Year: 1854

page_text: LETTERS PATENT to Jean Baptiste Numa Erard, of Paris, in the Empire
of France, and of 4, South Street, Finsbury, London, Gentleman, for

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by
the said Jean Baptiste Numa Erard in the Great Seal Patent Office on
the 6th December 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JEAN
BAPTISTE NUMA ERARD, of Paris, in the Empire of France, and of 4, South
Street, Finsbury, London, Gentleman, send greeting.
WHEREAS Her most- Excellent-Majesty Queen Victoria, by "Her-Letters.
Patent, bearing date the Ninth day of June, in the year of our Lord One
thousand cight hundred and fifty-four, in the seventeenth year of Her reign,
lid, for Herself, Her heirs and successors, give and grant unto me, the said
Jean Baptiste Numa Erard, Her special license that I, the said Jean Baptiste
Numa Erard, my executors, administrators, and assigns, or such others as
I, the said Jean Baptiste-Numa Erard, 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 Inven-
tion for "IMPROVEMENTS IN THE PREPARATION OF PAINT," upon the condition
(amongst others) that I, the said Jean Baptiste Numa Erard by an in-
strument in writing under my hand and seal, 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 Jean Baptiste Numa Erard, do hereby
declare the nature of my said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by the
following statement, that is to say:-
The Invention consists in mixing with the oils usually employed for pre-
paring paint for buildings, a composition which I call collocirium, for giving
brilliancy and durability to the paint, and which is manufactured as follows:-
I mix about two pounds and a half of a composition which I call caustic,
and which is made of four hundred and sixty grains, troy, virgin wax, seventy-
five grains dry white soap, one hundred and fifty grains of salt of tartar, and
about four glasses of water, with about one hundred and fifty grains, troy, of
rosin, one hundred and fifty grains of gum lac, one hundred and fifty grains of
gum arabic, one hundred and fifty grains of gum galipot, seventy-five grains
of gum copal, one hundred and fifty grains of borax.
This composition may also be prepared with only one of the gummy sub-
stances above described for the preparation of the collocirium; in which
case, in lieu of one hundred and fifty grains, troy, as above described, six
hundred grains, troy, of the substance must be employed.
The mixture is effected by the application of heat, and when the composition
is cold it is mixed with the oils generally employed for preparing paint, in the
proportion of one-third of collocirium to two-thirds of oil, which mix perfectly
together.
And baving now described the nature of my said Invention, and the
manner of carrying the same into effect, I would have it understood that
I do not confine myself to the precise proportions herein laid down; but what
I claim is, the mixing with oils generally employed for preparing paint a
composition which I call "collocirium," prepared as herein-before described,
for giving brilliancy and durability to paint for buildings.
In witness whereof, I, the said Jean Baptisto Numa Erard, havo here-
unto set my hand and seal, this Twenty-ninth day of November, in
the year of our Lord One thousand eight hundred and fifty-four.
LEAN DA DTISTE NIIMA EDADD
JEAN BAPTISTE NUMA ERARD (L.C.)