New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1860-09-08
GREAT CROTON PIPE.

A, the new main over the High Bridge is one OF
the ncs. interesting and important public works now
IN progress and presents in s.lf al in s manufacture
ma, talures of novelty we have taken some pains to
gather The followiDg facts in relation thereto. The
tute is made Of Baltimore charcoal pig iron, the plates
for which are prepared at Horace Abbott 81 Sons,
Canton Rolling Mile Baltimore; a firm which has
inside the widest iron in the world, sheets ITO inches
wide BY an inch thick having been manufactured by
them. Toe pigs of iron weigh about 100 poauds each
Several pigs havng been broken into three or four
pieces EACH az many are required are thrown into
the ludding furnaces with allowance Of about %
Per cent for oss of weight in mauufa ture The mass
coon becomes of the consistency Of dough, when 1t Is
stirred Up with shce bars, or pudding irons, very
much be q woman would stir up the material
for loaf Of bread. After the lapse of about an hour
IL is worked up into what is termed puddle-ball, in
THE care Of about 80 iuehes in damster and then by
the aid Of ongs and crane is placed beneath large
Nesmilh han mer, and after tremendous pounding,
il comes out in the form Of slab "a feet long by IL
inches wide and inches thick. After being ao we'd
20 gradually cool off this slab 10 put into reneating
furnace, where II remains few minutes, aud is then
sal en- out and rolled 70 the required thickness and
the ragged edges trimmed off BY Of large shears
The shees prepared for this pipe are fee. vide by
loJg, end bali an inch thick. Toe iron used is
required 20 stand q strain OF 10000 pounds per
square inch. TIE pipe is $50 feet long, and u
1ee 10 diameter; the allost man, therefore would not
Craze bis hat in passing through it, IL will be made in
sections Of II feet There viii be 112 Of these sec
tions requiring 675 sheets each Of which contains 4S
aQusre feet: and weighs $50 pounds, or 20 pounds TO
the square foot.
Tb. first thing done a. the shop of Sneden & Row
land the contractors TO lay the sheets out perfectly
square, and make the edges fair and smooth Going
sh.p 10 the punching machine each sheet is punched
near the edges with 200 holes 1916 Of an iucn ia
diameter. Tue sheets are then put under drilling
machine and eac1 hole 10 countersunk 80 that the ryes
may be driven ush leaving the pipe perfectly smooth
On The inside Indeed il is aft med that il will be very
Official. 70 distinguish them Next the sheets are sent
90 the rolling MACH me- and rolled 10 the required curve
or radus three sheets butted together forming the
ppe In order to make this buttoint, strap of iron
nine inches wide and half an inch thick ia EN-
U)oyed which runs the whole length Of all the seams
These straps are made of fange iron, which is re-
,uied TO stand strain 50 per cent greater than that
Ised for .he sheets. The heads Of the nvets are
,utside Of the straps, which again, Of course are
,uside The pipe. The riyeis are made by Burden al
he Troy Irol Nail Works and are threeiourhs OF an
neh ia diameter and II inches long; the head Oh
be Tiyet~ is IA ioohss 10 diameter 10 eaca * ioo'
eetion there are jqst 200 riyes. The weight Oh
latss lie 64S 900 pounds Of the straps I'D l2o OF .ne
iyste, 50 O)O-makiDg in all a total Of about oiOoOO
ounds. The contract of Abb % s. Son, for farmsh-
* the plates and straps, was for $8 S59 d. sneden
Rowland do the remainder If the work, and sup
j the other materials for s29 81 per AGeaF fJob