, 1875-12-26

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An examination Of these tables vii show that Chi
cago has pursued the policy ct abandoning rapid,
a. practicable the very small pipe which vas hid year.
! has laid
NEARLY FOUR TINES As MUCH p1PE As NEW YoKK,
notwithstanding the assertion Of the representative
OF certain foreign insurance companies, that "Chi
cago hss made comparatively no improvement In he1
fre.hghtng resources asnce the great fra" To dem
onsrats the faulty of that assertion, It Is only
essary to call attention to tbs diameter Of pipe
laid April l. 1871 which was 781 inches and to the
mean % diameter now which Is SOL inches aad to IN
q per cent.
pipes in Chicago are much mora efficient than shoee in
New York for the reason that they connected At
every street-crosstne In New York there Ia not a
general system Of lnter-connectfon.
10 illustrate tho beneat OF tho Chicago syshsrn:
aro hreaE3ng oat On sistesnta street on Twentieth
pendent for extinguishment the 6-inch or
8inch pipe on either of tbase streets. II It WERE
large number Of engines might be stationed tho
PITY, 1t least render IT comparatively inei1cient
Whcn these pipes have tho direct support 1t each
ner, Of every intersectiug pipe, larga small it is
~ad b. Whoa 50 %
Il may b sd I'D that that vhsn these p:res
little additional volume, and taat engines and hose
could carry water from the next street But it
efficient in delivering water than three lines Of
2iGfuch hoser and that one line OF 6tnch pipo will de-
liver more than SIX Lines OF 2H-tnch hose The New
1orE plan Vas ndopsed when hand-engines were used
therefore.
danger Of taxing the resources Of small pipes to
exhaust them. The Chicago plan provides supplying
Pipe On Clark street even though connected Ct Har-
street With l2iuch pipe, at Twelfth street with
Pinch and At Eighteenth street with 24tnch main
ia, nevertheless, more efficient when supported by
each interesting pipe At every street-cross1ng.
THE EXHIBIT OF PIPES LAID In NEW YORK
In 1a7475 shows how absurd was tho statement made
zens' Association Of Chicago, that New York laid no
Pipes smaller in diameter than ls inches. OF tho
5s:1H feet laid IN New York IL thess ess
feot were e-tnch, nearly 80 per cent Of the
wnole quantity being 6inch and less size Your at
sntSn ten 10 t to a not e1 t1s
employed in this city years ago but to show that the
abandonment Of small pipes for mere purposes Of de-
large pipes sufficient for fire purposes is imp1.ctica-
hle uncased for and is net resored to in New York
or IN any other cry in the world Observe, ALSO that
feet Of waer-ppes, OF which 2a5 miles and 1856 feet
were nches and miles and 4,o39 fest were inches
IN diameter!
4S-inch pipe IN use in New York, and included in
averaging the diameter Of the waterppes Of that city
lies between .ao s%o sesessots anh h the means "a Of
aide-ed n estimating the mean diameter Of water
pipes In New York any more thxn our tunnel feet IN
diameter and 20 500 feet in length which runs under
the city connecting tbs new lake tunnel With the new
pumping works. should oe included IN making al e.
tnate OF the mean damee1 OF pipes laid IN this city
T15aA hpHt IN
included IN such an estimate, anca It IL available for
emergencies having II TOT nre poses
from Then t~ee the nn6ef ,nd o. - engines IN Ne" YORK
You will not understand, trust that ths object Of
these conparlsons 70 that New York
The citizens Of Chicago have no disposition to dis-
parage the efforts or underestimate the resources Of
that city But since the objections to Chicago insurance
New TozK rska are safe and since that ty asserted
to be the against IRE Of the net1opo
tsn cities It scanned iafer 70 eompaIe cneaeoa out
smaller and less Becure coramunltiea
II you will glance at q map Of Chicago, especially
ous-dstfct boundaries. you viii see that in laying
pipes during 1874 has been the policy Of the Board
Of Public Works to afford protection to tho lumber
AUGMENT TIE WATER SUPPLY
la those infammahle sections which form the con-
1ectng links between the southwest and tha bust-
hess centre.
The s6-inch main is the great artery Of circuit
lround the most important part Of the city running
from tho new West Side pumping works. Or the
northeast portion Of this circuit the present pump
ng works with four engines; at the southwest por
ion, which ta the terminus OF tie new lake tunnel,
he new pumping Wor1s ara under construction, and |
most Of the machinery for their two engines Is
be ground. When these arc completed, tho total |
jumping capacity Of both works will ba 1A,0oo,000 |
United Statea in twenty -four hours. ]
The 94-inch main rups from Wabash avenue On !
Eighteenth street to C2nalpor avenue: on canalpozt
venue to Twenty-second street on Twenty second |
Throop street. where it connects with 36inch main,
nd which runs from Throop street to Ashlsud ave-
,ne; north on Ashland avenue to Harrison street.. |
where It connecta WITH 1-lncn ma1n WHICH
uns north TO Division street. These mains connect
nth nearly ~ Of the crossnpea Of smaleE s1zes and
AVE : very liberal supply Of large douhe.uozze by
lrant4 along their line.
The 1e-inch l2-inch and 8inch pipes also serve to
the pressure previously esiting. being con
ectel with all the snnlier and iargsr ppes a. eacn
rossdnR. They aro frequently tapped by hyarants.
12-nch pipe has oeen laid On Inafa avenue from
ackaon Fourteenth street. thence 1t runs to Dear
orn street and thence Eighteenth street, Whera