Semi-weekly standard. [volume] (Raleigh, N.C.) 1853-18??, 1859-03-12
VALUABLE IMPROVEMENT n sYHAN

VALUABLE IMPROVEMENT n Sf8A4
KN01kKRY.
nSov =, pshssA arspsst - b NssR 4ssA
Whipp,s ssd Sssssst q she uaissd Slsso Nssy
10 q SECRETARY a -sassssss nas!es RsgsA.ss
n. Sarssas b . yeaas naa 80 49, -
..:..y.hs.s ysn 6 "a -. ns - -: - -.
Ssss:ssdh rnses. nns,saA sed ~ Caissa s.sac.
AZ Shs ssausss a . &jsaA shs Sersvsssy a "
Navy sunmoosd cpsaisiss q sagssssss 10 -
G - ussy.ysst; - shssgh Y - ~ y q n
peS(udscs uaissssally sncpunsssvd y 'Sseesss'es
~ suIl md Ais 6sal q - ut1nVAsa ssss q
eA~ssess saa ELECTED he Ss'iesise sspst he
No him ana 10 iassoducs ~ iavsnsioa iase snsr.
Il uss . 4 S.svsI We s~wdng,y psusss -
rspost 70 he pebble. ....
...,....... NAyr YAA wAssssssss.( .
go. fshsusy - iese
Sa: 10 esopasas .ish ye9 sssss q u ~
evnt's Nss,ss Rsrulssae- By sassehiog = 49, o.
CINE In shis yssd snd earslully sosiae - eSusesA
Il h Q eovsssos. a. % insssussnt - svsu1g
shs spssd a engines. By sdaisSine 0sss - -
steam st The required moment but. unliks gu ess1
iassrumsnts which have bssa soassvvd ~ tAns
purpose doss aotd spsnd spea he esasrifsss; esss
O. gravity q ssso,vies hsll&
whsrsia lie eAisf slBe;seey epassssA 3 De usss q
tvo rsvo,sing Metallic dssN, sith tsrsissa ~ ss
esishapsd suflbrvS ssssnxsd thss ~ Ssse ssss'
siioa IN he velocity a sishu essss q sAus "
throttle vslvs.
ne, dies svvo,v, In he ssas disvssisa. ssa y
s,oos-sbs oos By saaIl ssrissiag eyIlin-Sss. -
The other By . 6sis fsvo shs shA0 q IL onis 60
WHEN he sas;ss h veskias q ssFuis Pssa
both discx wvosvs with he sasss sssorisy; est
should sudden losd a. greater sssisssacs b sod
denly thrown On The engine. he sPssd a shs dc
driven by The belt vil 6s shsxksd Sc On isss.eI
bot L ~il be - inssantAnrsssly driven cut On Ne
incline plane against The shrpsss valve sss shssvey
opruns the throttle valve ia The lenes psibss @snss
usv Of time: 81 slso ubsn shs losd . sss3rnly -
ken OF the engine. The discs Instantly assume Ne
relative positions NECESSARY 10 mAinssia shs svyu'ss
speed
II was tried ea sl.e sa~.@sli engine vtsyy us hsd
The chance Il susnly shsc~ias On and ~ shs NOD
Of two saw Sstes. and 80 quick vas The epsssuef u
It's operation that thssv vss no psvsPees shssk a.
inervass In The sped II The soxsns. uhsh b co.,
sis;oa 20 have never hssa shle TO oetaia iron shs
brst tsli governor ever ussd IN the yard
Historically cpas;sisrvd. The change 3 eueA
quicker than can possibly he chained ~ hsl Eus.
ernos. Suppose che engine rsxuisisd 10 ssshe tssy
srvolusioas pr minute. and The too dasess uhieh
arc eighteen inches In eiscumttsvncv. sssosvs eos
hundfvd tunes pss minute; sutpnss tusd s-esssss.
" thrown on The engine Which uossd hsss ssascsa
she ryvo.usions 10 ~ s minute. The ssseosy a The
dise driven by The b~ii 4 instantly viscvd oseai:
but NC Only require . change u ooe ieeh n shs
relative Pcilinas a The tue dscs 10 ePsa The thfos
Tic valve and q both docs hsd beea svSolvine
$40 inches pr ssinuss. and oae sssA3snly ss3esd
To 900 inches pr minute thssv h 81 On inssAns
difference Of 800 inches p<s minute % their svAssss
vrloei6cs which b equal 10 hiesa inches prs sse.
- n -
inrh she valve d therefore oP<ns Or spssh % ses
aftcspth u . secuod
In practice &c found e 80 guirk that no ehssk
could be perceived by the eye.
So curtain uas thc susssnoe IN lie opsssiion shss
the engine could b. vosksd 81 sny atsisvd .Pssdl
ssyy sIs~. uhSh wquirvd the shfosils valve TO
be nearly esorrd when shs iasd uss s4isnly shsssa
on and Cd vishous any p<syxpsibse ds6ssvurv: unss
the sasse circumstances, 18th bsu eDsvsn's. We
engine would have stepped on ths evusfy.
IN engine supplied uish NJ. Sssxvuss eosssnss
can be cssily and quickly sv<uisisd 10 any dsssrsa
sp<y's ny simply opening % shussins ssasn wave
which admits steam 10 she asesllsSin< syhsdss.
over thsve qsssse,s af On ieeh ~ ineh n dssne.
ter would Be suibeirut s~i can be opsnsd % shss
With tho thumb snd finger ss sssny e shusijnG q
sxs hight; in<irxd 80 sensitive % shs Hassfsssas
Inst the main engine en- be ssePf<d ss.sssns'y -
closing this small valve
admit. ssssn to the main engine sad The ssns valve
d also coavsn;snsy arranged - Steam sseP valve.
being drsseh~d from the kossuof.
Il can BE- applied 10 any snsins uhsse any cshss
-o,,,nor an and &c shink L better adapted ~
marine engines than any oshss 9TH uhirh vs 60
seguaiassd
~, have The hoeos 10 b.
Very svspsesfsry.
Yoaf osI sssvtA,
IT, HUNT.
JOHN r. wutPrtK
HENRY r. STEWART.
Chief Essinssss U. s May.
Forwarded February "a issa. By
JOHN Rrpb. Ce@msnda.
Hon. Isaac Ioeers. Senvsssy a he Navy.