A NEW OR IMPROVED METHOD OF TREATING MATERIAL COMPOSED OF VEGETABLE AND ANIMAL MATTER WHEREBY THE VEGETABLE MATTER IS EXTRACTED AND
Year: 1882

page_text: LETTERS PATENT to George Tolson and John Edwin Tolson both of Dewsbury
in the County of York Wool Carbonizers for an Invention of "A NEW OR
IMPROVED METHOD OF TREATING MATERIAL COMPOSED OF VEGETABLE AND
ANIMAL MATTER WHEREBY THE VEGETABLE MATTER IS EXTRACTED AND THE
PROVISIONAL SPECIFICATION left by the said George Tolson and John
Edwin Tolson at the Office of the Commissioners of Patents on the
24th November 1882.
GEORGE TOLSON and JOHN EDWIN TOLSON both of Dewsbury in the county of
York Wool Carbonizers
"A NEW OR IMPROVED METHOD OR TREATING
MATERIAL COMPOSED OF VEGETABLE AND ANIMAL MATTER WHEREBY THE VEGETABLE
MATTER IS EXTRACTED AND THE ANIMAL MATTER DYED ALSO FOR APPARATUS
EMPLOYED THEREIN,
This invention relates to a new method of disintegrating or effecting the separa-
tion of vegetable matter from the animal matter in material composed of a mixture
of such substances such invention being principally applicable to mixtures of cotton
and wool or woollen fibres
The apparatus employed in carrying out this process consists of a revolving tank
in which the material is placed and underneath which is a fire for keeping the same
at the required temperature.
In connexion with the revolving tank is a retort or still for the manufacture of
the gases requisite for carrying out the operations.
The disintegration of the material is effected by admitting acid such as hydro-
chloric or sulphurous in a gaseous state into the tank and when this process has

page_text: been carried out to a sufficient extent we admit a sufficient quantity of alkaline gas
to neutralize the acid gas remaining in the animal fibres which are thus returned to
their original condition
The operation of dyeing the animal fibres is then performed by the introduction
of gases derived from nitric oxalic, sulphuric or pyrolignic acid or from a mixture
of these or other suitable acids or other chemical substance or colouring matter.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Tolson and John Edwin Tolson in the Great Seal Patent
"Office on the 24th May 1883.
- GEORGE TOLSON and JOHN EDWIN TOLSON both of Dewsbury in the County of
York, Wool Carbonizers "A NEW OR JMPROVED METHOD OF TREATING
MATERIAL COMPOSED OF VEGETABLE AND ANIMAL MATTER WHEREBY THE VEGETABLE
MATTER IS EXTRACTED AND THE ANIMAL MATTER DYED, ALSO FOR APPARATUS
EMPLOYED THEREIN
This Invention relates to a new method of disintegrating or effecting the
separation of vegetable inatter from the animal matter in material composed of a
mixture of such substances, such Invention being principally applicable to mixtures
of cotton and wool or woollen fibres. The apparatus employed in carrying out
this process consists of a revolving tank in which the material is placed, and under-
neath which is a fire or steam heating apparatus for. keeping the same at the
required temperature. In connection with the revolving tank is a retort or still
for the manufacture of the gases requisite for carrying out the operations.
In order that the invention may be more fully understood we have hereto
annexed a sheet of Drawings illustrative thereof. A is the revolving tank or
receiver having hollow axes or bushes B on which are formed discs C.
The tank revolves upon the friction pullies D which are supported by the
masonry E. F is the driving pulley mounted on the shalt & which passes through
the metal bearing H and is secured within the bush B. J is a retort or still which
is charged or filled from the top side and communicates with the tank by means of
the pipe K which is enamelled on the inner surface to prevent the injurious effect
of the acids thereon. The tank (the interior of which is provided with three sets of
spikes) may be heated either by fire or steam pipes L.
The material to be disintegrated is placed in the tank which is then hermetically
sealed and heated sufficiently to prevent the gases introduced thereto from
condensing. The retort is then charged with equal quantities of sulphuric acid
and chloride of sodium or common salt and the gas evolved passes into the tank
and destroys the vegetable matter contained in the materials under operation.
After a period varying from 20 to 40 minutes the disintegration is generally
complete and the material may be removed from the tank and shaken for the

page_text: purpose of getting rid of the refuse vegetable matter. To neutralize the acid gas
remaining in the woollen the material is placed in the tank as before and the gas
arising from the distillation of silicate of ammonia or substances containing the
elements thereof is passed into the tank. It is better to prepare this gas in a
seperate still or retort heated by a steam jet and provided with an agitator, the gas
being conveyed to the tank by a leaden pipe connected with the pipe K. The
material may then be dyed by placing in the retort a mixture of common salt and
nitrate of soda to which may be added picric acid, bichromate or other salts of
potassium and analine cristals containing colouring matter.
Having now shown and described our Invention and the manner of carrying the
same into practice, we would have it understood that we do not confine ourselves to
the precise details herein shewn and described, but what we claim is.
The method of and apparatus for disintegrating materials composed of vegetable
and animal fibres, neutralizing the acid remaining in the animal portion and dyeing
the same by the action of dry gases as herein shewn and described
In witness whereof we the said George Tolson and John Edwin Tolson have
hereunto set our hands and seals this twenty first day of May in the year
of our Lord One thousand eight hundred and eighty three.
GEORGE TOLSON
(L.S.)
JOHN EDWIN TOLSON (LS.)