The Washington union. [volume] (City of Washington [D.C.]) 1857-1859, 1858-08-03
steam Machinery for Screw Propeller SiOOps-
Of War at the u. 3. Navy Yards OF Ports
mouth, N. H., Boston, New York, Philadel-
phia, GOspOrt, and Pensacola

NAVY D2rAKrAKsr, July &c, 1855.
c,EALED PROPOSALS, endorsed " Proposals for
- Eaes"sy 70, see@ f,ayels, s0' eser var viii be
September the complete construction the steam machinery
.d ana ss pes j Is % D sl l
York. Philadelphia and Gosor in accordance with the
fne oilers Lus. speac putting in sue
u operation ncade all patent Fees and the
require release from the Proprors Of
used IN o. about The machinery and must state the
By the usual guarantee required by law
Of the establishment which the work
must be Tho design aange Of The
chery left with the whose proposition may accepted
combining the greatest number Of advantages, keeping
ood simplicity construction readiness
operation and not bong subject 10 arrangement the
ing parts the object the procure machinery
which can develop great power when required as 70 Insure high
speed for as many days as possible while the time they viii
o that long voyages may be performed With supply of
With sbls view the department. win expect tho bidders to guarau
the results proposed e e. accomplished BY their pans aud to
M The amount power engines win
develop five days conseclyey whcn driven to their
highest capacity be measured board the by the indicator
at pounds high minute
than 900 and at SO revolutions minute
Of Goals horse hour be stated
The in pounds per square inch on the piston necessary 70
and tho engines without o except he me OF shaig must not
az pounds inch of piston by indicator diagram
exceeding Of 400 for machinery appendages
boilers and water in them bnnkers tools square pece and coal
Of iron of the mutubuar kind with brass tubes and with tel
scopc smoke and as Is intended to fresh in the
boilers surface condenser Of the most approved kind will
The propeller with hoising compo
on properly for least so per
for the immersed amidship section of the vessel
pumps apparatus Tor yentainy and appurenancos OF all
kinds for The perfect working Of the whole to be OF the most
The coal bunIers passage athwarhp heads
dng apparatus for fresh from which be mado mol
csssay aad satisfactory fc efficient cruising steam oop
must e Included in tho proposon and list OF them must be fur
work. the boring the deadwooi
the Navy Department. and will permit the Of such facilities
may have for hoisng the heavy machinery board
accommodation Of the entire machinery and ha fuel
spar 10 aba the thence
extending forward q distance Of 80 feet
Within this is expected 10 coal for five days steanng
a speed.
Ia specifications daily consumption will stated
me,m @ @ d na Ion .n ,f ia ,,ni 'p'' ~ y 0
The the after
viii be about SO and the distance
tween the forward after posts VIII be seven feet The
depth Top pro
peler will be IL fvet inch
proposal accompanied by specifications gen
e drawings, having the position OF the centre Of gravity Of the
cary hosrs Ss marked @ On them gnx " "a also ae CAPACITY the
pump outboard delivery vaye for above
pitch surface and knd Of propeller and other principal points
that comparisons readily be made.
labor provided for contract shall have ben Completed
the @ II @ whole s o M es w ov wsn s
have completed and ready erection in the ship further
secauvc das made payment 1s
aud when the ship SHAH have performed satisfactorily at for
rod of three months the remaining shall be paid The repairs
during this period from defective materials
will be the of the contractor.
Ills be understood that the weight and other conditions spool
ed in the contract be o, complied WITH the be
liberty the whole machinery the be the
taking Of the ship and refund whatever
the contract price may have been paid.
PROPOSALS place for the
steam machinery and appendages and placing the board
each the building the yards Boston,
Philadelphia specifications
above stated with variations in the following particulars
Ist Horse power ,ao at at least so revolutions per minute
bunkcrs TOOLS pieces
22l0 pounds each The length engines
boilers will IA feet aba the marm and thence extend
forward distance OF 46 feet
The distance the side Of the ainmast the
the forward post will be about 75 depth
load the the propeller
2inches
engine copy
the section Of tho vessels making application
department. ISAAC TOUCEY,
Secretary or the Navy.
July 2o--lawSep