven their
capacity be board the vessel by INDICATOR
rate of s3 900 pounds lifted foot high in minute and to be
than 900 horse and At least SO revolutions minute
The consumption Of Goals horse hour must be stated
% II y @ v sD c mo on s o
the engines without load except the line OF shaftng must not
coed 2 pounds inch OF piston by indicator diagram.
3D. The quantity OF coal which can be slowed IA the ship without
ng tho total weight Of 400 tons for machinery appendgcs
lin the length occupied by he engines aud boilers Tie boilers
Of iron tho muubnar kind with brass tubes and with to
rs surface condenser Of the most approved kind viii be re-
be properly propooned for at least so per min
and for the Immersed amidsip section Of the vessel
The pumps, apparatus for ventanP and appncnances OF all
for the perfect working the whole to be OF tho most
|proved kinds.
The coal bunkcrs passage athwarthp heads
dng apparatus fresh water from which be made not
than 500 gallons per day and the duplicate pieces
(ssary satisfactory efficient cruising owar,
be included in tho proposition and list OF them must be fur
carpenter work. except boring dcadwood
the shaft adapt the vessel for the reception OF the
acnory boilers and appendages provided expense
Navy Dep,rtmcnt will permit the such facilities
il may have for hoisng the heavy machinery on board
For machinery and the fuel
will body of tho ship, tho entire under
deck 10 ieet abt the main mast and thence
stendrg forward distance Of so feet
Within this expected 70 carry coal for five days seaming
the maximum spoct.
In the speccons the daily consumption Of fuel will be stated
tho weight Of tho macnary coal boilers water IN them shaft
opcer and appcnages with tools and spare work. all Of which
lus, exceed 400 Of 2,240 pounds
the side OF the mainmast the after side
a forward and tho after will be feet The
h from the load water limo 10 the top OF the keel under the
proposal accompanied by specifications gen
drawings having the position Of the centre Of gravity tue
cylinders pressure cam foot delivery valves
pump ouboard delivery above
pitch surface and kl Of propeller and other principal points,
nat comparisons can readily be made.
payment will that whom half OF the materials
prov the contract shall have been
satisfaction q the department. there will be made payment Of
completed and ready for erection in the ship further
6 win be adc when satisfactory trial Of
days shall made, then further paymcn
the ship shall have performed satisfactorily
npnth the remaining shall be paid The repairs
eccsy during this period from detective wokmanspor materials
iii Ne the expense OF the contractor
that thc weight and other conditions spec
ed in complied with, department
be % reject the whole machinery the contractor TO be at the
taking oui Of the ship aad 10 refund whatever amount OF
no contract price may have hccn paid.
PROPOSALS the place
machinery appcndagcs and placing the board
sloops building the navy yards Boston,
ade.pha the specifications
stated with variations IN the following particulars viz
$50 ut least so revolutions
weight for machinery, appendagcs boilers
them bunkcrs tools pieces coal $40
pounds each The length by the engines
II feet abs the mannast and thence extend
Jrvard distance Of I6 feet.
tho ucr side OF the manma the aterde Of
post will be about rs feet The depth from tho
tho keel under the propeller will be feet
inches. x
who desire to bid obtain Of
any the vessels upon making application to the
cIartu cn. ISAAC TOuCEY,
s#5.gts Secretary or the Navy.
luly 29--1awScp s