A NEW AND IMPROVED PROCESS FOR TREATING INDIA-RUBBER, GUTTA PERCHA, AMBER, RESIN, AND OTHER VEGETABLE GUMS, AND ALSO CERAFFINE, OZOKERITE, BITUMEN, ASPHALTE, SULPHUR, AND OTHER MINERAL AND ANIMAL PRODUCTS IN ORDER TO FREE THEM FROM IMPURITIES AND RENDER THEM MORE VALUABLE FOR SOLUTIONS, VARNISHES, AND OTHER USEFUL PURPOSES
Year: 1876

page_text: LETTERS PATENT to Augustus Deiss, of Plaistow, in the County of Essex,
Analytical Chemist, and Reginald Scaife, of 19, Moorgate Street, in the City
of London, Gentleman, for the Invention of "A NEW AND IMPROVED PROCESS
FOR TREATING INDIA-RUBBER, GUTTA PERCHA, AMBER, RESIN, AND OTHER
VEGETABLE GUMS, AND ALSO CERAFFINE, OZOKERITE, BITUMEN, ASPHALTE,
SULPHUR, AND OTHER MINERAL AND ANIMAL PRODUCTS IN ORDER TO FREE
THEM FROM IMPURITIES AND RENDER THEM MORE VALUABLE FOR SOLUTIONS,
VARNISHES, AND OTHER USEFUL PURPOSES."
Sealed the 5th January 1877, and dated the 13th July 1876.
PROVISIONAL SPECIFICATION left by the said Augustus Deiss and Reginald
Scaife at the Office of the Commissioners of Patents on the 13th July
1870.
AUGUSTUS DEISS, of Plaistow, in the County of Essex, Analytical Chemist, and
REGINALD SCAIFE, of 19, Moorgate Street, in the City of London, Gentleman.
"A NEW AND IMPROVED PROCESS FOR TREATING INDIA-RUBBER, GUTTA PERCHA,
AMBER, RESIN, AND OTHER VEGETABLE GUMS, AND ALSO CERAFFINE, OZOKERITE,
BITUMEN, ASPHALTE, SULPHUR, AND OTHER MINERAL AND ANIMAL PRODUCTS IN
ORDER TO FREE THEM FROM IMPURITIES AND RENDER THEM MORE VALUABLE FOR
SOLUTIONS, VARNISHES, AND OTHER USEFUL PURPOSES."
This Invention consists in a new method of treating pure or impure gums, wax,
rubber, and gutta percha, old or new, also ceraffine, ozokerite, asphalte, sulphur,
and other mineral and animal products by means of solvents, such as bisulphate of
carbon, hydrocarbons, essential and other oils, with the assistance of steam heat,
and a great pressure varying from about 10 lbs. per inch, upwards, according to
the nature of the material under treatment, also in a filtration and a final regene-
ration of the solvent used wholly or partially, as the case may be.
For the working of this new process I use a a strong cast or wrought iron vessel,
either cylindrical or otherwise, capable of resisting 150 lbs. pressure to the square
inch, more or less. It has a manhole or other appliance at the top for loading with
the material to be treated, and an exit pipe at or near the bottom to let the solution
of the material under treatment run out into a filtering apparatus hereafter described.
This vessel is provided with a steam jacket or other appliance so as to be able to
[Price 4d.]

page_text: warm the vessel to the necessary heat for assisting the solvent to act on the
material. The solvent is inserted by means of a force pump or other appliance
into the vessel until the whole solution is thin enough to pass through a filtering
apparatus. There is also in the cylinder or vessel a stirring or agitating apparatus
so as to add mechanical assistance to the chemical action of the solvent in case of
treating material difficult of reduction, such as old vulcanised rubber, asphalte,
bitumen, and such like. The solution obtained can be ascertained by a test tap at
the bottom of cylinder or vessel.
The next operation is to run off the solution into the cylindrical or other shaped
filtering apparatus, which consists of a closed iron vessel, with a perforated bottom
containing the filtering material, such as saw dust, charcoal, bran, or any like
substances, capable of retaining the impurities of the material under treatment and
letting through the bottom exit the clarified solution of the material into an
evaporating pan or machine where, by means of steam heat, the gum or material
under treatment is freed from the solvent, which passes as vapours into a condenser
so as to be collected and re-used in next operation.
In some cases, when the material is desired to remain in a solution for such uses
as sticking waterproof glue, such as rubber solution or gutta percha solution and
the like, also in cases for producing varnishes, paints for ships' bottoms, and other
purposes, the solution is drawn off without evaporation in order to be used as a
solution. Excellent results are obtained in soine cases by mixing solutions of
different gums or bitumen for such purposes as producing cheap elastic. non-con-
ducting telegraph wire envelopes, and, for instance, ozokerite, bitumen, and mineral
gums; when so mixed with india-rubber, gutta percha, and other vegetable gums in
a small proportion the quality of the different gums mixed gives a very desirable
result as far as non-conductibility and tenacity of the material and cheapness of
production are concerned.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said. Augustus Deiss and Reginald Scaife in the Great Seal Patent Office
on the 13th January 1877.
AUGUSTUS DEISS, of Plaistow, in the County of Essex, Analytical Chemist, and
REGINALD SCAIFE, of 19, Moorgate Street, in the City of London, Gentleman.
"A NEW AND IMPROVED PROCESS FOR TREATING INDIA-RUBBER, GUTTA PERCHA,
AMBER, RESIN, AND OTHER VEGETABLE GUMS, AND ALSO CERAFFINE, OZOKERITE,
BITUMEN, ASPHALTE, SULPHUR, AND OTHER MINERAL AND ANIMAL PRODUCTS IN
ORDER TO FREE THEM FROM IMPURITIES AND RENDER THEM MORE VALUABLE FOR
SOLUTIONS, VARNISHES, AND OTHER USEFUL PURPOSES."
This Invention consists in a new method of treating or mixing pure or impure
gums, wax, rubber, and gutta percha, old or new, also ceraffine, ozokerite, asphalte,
sulphur, and other mineral and animal products by means of solvents, such as
bisulphate of carbon, hydrocarbons, essential and other oils, with the assistance of
steam or other heat, and a great pressure varying from about 10 lbs. per inch
upwards, according to the nature of the material under treatment, also in a
filtration and a final regeneration of the solvent used wholly or partially, as the
case may be, this Invention having for its object the application of the new
process to old and new materials, and in the admixture thereof for obtaining a
cheap and useful product.
For the working of this new process we use a strong cast or wrought iron
vessel, either cylindrical or otherwise, capable of resisting 150 lbs. pressure to the
square inch, more or less. It has a manhole or other appliance at the top for
loading with the material to be treated, and an exit pipe at or near the bottom to
let the solution of the material under treatment run out into a filtering apparatus

page_text: hereafter described. This vessel is provided with a steam jacket or other appliance
so as to be able to warm the vessel to the necessary heat for assisting the solvent
to act on the material. The solvent is inserted by means of a force pump or other
appliance into the vessel until the whole solution is thin enough to pass through a
filtering apparatus. There is also in the cylinder or vessel a stirring or agitating
apparatus so as to add mechanical assistance to the chemical action of the solvent
in case of treating material difficult of reduction, such as old vulcanized rubber,
asphalte, bitumen, and such like. The solutions obtained can be ascertained by a
test tap at the bottom of cylinder or vessel.
The next operation is to run off the solution into the cylindrical or other shaped
filtering apparatus, which consists of a closed iron vessel with a perforated bottom
containing the filtering material, such as sawdust, charcoal, bran, moss, or any like
substances capable of retaining the impurities of the material under treatment, and
letting through the bottom exit the clarified solution of the material into an
evaporating pan or machine, where, by means of steam heat or otherwise, the gum
or material under treatment is freed from the solvent, which passes as vapours into
a condenser so as to be collected and raised in next operation.
In some cases, when the material is desired to remain in a solution for such uses
as sticking waterproof glue or adhesive coating or lining and rubber solution or
gutta percha solution, and similar vegetable, animal, and mineral solutions like, also
in cases for producing varnishes, paints for ships' bottoms, and other purposes where
protecting coatings are required the solution is drawn off without evaporation in
order to be used as a solution. Excellent results are obtained in some cases by
mixing solutions of different gums or bitumen in order to produce new and
improved gums for such purposes in producing cheap elastic non-conducting
telegraph wire and other protecting envelopes, and, for instance, ozokerite, bitumen,
and animal guns when so mixed with india-rubber, gutta percha, and other
vegetable gums in a small proportion, the quality of the different gums so mixed
gives a very desirable result as far as non-conductibility and tenacity of the
material and cheapness of production are concerned.
Having thus described the nature and object of our said Invention we declare
that what we claim and desire to be secured to us by the herein-before in part
recited Letters Patent is, the new and improved process for treating india-rubber,
gutta percha, amber, resin, and other vegetable gums, and also ceraffine, ozokerite,
bitumen, asphalte, sulphur, and other mineral and animal products in order to froe
them from impurities and render them more valuable for solutions, varnishes, and
other useful purposes, substantially as herein-before described, or any mere
modification thereof.
In witness whereof, we, the said Augustus Deiss and Reginald Scaife, have
hereunto set our hands and seals this Twelfth day of January in the year
of our Lord One thousand eight hundred and seventy-seven.
AUG. DEISS.
L.S.
REGINALD SCAIFE. (L.S.)