Obtaining Products therefrom.
Year: 1886

page_text: Obtaining Products therefrom.
I CHARLES O'NEILL of Denmark Road Manchester in the County of Lancaster
Analytical Chemist, do hereby declare the nature of my invention for IMPROVED
APPARATUS AND METHOD OF TREATING COTTON WASTE WHICH HAS BEEN USED BY
LITHOGRAPHIC AND LETTERPRESS PRINTERS, AND OBTAINING PRODUCTS THEREFROM
to be as follows:-
This invention relates to the cotton waste used in Lithographic and other styles
of printing for cleaning the colours or inks from the rollers used in the process of
printing, the cotton waste is used in conjunction with turpentine or other similar
solvents of oily matters for cleaning the inking rollers, and this invention consists
of an improved method of treating such used waste and of an arrangement of
apparatus for receiving a portion of the turpentine or other volatile matter which
has been used.
The dirty waste containing the turpentine, and other matters is placed upon a
grid or perforated metal plate near the bottom of a metallic vessel of suitable
dimensions and resembling in shape and arrangement a vertical boiler or a bleaching
kier. When the vessel is charged with the dirty waste it is closed excepting a
pipe at the upper part connected with a condensing arrangement. Steam is then
admitted below the plate or grid upon which the waste rests, the steam in passing
upwards through the waste carries with it the turpentine and other volatile bodies
in the state of vapour which in the condenser became liquid along with the water
from the steam; the water and turpentine are received into a separating vessel
from which the turpentine is subsequently removed.
The cotton waste, after the removal of the turpentine, or volatile solvents may
then be subjected to any of the well known methods of cleaning it for use over
again.

page_text: Improved Apparatus and Method of Treating Cotton Waste which
has been used by Lithographic and Letterpress Printers, and
Obtaining Products therefrom.
I CHARLES O'NEILL of Denmark Road Manchester in the County of Lancaster
Analytical Chemist do hereby declare the nature of my invention for "IMPROVED
وو
APPARATUS AND METHOD OF TREATING COTTON WASTE WHICH HAS BEEN USED BY
LITHOGRAPHIC AND LETTER-PRESS PRINTERS AND OBTAINING PRODUCTS THEREFROM
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
-
This invention relates to the cotton waste used in Lithographic and other styles
of printing, for cleaning the colors or inks from the rollers and stones employed in
the process of printing.
This cotton waste is used in conjunction with turpentine or other similar
solvents of oily matters for cleaning the inking rollers, and it has then, without
further treatment been hitherto destroyed by burning.
My invention consists of an improved method of treating such used waste and
of an arrangement of apparatus for recovering a portion of the turpentine or other
volatile matter which has been employed, and the same will be readily understood
upon reference to the accompanying drawing and from the following description.
A, is a vessel made of thin boiler plate or other suitable material and resembling
in shape and arrangement a vertical boiler or a bleaching kier.
It is provided with a man hole b for the introduction of the waste to be treated,
and with a perforated plate or grid or other false bottom c upon which the said
waste rests.
d is a steam inlet tap or valve below the perforated plate c; e is an outlet tap
or valve for letting off accumulating water; and f is an outlet near the top of the
vessel A, in communication with a condensing worm or coil g contained in the
vessel B, C is the recipient vessel into which the condensed liquids run.
The treatment in this apparatus is as follows.
The dirty waste containing the turpentine and other matters having been
introduced into a vessel A, the man-hole b is closed and steam is admitted through
the tap or valve & beneath the said waste, through which it passes carrying with
it the turpentine and other volatile bodies in the state of vapor, which passes.
through the outlet f and into the condensing coil g. The steam and other vapor
become liquid in the condenser, and the resulting water and turpentine flow
through a suitable pipe h into the receiving vessel C.
This vessel C is by preference provided with a tap i near the top thereof, and
a pipe open at both ends, the lower end being covered with water.
The liquids
separate in the vessel C, by their different specific gravities; the turpentine (or
other volatile oils) being lighter than water, and not mixible therewith, floats on
the top and can be removed from time to time by the tap i while the water may
be withdrawn from the pipe k.

page_text: I would here remark that I do not wish to confine myself to the exact details of
construction shown and described as they may be considerably varied.
Instead of treating the waste with steam in the vessel A, water or water mixed
with chemicals may be used, and the vessel heated to boil the same, but I prefer
the above described treatment by steam as giving the greater yield of turpentine
or other volatile oil.
The cotton waste may, after the above treatment, be subjected to any of the
well known methods of cleansing for future use.
It will be understood that the term cotton-waste includes not only waste cotton
fibre or yarn but also sponge cloths and other waste rags which are used for the
purposes above mentioned and to which my invention is equally applicable.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
First. The combination of a steaming or boiling vessel with a condenser and a
recipient vessel for the purposes set forth and substantially as herein before
described and illustrated by the annexed drawing.
Secondly. The method of driving off the turpentine or volatile oils from the
waste above named in the form of vapour, then condensing the latter and separating
the resulting turpentine or other volatile oils from the condensed water, sub-
stantially in the manner herein before set forth.
GEORGE DAVIES,
Agent for the Applicant..