AN IMPROVED COMPOSITION FOR SPLITTING ROCK
Year: 1859

page_text: LETTERS PATENT to Amédée Etienne Charles Joseph Reynaud de Trets, of
Marseilles, in the French Empire, Gentleman, for the Invention of
"AN IMPROVED COMPOSITION FOR SPLITTING ROCK."
Sealed the 15th November 1859, and dated the 17th May 1859.
PROVISIONAL SPECIFICATION left by the said Amédée Etienne Charles
Joseph Reynaud de Trets at the Office of the Commissioners of Patents,
with his Petition, on the 17th May 1859.
I, AMÉDÉE ETIENNE CHARLES JOSEPH REYNAUD DE TRETS, of Marseilles, in
the French Empire, Gentleman, do hereby declare the nature of the said
Invention for "AN IMPROVED COMPOSITION FOR SPLITTING ROCK," to be as
follows:-
This composition is formed of nitrate of soda, spent tan, and powdered
sulphur, in the proportions of 52.5 parts of the soda, 27.5 parts of the tan,
and 20 parts of the sulphur prepared in the following manner :-Dissolve the
nitrate of soda in a sufficient quantity of water over a fire, and boil; mix
the tan in the solution until every portion is impregnated with it, and then the
sulphur in the same manner. Remove the composition from the fire and dry
it; when completely dry, enclose it in casks or bags. The composition is ready
for immediate use.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Amédée Etienne Charles Joseph Reynaud de Trets in the
Great Seal Patent Office on the 17th November 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AMEDEE
ETIENNE CHARLES JOSEPH REYNAUD DE TRETS, of Marseilles, in the French
Empire, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of May, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Amedée Etienne Charles Joseph Reynaud de Trets, Her special
licence that I, the said Amedée Etienne Charles Joseph Reynaud de Trets,
my executors, administrators, and assigns, or such others as I, the said Amedée
Etienne Charles Joseph Reynaud de Trets, 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 COMPOSITION FOR SPLITTING ROCK," upon the
condition (amongst others) that I, the said Amedée Etienne Charles Joseph
Reynaud de Trets, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly 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 Amedée Etienne Charles Joseph
Reynaud de Trets, 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 thereof, that is to say :-
This composition is formed of nitrate of soda, spent tan, and powdered
sulphur, in (or about) the proportions of 52.5 parts of the soda, 27.5 parts of
the tan, and 20 parts of the sulphur prepared in the following manner:-
Dissolve the nitrate of soda in a sufficient quantity of water over a fire, and
boil; mix the tan in the solution until every portion is impregnated with it
and then the sulphur in the same manner. Remove the composition from the
fire and dry it; when completely dry, euclose it in casks or bags. The com
position is ready for immediate use,

page_text: And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, the improved
composition for splitting rock, herein-before described.
In witness whereof, I, the said Amedée Etienne Charles Joseph Reynaud
de Trets, have hereunto set my hand and seal, this Eleventh day of
November, One thousand eight hundred and fifty-nine.
0
A. E. C. J. REYNAUD DE TRETS. (L.S.)
Witness,
CH. ARMENGAUD, jeune,
Ing. Civil,
Boulevard de Strasbourg, No. 23,
à Paris.