IMPROVEMENTS IN THE PREVENTION OF INCRUSTATION IN STEAM BOILERS AND IN CLEANSING THEM WHEN FOUL
Year: 1877

page_text: LETTERS PATENT to Johann Diedrich Petersen, of Birmingham, in the County
of Warwick, Mechanical Engineer, for the Invention of "IMPROVEMENTS IN
THE PREVENTION OF INCRUSTATION IN STEAM BOILERS AND IN CLEANSING
THEM WHEN FOUL." A communication from abroad by Robert H. Harcourt, of
Chicago, Illinois, in the United States of America.
Sealed the 29th January 1878, and dated the 18th August 1877.
PROVISIONAL SPECIFICATION left by the said Johann Diedrich Petersen
at the Office of the Commissioners of Patents on the 18th August 1877.
JOHANN DIEDRICH PETERSEN, of Birmingham, in the County of Warwick,
Mechanical Engineer.
"IMPROVEMENTS IN THE PREVENTION OF ENCRUSTATION IN
STEAM BOILERS AND IN CLEANSING THEM WHEN FOUL." [A" communication from
abroad by Robert H. Harcourt, of Chicago, Illinois, in the United States of
America.]
fallowing chemical incrediants in
PROVISIONAL SPECIFICATION left by the said Johann Diedrich Petersen
at the Office of the Commissioners of Patents on the 18th August 1877.
JOHANN DIEDRICH PETERSEN, of Birmingham, in the County of Warwick,
Mechanical Engineer.
"IMPROVEMENTS IN THE PREVENTION OF ENCRUSTATION IN
STEAM BOILERS AND IN CLEANSING THEM WHEN FOUL." [A" communication from
abroad by Robert H. Harcourt, of Chicago, Illinois, in the United States of
America.]
This Invention consists of a solution of the following chemical ingredients, in
about the proportions specified :-
--
Take One pound of extract of logwood ;
Ten pounds carbonate of soda;
Ten pounds biborate of soda;
Ten pounds sal soda :—
Dissolve thoroughly in twenty gallons of water (at 208° Fahrenheit), then add
to this five gallons of treacle or molasses, and fifteen gallons of tanners' extract.
Stir while boiling until all the ingredients are thoroughly mixed. When thus
nixed the compound is ready for use in the proportion for new boilers of about one
gallon to every ten-horse boiler power, according to the quality of the water; or for
cleansing foul boilers, in greater proportions, according to the state of the boiler.
The tanners' extract referred to is the extract used by tanners in the process
of tanning leather, and may be made from any bark or wood abounding in
tannic acid.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Johann Diedrich Petersen in the Great Seal Patent Office on the 16th
February 1878.
$6
JOHANN DIEDRICH PETERSEN, of Birmingham, in the County of Warwick,
Mechanical Engineer.
IMPROVEMENTS IN THE PREVENTION OF ENCRUSTATION IN
STEAM BOILERS AND IN CLEANSING THEM WHEN FOUL." A communication from.
abroad by Robert H. Harcourt, of Chicago, Illinois, in the United States of
America.
This Invention consists of a solution of the following chemical ingredients, in
about the proportions specified :-
Take One pound of extract of logwood;
Ten pounds of carbonate of soda, or soda ash;
Ten pounds of biborate of soda;
Ten pounds of sal soda:-
Dissolve thoroughly in twenty gallons of water (at 208° Fahrenheit), then add to
Stir
this five gallons of treacle or molasses, and fifteen gallons of tanners' extract.
When thus mixed the
while boiling until all the ingredients are thoroughly mixed.
compound is ready for use in the proportion for new boilers of about one gallon to
every ten-horse power boiler, according to the quality of the water; or for cleansing
foul boilers in greater proportion, according to the state of the boiler.
The tanners' extract referred. to is the extract used by tanners in the process
of tanning leather, and may be made from any bark or wood abounding in
tannic acid...
Having thus described the nature of the said Invention, which has been so com-
municated to me from abroad, I do not confine myself to any exact proportions of
the several ingredients herein specified, though I believe those to be the best which
I have described, but I claim the improved compound for preventing encrustation
in steam boilers and for cleansing such boilers when foul, made substantially as
herein more fully set forth and specified.
In witness whereof, I, the said Johann Diedrich Petersen have hereunto set
my hand and seal, this Seventh day of February, in the year of our Lord
. One thousand eight hundred and seventy-eight.
•
.
זאממ
JOHANN DIEDRICH PETERSEN.. (1.S.)