The Portland daily press. [volume] (Portland, Me.) 1862-1921, 1875-10-01

ed, makes them almost indestructible, and, in
deed, the company is willing to guarantee their
durability for any length of time. The append
ed reports by DR.. s. Dana Hayes, Massachu-
sets State Assayer and Chemist, and Professor
| Otto Wuth of Pittsburg, Penn, fully establish
the claims of this pipe to durability We COM
mend it not only to our gas and water compa-
MES, but also to our mine owners and others
who have to use or convey impure water, such,
for example, as in many anthracite mines.
These large pipes would make excellent screen
shafts for our coal breakers, and the enamel
would doubtless be of great advantage for coat
ing the exposed iron work about the mines.
In bringing the matter to the consideration
of ''thOse whom it may concern we believe we
are doing consumers as well as manufacturers
a service
REPORTS.
II have recently made a series of tests of
your ename,ed pipe for the purpose of ascer-
tanning its value as a service pipe for conveying
water and other fluids, and now submit the fol-
lowing brief report of the results obtained
portions of the enamel covering itself were
first removed from several pieces and submit
ted to chemical analysis to determine the pres
ence of deleterious substances; but the results
of these analyses are entirely negative, as there
is nothing of this kind present. The pipe is
made of wrought iron, covered, inside and out
side, with an elastic enamel like material that
does not contain any unwholesome or objec-
tionable ingredients.
sits durability was then tested by exposing
different pieces of the pipe to the solvent action
of hard, soft and sea waters, alcohol, and other
fluids, for many days, and finally those fluids
were boiled in the pipe for several hours in each
case-the object of this boiling being to obtain,
as nearly as possible, in a comparatively short
time, the effect produced in the pipe by long
continued usage. These tests have been very
complete, and am quite surprised at the du-
rability and power of resistance of the enamel
covering determined in this way. 1t has not
failed in any trial with natural waters in my
labratory, and it has wthstood the action of
boiling corrosive fluids for longer time than
specimens of other water pipes now il common
use.
81 commenced this investigation with some
doubts about your enameIed pipe, but the severe
tests which have employed prove that it is
perfectly harmless and possesses great durablli-
ty, these being the properties of most impor-
tarce in water pipe.
S. DANA HAYES,
State Assayer and Chemist. Mas sachusetts."
81 have made complete series of tests in
order to ascertain the quality of yonr patent
enameled pipe, and found that the enamel COW
ering perfectly both the inside and the outside
of the wrought iron pipe, is not in the least
affected by the action of alkalies, acids. salts
of any composition, alcohol-iu fact. any Ii
guilds which in practice are apt to be conveyed
through the pipe The enamel itself contains
no deleterious substance whatever, and even if
it did it would not make any difference, as not
a trace of it will become soluble. Pipe so en-
ameled is specially adapted for water and gas.
O. WITH"
M Y Engineering and Naming Journal