IMPROVED RESIN AND RESINOUS SUBSTANCES
Year: 1859

page_text: LETTERS PATENT to Rudolph Bodmer, of 2, Thavies Inn, Holborn, in
the City of London, for the Invention of "IMPROVED RESIN AND RESINOUS
SUBSTANCES." A communication from Mr. Jean Creuseton, residing at
Paris, in the Empire of France.
Sealed the 25th March 1859, and dated the 25th January 1859.
PROVISIONAL SPECIFICATION left by the said Rudolph Bodmer at the
Office of the Commissioners of Patents, with his Petition, on the 25th
January 1859.
I, RUDOLPH BODMER, of 2, Thavies Inn, Holborn, in the City of London,
do hereby declare the nature of the said Invention for "IMPROVED RESIN
AND RESINOUS SUBSTANCES," (a communication), to be as follows:-
This Invention is an improvement upon an Invention. in respect of which
Letters Patent were on the 27th day of April 1858 granted to Edward Hunt
and Henry Davis Pochin. The improvement consists in the production from
the materials there specified, of substances purified, clarified, and deprived of
their colour in a higher, degree than is attainable by such Invention. The
means by which this improvement is effected is to apply water and other
artificial elements of refrigeration to the exit pipe or exit pipes connected with
the still employed in the distillation of the said materials, as well as to the
receivers into which the products of the said distillation subsequently pass.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Rudolph Bodmer in the Great Seal Patent Office on the
25th July 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RUDOLPI
BODMER, of 2, Thavies Inn, Holborn, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of January, 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 Rudolph Bodmer, Her special licence that I, the said Rudolph
Bodmer, my executors, administrators, and assigns, or such others as
I, the said Rudolph Bodmer, 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
"IMPROVED RESIN AND RESINOUS SUBSTANCES," (a communication from Mr. Jean
Creuseton, residing at Paris, in the Empire of France,) upon the condition
(amongst others) that I, the said Rudolph Bodmer, my executors or admi-
nistrators, 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 Rudolph Bodmer, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (that is to say) :-
This Invention is an improvement upon an Invention in respect of which
Letters Patent were on the 27th day of April 1858 granted to Edward Hunt
aud Henry Davis Pochin. By following the process described in the Specifi-
cation filed in pursuance of the last-mentioned Letters Patent, I have in-
variably found the distilled products to contain a considerable amount of color.
This I attribute to the fact of the vapor evolved from the raw material being
kept during its passage from the still head to the receiver at a temperature
almost as high as that necessary for volatilizing the said raw materials, and I
have every reason to believe that if the particles immediately upon assuming

page_text: the form of vapor could be introduced into a comparatively very low tempe-
rature, the distilled matter would have no deeper color than that of the finest
virgin rosin; with a view, therefore, to getting rid of the color from the distilled
product, I commence the reduction of the temperature at a much earlier stage
of the process than is practicable by means of the apparatus described in the
said Specification of the said Messrs. Hunt and Pochin. This I effect by a
peculiar modification of such apparatus, which enables me to reduce the tem-
perature of the said vapor immediately upon its issuing from the still head.
This modification consists in the addition of a jacket or case to the issue pipe,
and the arrangement in connection of apparatus furnishing therewith a
constant supply of water or other refrigeratory medium. The forms of appa-
ratus particularly described in the said Specification of Messrs. Ilunt and
Pochin are all well adapted for carrying out my said improvement. The
receivers and conducting pipes I prefer constructing of copper, but any other
substance may be used for that purpose, provided it be such as to be insensible
to the action of the vapor produced in the course of the distillation.
Having thus described the nature of the said Invention, and the best means
with which I am acquainted for performing the same, I would have it under-
stood that the essential feature in this Invention consists in the reduction of
the temperature of the products of evaporation immediately on their issuing
from the still head, and I claim, subject to the license of the said Messrs. Hunt
and Pochin in respect of their said previous Invention, the sole right to make,
usc, exercise, and vend resins and resinous substances manufactured according
to the process herein-before described.
In witness whereof, I, the said Rudolph Bodmer, have hereunto set my
hand and scal, this Twenty-second day of July, in the year of our
Lord One thousand eight hundred and fifty-nine.
RUDOLPH BODMER. (L.S.)