AN IMPROVED PREPARATION FOR THE PREVENTION OR DISINTEGRATION OF SOLID DEPOSITS OR INCRUSTATIONS IN STEAM BOILERS
Year: 1873

page_text: LETTERS PATENT to Edward Primerose Howard Vaughan, F.0.8., of
54, Chancery Lane, in the County of Middlesex, Patent Agent, for
the Invention of "AN IMPROVED PREPARATION FOR THE PREVENTION OR
DISINTEGRATION OF SOLID DEPOSITS OR INCRUSTATIONS IN STEAM BOILERS."
-A communication from abroad by Isaac Bernhard, residing at
Paris, in the Republic of France.
-
Sealed the 15th May 1874, and dated the 20th November 1873.
PROVISIONAL SPECIFICATION left by the said Edward Primerose
Howard Vaughan at the Office of the Commissioners of Patents,
with his Petition, on the 20th November 1873.
I, EDWARD PRIMEROSE HOWARD VAUGHAN, F.C.S., of 54, Chancery
Lane, in the County of Middlesex, Patent Agent, do hereby declare
the nature of the said Invention for "AN IMPROVED PREPARATION FOR THE
PREVENTION OR DISINTEGRATION OF SOLID DEPOSITS OR INCRUSTATIONS IN STEAM.
BOILERS," a communication to me from abroad by Isaac Bernhard, residing
at Paris, in the Republic of France," to be as follows :—
This Invention has for its object the production of an anti-calcareous
preparation, which being dissolved in the water of steam boilers prevents

page_text: the formation of solid deposits or incrustations on the metal thereof or
disintegrates those already formed.
To this end I dissolve in say twenty-five gallons of water two hundred
pounds weight of glue cor other easily soluble animal gelatine of like
description, and mix therewith one hundred pounds of ox or other
animal gall, to which is added say from one to two pounds of phenate
of soda " (phénol), or other suitable antiseptic. The mixture thus
formed is run off into moulds moulds, and when solidified by cooling is
ready for use.
A certain quantity of this preparation, say in ordinary cases one ounce
avoirdupoids per horse-power of the boiler, being dissolved in the water
of the latter once every eight days reduces to a pulverulent state and
maintains in suspension the saline or calcareous matters, which would
otherwise be deposited as incrustations on the metal.
Even incrustations already formed are disintegrated and detached by
the action of the compound so as to become easily removeable as a
pulverulent sediment on emptying the boiler.
The quantity of the anti-calcareous matter to be added to the boiler is
of course variable, according to the nature of the feed water, but, as
above stated, one ounce per horse-power per week will generally be
found sufficient.
In certain cases the above indicated proportions of glue or analogous
materials may when necessary be reduced to a certain extent, but as a
rule these proportions will be found to give the best results in
practice.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Primerose Howard Vaughan in the Great
Seal Patent Office on the 19th May 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
PRIMEROSE HOWARD VAUGHAN, F.C.S., of 54, Chancery Lane, in the
County of Middlesex, Patent Agent, send greeting.

page_text: year of our Lord One thousand eight hundred and seventy-three, in the
year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Edward Primerose Howard
Vaughan, Her special licence that I, the said Edward Primerose
Howard Vaughan, my executors, administrators, and assigns, or such
others as I, the said Edward Primerose Howard Vaughan, my
executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVED PREPARATION FOR THE PREVENTION OR DISINTEGRATION OF SOLID
DEPOSITS OR INCRUSTATIONS IN STEAM BOILERS," (a communication to me
from abroad by Isaac Bernhard, residing at Paris, in the Republic of
France), upon the condition (amongst others) that I, the said Edward
Primerose Howard Vaughan, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters

page_text: A certain quantity of this preparation, say in ordinary cases, one
ounce avoirdupoids per horse-power of the boiler being dissolved in the
water of the latter once every eight days, reduces to a pulverulent state,
and maintains in suspension the saline or calcareous matters, which
would otherwise be deposited as incrustations on the metal.
Even incrustations already formed are disintegrated and detached by
the action of the compound so as to become easily removeable as a
pulverulent sediment on emptying the boiler.
The quantity of the anti-calcareous matter to be added to the boiler
is of course variable, according to the nature of the feed water, but as
above stated one ounce per horse-power per week will generally be found
sufficient.
In certain cases the above-indicated proportions of glue or analogous
materials may when necessary be reduced to a certain extent, but as a
rule these proportions will be found to give the best results in 1
practice.
Having thus described the nature of the said Invention, and the
manner of carrying the same into effect, I declare that what I claim and
desire to protect by Letters Patent is a compound for preventing and
removing incrustations of steam boilers, consisting of the combination 2
of animal gall with glue or other animal gelatine and phenol in the
proportions substantially as herein set forth.
In witness whereof, I, the said Edward Primerose Howard Vaughan,
have hereto set my hand and seal, this Nineteenth day of
May, in the year of our Lord One thousand eight hundred and 2
seventy-four.
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