A NEW PRODUCT, FOR PREVENTING INCRUSTATION IN STEAM BOILERS
Year: 1882

page_text: LETTERS PATENT to William Edward Gedge, of No 11 Wellington Street,
Strand, London, in the County of Middlesex, Patent Agent, for an Invention
of "A NEW PRODUCT, FOR PREVENTING INCRUSTATION IN STEAM BOILERS
A communication to him from abroad by Joseph Boissié, of Paris, France,
"
PROVISIONAL SPECIFICATION left by the said William Edward Gedge at
the Office of the Commissioners of Patents on the 1st August 1882.
WILLIAM EDWARD GEDGE, of No 11 Wellington Street, Strand, London in
the County of Middlesex, Patent Agent, "A NEW PRODUCT, FOR PREVENTING
INCRUSTATION
IN STEAM BOILERS A communication to me from abroad by
Joseph Boissié, of Paris, France,
This Invention relates to a novel product for preventing incrustation in steam
boilers, and which results from the intimate admixture of potato combined' with
muriatic acid.
It is prepared in the following manner:
The potato is first thoroughly pounded or crushed, and is then intimately
mixed with the ordinary muriatic acid of commerce, in about the following
proportions, say eighty five per cent by weight of potato with twenty per cent by
weight of muriatic acid.
The mixture thus prepared constitutes a product which, by reason of its liquidity,
is neither conveniently carried nor applied. It is therefore desirable to add to it
an inert body which will increase its consistency.
Many inert bodies may be used for this purpose; that which is found to give
good results and which is now preferably used, is the wheaten flour of inferior
quality known as "seconds" which is added progressively to the mixture until
the required consistency is obtained.
In this form; the product may be easily and conveniently transported in casks,
or otherwise.
To prevent incrustation this product, is used in the proportion of 200 grammes
(say 7 ozs) to one cubic meter (say 40 cubic inches) of water. This dose however
varies within certain limits according to the degree of impurity, of the feed water.
When a boiler is already incrusted, by increasing the dose to 250 grammes
(say 9 ozs) to the cubic meter a great part, if not the whole of the tartar becomes
detached.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Edward Gedge in the Great Seal Patent Office on the
25th January 1883.
186
WILLIAM of Middlesex, Patent Agent,
EDWARD GEDGE, of N° 11 Wellington Street, Strand, London, in
A NEW PRODUCT FOR PREVENTING
A Communication to me from abroad by
the County
INCRUSTATION IN STEAM
BOILERS
Joseph Boissie, of Paris, France,
"
This Invention relates to a novel product for preventing incrustation in steam
boilers and which results from the intimate admixture of potato combined with
muriatic acid.
It is prepared in the following manner :-
The potato is first thoroughly pounded or crushed, and is then intimately mixed
with ordinary muriatic acid of Commerce in about the following proportions; say
eighty five per cent, by weight, of potato, with twenty per cent, by weight, of
muratic acid.
The mixture thus prepared constitutes a product, which, by reason of its liquidity,
is neither conveniently carried or applied. It is therefore desirable to add to it an
inert body which will increase its consistency.
Many inert bodies may be used for this purpose; that which is found to give
good results and which is now preferably used is the wheaten flour of inferior
quality, which is added progressively to the mixture until the required consistency
is obtained.
In this form, the product may be easily and conveniently transported in casks,
or otherwise.
To prevent incrustation this product is used in the proportion of 200 grammes
(say 7 ozs) to one cubic meter (say 40 cubic inches) of water. This dose however
varies within certain limits according to the degree of impurity of the feed water.
When a boiler is already incrusted, by increasing the dose to 250 grammes
(say 9 ozs) to the cubic meter, a great part if not the whole of the tartar becomes
detached.
Having now described and ascertained the nature of the Invention communi-
cated to me as aforesaid and in what manner the same is or may be performed.
I Claim as secured to me by the hereinbefore in part recited Letters Patent:-
· The use of a new product for preventing incrustation in Steam Boilers, composed
essentially of a mixture of crushed potatoes and Muriatic Acid in the approximative
proportions above given; greater consistency being given to this mixture by the
addition of an inert body such as inferior quality wheaten flour or any other
equivalent, substantially as herein before described
In witness whereof I the said William Edward Gedge have hereunto set
my hand and seal this Twenty fifth day of January in the year of Our
Lord One thousand Eight hundred and Eighty three.