Evening star. [volume] (Washington, D.C.) 1854-1972, 1858-08-07
STEAM MACHINERY FOB SCREW PRO
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GOSPOR 4, AND PENSACOLA.

SIEAM MACHINERY FOX SCREM PhO-
H Av1 SskESSs IF pPoRTAASSoht al TIT TN n T.
BOSTON. NV Y0sk, PhIb aDELPHIA,
GosPoRf, AND PENSACOLA.
1. Navy DKpnlrxxsr. July s. Isa
st.aM MafsseSs 1os ss 1s P1o,.flsS siScs,
war" viii D. r.eeve6 NJ tins drpastment nrssIi
the oomS etc oonsirustioa Of the steam ma onln. "
and A. pendases, and pls cnr me sane buaFd Cor
s. Sssy " T.sdsa PoT..muu,1. H., Ne. Ysrt.
PM sdeiphia, and Gosport- m accordance with the
The Offers ma,t be Tar a spsoike sum for putting
the who IN sscoessfsl operation, rausi include al
lease from the proynstor Of any palentes srti,e or
srrsnyemsnfs used in or about the msehpsry. and
1etsd, aad must De accompanied By tue usssl guar
autes REG airee 10 aw. ... -
The name Of the establ,shmeni in which the work
10 TO be executed must be STATED. The details Of
the design ard Arrangement Of the machinery will
osptee as combs, aug the a. eatesi nsnbs, OF ssvan
tases, keeping IN view cost sIlnpilcty OF cJnstruc
oEsratioa and nat 6ens subject 10 deIans ement IN
the Working parts; At being the object OF toe depart
power when required So as to insure nigh speed for
ss mary days as possible, willie ~ the sane time
speed with great economy Of f Il. tai ioEs vow
sxes ~, mo, oe peri rmtd With one supply o. essl.
e9p ,seg ~ tssr plans and to sPeoii, those re-
and boiIers viii be able 10 dev-Iap for We s,V, CO.
to be measured on board n vssse b, t6s
~ the rate Of IS 90 pounds Lifted one Too; Llrh IN
and At least 80 revo utions per minute power
The consun ptIon Of coals per horse power per
square l0ch on the piston necessary 10 work the
engines at the above velocity, the screw btiug dis
ecnnsoted sa5 tne enrines without a load. except
square inch of piston by Indicator diagram.
I'd. The quantity Of coal when can be slowed in
nj. fho fnfn a. ks e
tons Tor machl cry, Appendices, boilers and water
IN them; bpnkers, tools, square rIecss, and coal
ers Tie boilers TO be Of non of this mu ubul lar
tipd, with brass tutes and with telescope smoke
pc, and, IS n is intended Ia fresh water IN tie
boh.u,s surface condenser Of the moot approved
The propeller with the connections for bo,stms a,
wl be Of composition, To he properly pIoPortioned
for at least 81 revolutions minute for the ui-
The pun Ps; apparatus f,r ven listing, aud Appur.
ten1nee, Of Kinds necessary for the perfect work
The oea tuRkers shsft passage. Two athwartsh,p
IRON bulk heaGs, dis'i ling apparatus for fen
Ions Per day. and rhs tools AND duplicate pieces he
oessary and satisfactory for an eihcient cruising
siCon. and q list OF them must De furnished.
The wood and narpen er work, except the bo ing
the vessel for the reoep OF the nschiI cry boil
ers. AID peldasss wall be provided at the expsn.s
Of such fa3sites as Il may hsye for ho,stinr Iss
heavy machinery On board.
,h,na,s "a 49, ~ ID ~ INC sn.Ise snsm ma
"a eo 'e iuel VII, oe aoueo In the 90 y
~ IN P, " n ~, .face onuer the spar deokl
tSanns a. r 80 Hoei. sne .atn nast' AID
W,hSS - -. ~ ~ a. q :" SIeet.
We dsy "a stea nm, a. the ~. ri,nn,n sns. WI tut
In the spec 6c.flnns the dsIIx c,rpsur,,,;,, %,
fuel will be A 40 he VT nj he ms s,
COAL boilers wa, er am Them shaft nro,siis, snd
penusges with tools ard spnTe VII nj ~ S,h,Iph
nust NOT e Il cs ed 4i6 tom, of5 2ao ncn,ds - "N4NH
The distance from tie tef SIDE of Tie n,,,r..,
to the after .ide of the forward stern nosr VII -
xbout s0 feet ,nd he d,st.nss ha,,sa 49, VIII Oe
and the aft er stern posts viii he seven feet rha
depth from the load water ne 10 the Ton of ,ha 49,
under the propeller viii lie u feet mon
The proposal must be accompanied low full sp.o,s-
cations aud general drawings, having the po,ltIop
OF he centre of gravity of the mschInery no,'ers
them Giving also the ca pacity of the
steam cy udeTs pressure Of steam srea ~ TO-, sd
delIvery valves aud of air ppmp and oStbaeSd a.
livery valves, space for steam aLoye ihe wni.T lIns
ofths boilers the ire and Ersts surfaaa ThdI
amete-, pitch. surf ,ce, and EinI of proaseT ana
other rrinc pal points that comparisons car resdis
be msde.
The terms ofpaymert will be that. when one half
Of the materials and abor provided for IN the CON