New-York tribune., 1867-05-24
THE LEAD INcAsED BLOCK TIN PIPE.

INTERESTING ExPEgIMENTs AND SATISFACTORY RE-
SUITS.
By invitation Of Mcssrs. Colwells, Shaw x Will
lard manufacturers Of the Patent Lead Incascd Block
Tin Pipe large party Of gentlemen visited their estab
lshmen the foot OF Twenty seventh st, North River
yesterday afternoon TO witness tho process Of making tie
pipes and the tests which IT was 10 DO subjected The
formation pipe similar to that Of the ordinary
lead pipe the OF lining with coating Of
block tin simultaneously with It's formation, was the OBJ
iect TO which the attention OF the visitors at frat
principally directed, the tests apd explanations of lts
r9,ns Of rperSry following ie m oI 0 Saa AIT from Ta
Of pure block TIN which occupied about
'th OF the space in the mold II prepared for this
operation by being subjected to the f1gornc Influences
Oi ice The molten lead surrounded this cold block OF tin
point Of contact Then the machinery was put oper
alton and the pipes came out below perfect tube with
lining Of tin at least one fifth OF the entire thickness OF
the ppe entirely smooth and of une xceled uniformity
Mr. Iault had been sent by Delmonco to spread fne
collation. the Offices Of the establishment and In due
time this To the notice OF the visitors After had
been thoroughly investigated the Hon Isaac Dayton
by the prOprctors TO thank the gentlemen present for
their attendance and examination OF their nnned pipe
they were satisfied that II only required the eKamna-
ton intelligent gentlemen 10 satisfy them that the Tin
low II not lower than the ordinary lead while IL fur
nshcs water at all times aud under all circumstance as
pure as though oTsa IGSus pd Ss tGs who'll Interior
OF which Is completely and uniformlyslned with TIM thus
securing al hS 81 eag G n s Tbs npsd MIN s
pipe fs as easily and readily pumbed and joints are
plpe' The company Considered that il gentlemen who
were concerned the planning and erection Of buildings
they could satisfied OF the advantages of the article
which Messrs. Colwells, Shaw Wiards are manufnc-
tnnS Of examlhs ton that the invitation had bcen issued
and for the attendance and attention Of the afternoon he
Professor Doremus said that il the universal testi
mony OF chemists that water distilled through
fin perfectly pure that distilled through gold
silver or platinum. Therefore Mr.. Dayton suggeson;
that water passing through tin pure as flowed
,hr oh sllV A
popular mIstake AZ least common one 10 that the IN
ors Sn uT w@-er The fact ia the
carbOnic ach IN water renders the iDcrusaton SOLUBLE
and thereby permits the action Of lead upon the water
ms il no inerIstation existed The interior coating OF
the Lead ,incssed Block Tin Pipe is per1eet, a. tne
Seef OF The article which had been opened for
examination. The old method OF lining lead pipes wIt
tin wa. 10 pass the lead pipe through bath Of melted
tin; but the coating plating, imperfect and
worse than no tin ~ al He spoke OF the hsnusicte
Of this PIPE beautiful process. the product OF
supported ny lead. II had been demonstrated the fg
strength ssthat of lead pipe of twice It's weight II has
the advantages Of delivering pure water o, M s.rensn
properties Of eed have been known Ior more ,hI
2cOo yenrs md yet it ~ IN common use throoghom
the civilized world because no substitute mas neen
folmd 10 compete with 10 ID cheapness ana Ia
ety Of use TIN. iiniGed pipe meets r,rSore 5nsfe
acid In wate lead the poison may he taken INTO the
human system week after week Tor years unknown ana
nnsuspeced un nnaly i comes ont ID Nat pnysIcsns W
explosive disease. Medical Investigations OF cases
uf partial ulrayss or the
pected as Deng cause There s great danger from
This IN schoss large factory buildings where water
remains stationary III the pipes over the saDDat ana ~
used in the ordinary way on the Mondays following IL
rtpy 10 dneOs he said that as tin 10 not as soluble ns
lead IL 10 mere durable and that gavanc action could
not be produced by hot water unless Doh metals are
aimutaneoiry exposed. Hot water coming IN contact
with pnre IA could such action The joints
can be made without disturbing the lining and thus e1-
posing the lea and several practerl plumbers corroDo-
rated this statement adding that only the common solder
required
prof Tlglman said that he had made several tests,
spd had asraned that half the weight per foot OF the
tin lined pIe would stand oneseventh greater
the Ordinary pipe, and the lead ineased block Tin
ppe the exDerments being made in the presence OF the
guests the figures denong the number OF pounds pres
sure TO whdl each submitted before bursting:
4 lbs 1 l A lead, 7l5; second trial, $40
H. IA o. in. A tin lined, l00; second trial, eco
lbe II Jz. In. A lead, 1000.
lbs o. ip I'm hned'i,i5o
lbs o. IN. lead. 1900
lb "a az IN. tin lined, 1878.
In "a o. III. A lead, 1,i50
I III q o. in A A tin lined, 1900.
! lbs tiI lead, lrJ6; second trial, l,27o
H. Ain A A tin lined, 1,G25; second tral, LOIS.
These pIers OF equal length, and the difference OF
weight In he two qualities IS shown by the ngnres
above. In making these experiments the Lead hPPe P
The tnned pipe remained rn, except at the poins OF
bursfne he coating Of tin 10 not affected ny Dtnolbe
the pipe the union Of the metals being perfect and 70 can
he bent many times than common lead pipes Will
ont niurv In weight the advantage altogether with
ths nsd pipe being less than half the thickness TOT
tbe rsspectye kzes OF tube To sum mp brienyi sbs
amnaion Yesterday showed that the lead ncased poeh
tin pipe was lighter stronger more durable, ana ene.pv
than sny other lead pipe made; while the perfect uni
f0rmty OF the tin lining las was demonstrhted py opcn
ing so feet OF the tube for inspecon) insures anU
for with e. ss the Hon. Mr. Dayton sus
eested and Professor Doremus asserted the WAFER car