AN IMPROVED COMPOUND FOR DISINFECTING AND DEODORIZING
Year: 1871

page_text: LETTERS PATENT to Henry Augustus Tilden, of New Lebanon, in
the State of New York, United States of America, for the Invention
of "AN IMPROVED COMPOUND FOR DISINFECTING AND DEODORIZING."
Sealed the 26th January 1872, and dated the 15th November 1871.
PROVISIONAL SPECIFICATION left by the said Henry Augustus Tilden
at the Office of the Commissioners of Patents, with his Petition,
on the 15th November 1871.
I, HENRY Augustus Tilden, of New Lebanon, in the State of New
York, United States of America, do hereby declare the nature of the
said Invention for "AN IMPROVED COMPOUND FOR DISINFECTING AND DEO-
DORIZING," to be as follows:-
My compound is made with bromine, chlorine, and aluminium, and
possesses powerful alterative, antiseptic, styptic, deodorizing, and dis-
infecting qualities. Chloride of aluminium has been heretofore employed
for deodorizing and disinfecting. Bromine possesses powerful antiseptic,

page_text: alterative, and deodorizing properties. I have discovered that when
bromide of aluminium is combined with chloride of aluminium, as in
my compound, the aforesaid properties are largely increased and de-
veloped, producing an article that has superior properties for the uses.
and purposes heretofore stated.
My compound is prepared by action of the sulphate of alumina
upon the mixed solution of chloride of calcium and bromide of
magnesium, or other bromide salts, in the proportion of 8 parts of
the chloride salt to one 1 part of the bromide salt, thereby producing
chloride and bromide of aluminium with the sulphate of lime and
sulphate magnesia or other salts, which latter salts are separated by
precipitation and crystallization, and is based upon certain reciprocal
chemical actions and combining chemical equivalents.
It may be produced by direct combination of the several salts or from
any resulting waste products or water in chemical or industrial works, -
or from any natural waters that may contain bromine, chlorine, iodine,
or any salts of the same.
It may also be produced by the action of hydrochloric acid upon
alumina combined with bromide of aluminium, which may be made
either by the action of a bromide salt upon an alumina salt or by the 2
means of hydrobromic acid upon alumina.
I prefer to make this compound up in a liquid form, but it may be in
the form of a salt and combined with an inert salt, such as sulphate of
lime to prevent deliquescence.
Iodine may be added to this compound as iodide of aluminium or its
other salts; but I do not limit myself to its use, nor to the precise
proportions of the bromide and chloride salts stated.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of November, in the
year of our Lord One thousand eight hundred and seventy-one, in the
year of Her reign, did, for Ḥerself, Her heirs and successors,
give and grant unto me, the said Henry Augustus Tilden, Her special
adminis-
licence that I, the said Henry Augustus Tilden, my executors,
trators, and assigns, or such others as I, the said Henry Augustus
Tilden, 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 COMPOUND FOR DISINFECTING AND DEODORIZING," upon the con-
dition (amongst others) that I, the said Henry Augustus Tilden, 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 Patent.
NOW KNOW YE, that I, the said Henry Augustus Tilden, do hereby
declare the nature of my, said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by
the following statement (that is to say):
-
My compound is made with bromine, chlorine, and aluminium, and
possesses powerful alterative, antiseptic, styptic, deodorizing, and dis-
infecting properties. Chloride of aluminium has been heretofore employed
for deodorizing and disinfecting. Bromine possesses powerful antiseptic,
alterative, and deodorizing properties. I have discovered that when
bromide of aluminium is combined with the chloride of aluminium, as in
my compound, the aforesaid properties are largely increased and de-
veloped, producing an article that has superior properties for the uses
and purposes heretofore stated.
My compound is prepared by action of the sulphate of alumina upon
5 the mixed solutions of chloride of calcium and bromide of magnesium
or other bromide salts, in the proportion of eight (8) parts of the chloride
salt to one (1) part of the bromide salt, thereby producing chloride and

page_text: HENRY A. TILDEN. (L.S.)
Witnesses,
JAMES WALLACE, of New Lebanon, N. Y.
S. J. TILDEN,
"
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