A DISINFECTING COMPOSITION TO PURIFY WATERCLOSETS & ALL INSALUBRIOUS PLACES
Year: 1858

page_text: LETTERS PATENT to Francois Charles Gilbert, residing at Paris, (Petite
Villette,) Rue du Dépotoir, 44, (Seine,) in the Empire of France, for the
Invention of "A DISINFECTING COMPOSITION TO PURIFY WATERCLOSETS
& ALL INSALUBRIOUS PLACES."
Sealed the 12th October 1858, and dated the 17th April 1858.
PROVISIONAL SPECIFICATION left by the said Francois Charles Gilbert
at the Office of the Commissioners of Patents, with his Petition, on the
17th April 1858.
I, FRANCOIS CHARLES GILBERT, residing at Paris, (Petite Villette,) Rue du
Dépotoir, 44, (Seine,) in the Empiré of France, do hereby declare the nature
of the said Invention for "A DISINFECTING COMPOSITION TO PURIFY WATER-
CLOSETS & ALL INSALUBRIOUS PLACES," to be as follows:-
This fluid is up to the present day the most economical and only one acting
powerfully on excremental matter. The above named fluid in the following
manner-To make (1,000 litres), or two hundred and four gallons={
14
22
Pure water (400 litres), or forty-two and a half gallons; sulphuric acid (150
kilogrammes), or three hundredweight; aluminous earth, proceeding from
clayey cleaving stone, (125 kilogrammes,) or two hundredweight, two quarters;
oxyde of zinc (75 kilogrammes), or one hundredweight, two quarters. After
ebullition has been produced there is an addition of pure water to regulate the
liquid to twenty-eight or thirty degrees by means of the areometer.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said François Charles Gilbert in the Great Seal Patent Office
on the 14th October 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANÇOIS
CHARLES GILBERT, residing at Paris, (Petite Villette,) Rue du Dépotoir, 44,
(Seine,) in the Empire of France, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of April, in the year of our
Lord One thousand eight hundred and fifty-eight, in the twenty-first year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said François Charles Gilbert, Her spécial licence that I, the
said François Charles Gilbert, my executors, administrators, and assigns, or
such others as I, the said François Charles Gilbert, my executors, adminis-
trators, 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 of "A DISINFECTING COMPOSITION TO PURIFY WATERCLOSETS AND
ALL INSALUBRIOUS PLACES," upon the condition (amongst others) that I, the
said François Charles Gilbert, my executors or administrators, by an instru-
ment 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said François Charles Gilbert, 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 Invention consists in the employment of certain substances for the
preparation of a solution or composition to disinfect and render inodorous
putrid, contagious, and noxious matters, gases, or vapours, either animal or
vegetable, in the following manner:-In a suitable vessel containing about
four hundred litres, or eighty-eight gallons of water, I pour about one hundred
and fifty kilogrammes, or three hundredweight of sulphuric acid, at the ordinary
degree of strength, and introduce at the same time about seventy-five
kilogrammes, or one and a half hundredweight of oxide of zinc, which I can
replace by the same quantity of oxide of iron, or by any other oxide produced

page_text: in the process of the galvanisation of iron, that is to say, mixed with iron,
zinc, lead, or tin. When ebullition or effervescence is complete, I add about
one hundred and twenty-five kilogrammes, or two and a half hundredweight
of aluminous earth, the product of an argillaceous schistus. I afterwards
dilute the composition with water to the degree required for its employment.
And having now described my Invention, and the manner of carrying the
same into effect, I wish it to be understood that I do not confine myself to the
precise proportions of the agents herein laid down; what I claim is, the
employment of the above-named agents or substances for the preparation of a
composition to disinfect and render inodorous putrid, contagious, and noxious
animal and vegetable matters, gases, or vapors, as herein-before described.
In witness whereof, I, the said François Charles Gilbert, have hereto set
my hand and seal, this Thirteenth day of October, in the year of our
Lord One thousand eight hundred and fifty-eight.
F. C. GILBERT. (L.S.)