Improvements in the Process of Cleaning and Extracting Oil and Grease from Cotton Waste and other Fibrous Materials.
Year: 1892

page_text: Date of Application, 29th Nov., 1892
Complete Specification Left, 29th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Process of Cleaning and Extracting Oil and
Grease from Cotton Waste and other Fibrous Materials.
I, JOSEPH DAVID BARNETT, of 41 Bedford Square, in the County of
Middlesex, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in the invention for which Letters
Patent were granted to Baron David Barnett, No. 1652, A.D. 1890, for
Improvements in the process of cleaning and extracting oil and grease from
cotton waste and other fibrous materials.'
66
In the Specification of the said Letters Patent, the use of petroleum or other
liquid hydrocarbon was described and claimed, for the purpose of cleaning cotton
waste or other material from oil or greasy dirt, and my present invention consists
in the substitution of silicate of soda for the petroleum or other liquid hydro-
carbon described.
In order to put the invention in operation, I add silicate of soda in the
proportion of about 2 cwts. to each ton of the dirty waste or other fibrous
material to be treated, in a closed vessel to which steam under sufficient pressure
is admitted, the contents of the vessel being agitated by causing the latter to
revolve upon hollow trunnions through which the steam is admitted.
Or apparatus of the kind described and shewn in the Specification of the Letters
Patent already referred to may be used, or other suitable apparatus for the same
purpose.
The necessary manholes and openings are provided for the introduction and
removal of the materials, which are kept under the treatment described for a
sufficient time, ordinarily about eight hours.
The waste may then be pressed, and is washed in water or in a bath such as
that described in the Specification of the said former Letters Patent, in a washing
machine of any of the ordinary well known kinds, and when sufficiently clean it is
then dried and is fit for use.
I do not confine myself to the exact proportion of the silicate of soda used,
which may be increased or diminished according to the character of the material
being treated, and the details of the process may be varied more or less as may be
found advisable.
ليوم
1
ẢNh: 1009
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Process of Cleaning and Extracting Oil and
Grease from Cotton Waste and other Fibrous Materials.
I, JOSEPH DAVID BARNETT, of 41 Bedford Square, in the County of
Middlesex, Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, that is to say :-
:-
My present invention relates to improvements in the invention for which
Letters Patent were granted to Baron David Barnett, No. 1652 A.D. 1890, for
Improvements in the process of cleaning and extracting oil and grease from
cotton waste and other fibrous materials."
68

page_text: In the Specification of the said Letters Patent, the use of petroleum or other
liquid hydrocarbon was described and claimed, for the purpose of cleaning cotton
waste or other material from oil or greasy dirt, and my present invention consists
substantially in the substitution of silicate of soda for the petroleum or other
liquid hydrocarbon described in the said Specification.
In order to put the invention in operation I add silicate of soda in the proportion
of about 2 cwts. to each ton of the dirty waste or other fibrous material to be
treated, in a closed vessel to which steam under sufficient pressure is admitted, the
contents of the vessel being agitated by causing the latter to revolve upon hollow
trunnions through which the steam is admitted.
Or apparatus of the kind described and shewn in the Specification of the Letters
Patent already referred to may be used, or other suitable known apparatus for the
same purpose.
The necessary manholes and openings are provided for the introduction and
removal of the materials, which are kept under the treatment described for a
sufficient time, ordinarily about eight hours.
The waste may then be pressed, and it is washed in water or in a path such as
that above described, in a washing machine of any of the ordinary well known
kinds, and when sufficiently clean it is then dried and is fit for use.
I do not confine myself to the exact proportion of the silicate of soda used,
which may be increased or diminished according to the character of the material
being treated, and the details of the process may be varied more or less as may be
found advisable.
The oil and grease separated from the waste may be collected, purified, and sold
or used.
By my invention, cotton waste, and other fibrous material, containing oil or
grease, can be quickly, cheaply and effectually cleaned, and after having been so
cleaned is equal in quality to new material.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The use of silicate of soda, for the purpose of cleaning and extracting oil
and grease from cotton waste and other fibrous materials, substantially in the
manner described.
2. The process of cleaning cotton waste or other material from oil and grease,
by treating such material in a vessel containing silicate of soda under steam
pressure, the contents of the vessel being stirred or agitated during such treatment,
and the material being then pressed, washed, and dried, substantially as
described.
Dated this 28th day of August 1893.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.