, 1881-03-06

admission OF air for minute or SO after firing
On tue cooking principle, Wheinor NJ Ine uIe-
door or bridge, was successful IN preventing
smoke.
":rtle standard fire adopted was twelve thick;
system, the t, Combustion @ being assisted BY tie
admission or Il little air through me nro uoor
for u minute or SO after chnrglng, ny winch
maAus the smoke was practically prevented.
RUS mode OF iiring was adopted on two lengths
OF tire grate one four feet, the otncr SIX lect'
when it WIS found shlt WIN nee t 'rer graae ad
bt cvufA,r7lted per pound OF conl,-lao Indicated
horse-powcr per hour realized by the y boiler. lt
anu onc-ouartcr ~ pounds Of water were evap-
| GRATED per pound Of fuel. and ABOUT l'V moi
Gated horsepower obtained from me ooi!er per
hour. These results are without tho assistance
~ Alt6ourh M1t we Succeeded in preventing smoke
without any special Apparatus aud sihpiy %ta t
admission Of little air above the bars, yet 1t
was thought desirable to Try The eser Or eIa,, otnor
jets were applied. This apparatus. though very
Successful! In preventing smoke, did not roaifze
Il higher economy or speed Win round coa4 tnall1
simple hand firing, but WREN 'slack was @ Used used
1t was somewhat superior in economy, but more
From the foregoing twill be seen that in this
series OF trials we hive taken into consideration
tho best mode of firing whether with round coal
or slack, with thick tires or thin, with long ottrs
sh9 the best point TOR tnS Of y
chnnicnl and hand firing; also tho result or
rorcibIy injecting uir among the gases pS means
Though these trials may not be exhaustive,
1t has been found that smoke may b3 prevented,
whether firing mechanically or ny hand, wltnont
AtY special upDliuuec, or when tho combustion
Of tho grses Is assisted By driving In currents or
mir by Jets of steam. l think these triats fully
establish the conclusion thnt tne SMOKE nu'samve
and in most of total removal. As nlready stated.
the only difficulty is in those cases where tue
boilers ire oycrtasked, and these, 1t would np-
ho ossf4rpd hy mechanical feeding or
tho use OF tho stcum Jet apparatus, while III
many OF them tho difficulty could be mel ny re-
adaItlonul boiler power. With sufficient boiler
power the slnoko question IS se1tleu. .,..
:. cnnDOt conclude these remarks Without
cAlii11x attention to tho great influence or cure
full stoktns simply OH smoke preycn tlon. Ihese
trials have proved how mucn aepenUs upon rnt, eho
hns Tired the boilers throughout thls series U,
experiments, takes m interest in his work, ana
think it should bc viewed. Firing Is an art and
should be t:c,ltcd as such, and not MS slapdash,
rindom process, which any nEtausnr laoorer
can accomplish. To 4 gre"t extent our slnoke
producers urc the stukers. Educatc the stokers
In their part and smoke will be prevented Ihey
should be instructed In tho first instance how to
lated to constant caro- BY f1nc on fnll-
ure and Il premium on success. II
steam users we're united IN the movement ,nG
then require diploma OF competence US q
smoke preyenter' before obtaining post, And
his livelihood would depend upon his skill The
question. after all. is not one entirely OF science.
AS soun US the public became sush:lent!y eau-
Gated on the subject to demand the. Suppression
OF rho nuisance, and stokers are placed IN their
proper position, smoke will be abolished. Tho
Question is US much Il social Us a scientific one,
nnd to exhullst it fully must travel Into other
fields thun those of material science only. But
this leave to other hunds though cnnnot help
expressing tho hope that these experiments will
prove step townrd suppressng the s!noke nI-
su1lcc, ana thus oT promoting most lmportnns
sanitary and social reform.