, 1875-09-25
Applied by A1r. l.. j, Knowles to
tho Manufacture Of
Pumps.
4 Magnificent Display by tho Knowles
Slea'n.Punp Works Mt tic
Exposition.
Observations of Tho Tribune Repre-
sentative

It ia'pfetty Eenera; conceded that In the do
raItnent OF machinery in motion tho Inter.
State Industrial Exposition e1cola ans exhibition
ri previous years. Not only II it superior In
regard to tia more hyatomatsc arrangement, but
also IN RESPECT to tho character of tho display,
Which ID a'gor and more interesting than any
NreVious one. Thi6 fact appears to be apprecl-
ated by vialtors, for, notwithstanding the display
In other departments, thla particular depart
ment i,ods the attention Of tho crowd longer
than auy other. The magnificent ::dsnlay Of
Knowles pAtent Steam Jumps addA a. much
certainly to tho attractions ot this part OF tho
ExPoa.tlou Building as any other especial cxhi-
Ision 60 far the general observer IL concerned.
But, to tho practical mechanic and all having
solno knowledge OF 1naclucry, kuowtes' pumps
oles peculiar attractions.
an IL tho general oi1cct Of the display. which
MAJ carefully su1crintoaded by alr. II. e. Haath.
tho Knn~!es Btcara-panp Works. we d, uut ex~
agBetato whom wo say 1t ID far superior to any in
thE Mechanical Department. 1t might seem or
travagant to clai for 1t rlore than ss, but II it
WAS in tic nature Of machinery made to perform
tho labor uf many hundreds Of men, to present
M fair IN o1teriof as the many l.Knt ARTICLES Ut
household goods nud female attire With which
thu aouthcrn portion Of tho building u filed
ono would not heaitsto to ptonnunee Mr..
and taatofus!y covered in the Whole great collcc-
ton Of Interstate curositIes and industrial prod.
ucts. To partlcularlze: Tho spaco liz band
so1ncly carpeted and Is surrounded hy a aubs:au-
tial aud ornamental iron railing. The entrances
two III number, arn markcd hY btight-calorod
| mnts that bid the visitor welcome. aud add par
ticulsrly cheerful appearances. In the centre nf
tho iucloHuro ia neat business deHk, OF Which
stands a bouquet Of fragrant flowers 10 hand
suua Fatiah marble vase, and pot OF most
| beautiful foliage plants that would 10 credit to
tile noral department Of Easys Office. Chaira
invite tue tired visitor at either h1do OF tho desk,
aud many hYail themselves Of this Eas little Kar-
don {for other bouquets aud plants are plenti.
fully distributed about) IN tho midst Of tho rum
be aud jar Of machinery. At night the display
sT1LL MORE ATTRACTIVE
by the arch Of 6as-jeta extotdiug over tho apace,
| and in ltttcrs Ut light announcing u knowIeH'
| Pumps to tho fnzthsrmost patts ot the great
building,
Tho rumpa themselves, ten iu number, arc
moat ofabo,a;cly finished. 10 tho oyo Of t1o
uachiniHt ths, nfter all. iB the chief attraction.
| lie regards Tho elegant workmanship OF his en-
| gino Rs tho groom docs the smooth coat OF Lin
Lorae We haye only spaco iu this column to re-
ier to tho elegant fiilial OF the knowles Pumps,
/ aud barely mention the taAte displayed in their
| arrangement; aBatsfackory description Of their
arpoaraaco could hardly 10 written II it wore
| attonattoa.
| Ono remarkable feature Which the Observer
uotices In connection with tho working of these
pumps ut the Exposition. il tho entire abseuco
OF nose and jar. sucl Ia noticeable in all oth-
Or htoaa pumps This ii one of the crowniug
| tsiuinphs of the Knowles Direet-Acting Hteana
Pump over Its rivals. and QUO Which seems dea-
tined to give ibis tho precedence orcr all other
| asscct.acting steam pumps. The detslla no can
only braeay explain. This great improvement ia
patept OF which ia controlled by BIZ. L. J.
knowles, whereby tho valve In tho auxil-
ia1y cylindor IL worked In pos
itiye mannor by steam. inatesd Of by
.kH u.i1
utAer d!rect-nctius stealn-pumps. Dy the lat
ter znoals. q part ut test u struck by movable
part. which ca;aeB the nolso and jat obsarysble
in most direct. acting steam m-pumps. aud which
TO wear out. by the Knowles patent tho valso
| is worried with tho same degree Of certainty aa
my eidc-yalVc worked by Nh cccontric4 and a So
1ioua objection hitherto mado by dtrcct-actinE
J pumps IL thereby ronoyea. III tins respect tho
Knowles pump is far ahend Of all competitions.
| Tie lnventioo il OF recent date. but its merits
arc already widely known. aud tts universal use
In diEect-acting ssoam-pumpB ia oniy question
OF tuae.
"A second invon.ion rccautly patented which
| gives The Knowles pumps agcnetally recognized
| superiority ia this: All their hu1.liaty kseanl
cylinders aro lined with composition, and 70
composition lining aud tho caAt.irou cyuu-
| der, giving o Htea!n- j&ckctud cylinder.
This prUyenls tie piston from sticking from t,,ht
OF expansion, -Hsfurtuncs which machutsts
we'll lnow a!l tho ordinary Kind of steam puu!a
arc liable to. It is hardly an exagsolation to
say that this Is worth halt tue ptsco OF tho
| pump
Another thing to which We w.sh to draw eepo-
cial attention. the Knowles pa:snt StiIi-llunning
Pump. Ii il an ohgsus with five poBtz, aEd blaEs
about lilo following renuts: Tho main steam
iBtor Ii rln At tl.u highest speed through tho
centre of Tho cylinder, aud slusa dowu ~ tho
end Of tho stloke IL approached. It t!scsoby pre-
vuuta pounding IL tie water cylinder. aud eau
In started on tho most intricate hvsteu of mining