New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1849-12-24
NEW-YORK TRIBUNE.
TIL. Steam EnsiDe-whnt It !. md ~n'' "

may be- Cosc.ase1
Thosa WIN arc s..ishsd win common seh'''
comm n reason. ard the fsE5snentI s'u
rules Of common arithmetic which oil 60 !" p''' 'u''
the hslf u can Be OILY 2, ard 10 in're' va
dlsgrsms or geonetrcs or sseofs'eAi -
vnra ,han, tbs, crsok fact long e-hno' p'ss'oJ nav"
,o,,s Than feet average leverage toward lO's' -
,.c,.sk feet long requires cyiiHoef ana ii''-n
-. 10 work IL: and two single strokes Of tie
feet esch making 10 feet Of travel Of piston
"a rs feet Of steam Expansion oouted) 70 make en-
s,ire revolotiJn o. the crank shaft Ias - me pre-
,so, Steam Eosine-thi. ia what Il requires lsh The
M, efficient aud economical coutrivsnce that can he
to,sbt o. or Invented, o. in ths language o. tse
e,1asl,sl press Of tas d., ia there 'n9 pore
lo,, IN t5s crank - Lot see. Pauy "a
. mechanical sgent well Unde;siood snd Ia gene
al use. az We ,sld In our lsst, before the Steam
Engine va. ought o. Take Oh the crank, and 10 Ecu
Oft pvt on pulley feet ia diameter, AID apply tie
power a, ito periphery By means Of chain wrapped
around it--Wnst leverage have you them Answer
Tro Gee, constant and uayUm because 1t Ia Two feet
from the center to The circumference all round None
We link, will dispute TIA. > feet constant and I'M
fo,n Leverage (. ~ powerful natural and "a de'fa
tles,the feet average leverage Of fee, variable
sad aver varying crank Now what leDgIh Of CYLINDER,
ssd piston. and stroke, and q7sa,sy oi stes is re-
oufed 10 sye On entire revolution O! the shsts with the
pulevf Ansver A cylinder and piston sod stroke n
Isn.tb 10 the circumference Of the dlsma,sr
p,lav-yblch Is fraction over ~ fsetwiu, ia OF Q
spgls stroke Of the piston give whole aud entire re
voiutiou Of she shat. Inc ie5tcfsLk engine h',nE
feet average leverage requires too sings strokes OF
feet each masking 10 fee, Of travel OF piston and 20
fest Of steam Expansion includscJ 10 produce tue sse
result No loss Of power 10 the crank. eh Only
s3ou, lse. Wsste ia 10. qla'to saved MoEE THAN
Thai The : foe, used by the crank than
the LulIey consumed to perform tie same duty,
will awe the pulley nesTiy another THIRD Of apoA1
rsyo,uten-she requiring bot another fraction over =
feet Of steam make the who.o circuit But " have
no, done with crank yet We have been cyp herring
In the rus Of subtraction sud our schooimsster told
"a when We had done sum 20 goto work aud prove
II heh. Following our early usiDiog, we Viii now
prove the crank guilty OF AL the charges OF waste ard
gsnce that W. have brought against her Tbs
task Is short simple aud essy
40 engine with u crank fee! long requires "a We
have seen two strokes VI feet each making 10 feet Of
travel Of piston and stesm 20 make revolution
Wts enc bas been doing this how far has her crank
Din travelled Answer orr trcE3y f0ry feet because
IL described a circle whose diameter is feet, the cir
conference OF which 4. li,te over three times ~.
diameter we nave also sc'u tLht win NC afti"tV
eversge OF lcss than feet against the 2feet con
Nant ard uniform leverage OF the pulley, she con-
sumes abou. feet moro steam 70 every revolution
aud now We ud that with HAT IS ieet Of steam she Ia
sending her crank pin "a feet around d tic saae
tnS-beug dopbe tho distance travelled by the pulley,
and more than a third Carthr than ever she herself
hal steam 10 drive ~ Are there no, ecsrTtHSs
enough here for the pulley account Tor her ~vd VI
sGp1Ss
But the pulley DO msde TO work-csn 1t perfo'm
all the beneficial service without the oss and waste OF
the crank suppose 1t car suppose 1t has been
DONE within the last thirty dsys within this city, upon
scale aud IN manner that has wrought conviction in
the minds OF competent TO Judge fully end sbund-
sny corroborating every syllable here expressed 3
Whist then Can man Of capital be found who has
sasac.y, enterprise and confidence enough In bis own
sense, and Judgment. to appreciate the advantages
and importance Of securing Interest In 90 great an
Improvement and while enrohing himself, give to the
public the full benefit Of 1t Let Rim apply to US, and
we will refer him 10 = who will exhibit 10 him a
Paaey EKsips, and such proof OF its superiority In
performance, neither ignorance, prejudice nor
malice, can question or dispute.