An Improved Process for the Recovery of the Cloth from Damaged Waterproofed Fabrics.
Year: 1892

page_text: Date of Application, 28th June, 1892
Complete Specification Left, 24th Mar., 1893-Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
An Improved Process for the Recovery of the Cloth from Damaged
Waterproofed Fabrics.
We, THOMAS JAMES HUTCHINSON, of Aden House, Manchester Road, Bury,
in the County of Lancaster, Techinal Chemist, and RICHARD BAMFORD
HARDMAN, of the firm of Thomas Hardman & Sons, of Bury, in the County of
Lancaster, Manufacturers, do hereby declare the nature of this invention to be
as follows:-
The indiarubber or indiarubber compound of waterproofed textile fabrics
frequently becomes damaged deteriorated or decomposed, and the fabrics con-
sequently become useless for the purpose for which they were intended. When
they are in such a condition the whole of the fabrics are usually destroyed and the
cloth is consequently lost. In the case of silk and woollen goods the loss is a very
serious one, and in the case of cotton or other cheap fabrics it is also sufficiently
serious to make the recovery of the fabric by an inexpensive process highly
desirable.
It is the object of this invention to enable the cloths to be recovered by an
economical process and a result of the process is that the fabrics are generally more
suitable for subsequent re-proofing than they were in their original condition for
the first proofing.
In proceeding according to our invention, we treat the fabrics in a bath of warm
or heated oil or fatty matters until the proofing is decomposed or partly or wholly
dissolved. After this treatment, the excess of the oil or fatty matter is expressed
by suitable rollers, and the cloth is then treated with a suitable volatile solvent for
the removal of the oily or fatty matters and the products from the proofing, or
in some cases, these matters may be removed by a scouring process.
We prefer
to employ however the method, and means for removing the matters described in
the Specification of Letters Patent granted to Thomas James Hutchinson, one of
the present applicants, No. 10,285 dated the 3rd day of July A.D. 1890.
The warm or heated condition of the oil or fatty matter in the preliminary
treatment is not essential, as, if sufficient time be given, the process will be equally
effective in the cold. It is to save this waste of time that we employ heat but
the degree of heat used should be insufficient to " tender" or deteriorate the
goods. With this reservation, we do not limit ourselves to any temperature.
Dated this 27th day of June A.D. 1892
WILLIAM E. HEYS,
Agent for the. Applicants.
COMPLETE SPECIFICATION.
An Improved Process for the Recovery of the Cloth from Damaged
Waterproofed Fabrics.
We, THOMAS JAMES HUTCHINSON of Aden House, Manchester Road, Bury,
in the County of Lancaster, Analytical and Consulting Chemist, and RICHARD
BAMFORD HARDMAN of the firm of Thomas Hardman & Sons, of Bury in the
County of Lancaster, Manufacturer, do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The indiarubber or indiarubber compound of waterproofed textile fabrics
frequently becomes damaged deteriorated or decomposed, and the fabrics con-
sequently become useless for the purposes for which they were intended. When
n

page_text: they are in such a condition the whole of the fabrics are usually destroyed and the
cloth is consequently lost. In the case of silk and woollen goods this loss is a very
serious one, and in the case of cottons and other cheap fabrics it is also sufficiently
serious to make the recovery of the fabric by an inexpensive process highly
desirable.
It is the object of this invention to enable the cloths to be recovered by an
economical process, and a result of this process is that the fabrics are generally
more suitable for subsequent re-proofing than they were in their original condition
for the first proofing.
In proceeding according to our invention we treat the fabrics in a bath of warm
or heated oil or fatty matters until the proofing is decomposed or partly or
wholly dissolved. After this treatment, the excess of the oil or fatty matter is
expressed by suitable rollers, and the cloth is then treated with a suitable
volatile solvent for the removal of the oily or fatty matters and the products
from the proofing, or in some cases, these matters may be removed by a scouring
process. We prefer to employ however the method and means for removing the
matters, described in the Specification of Letters Patent granted to Thomas
James Hutchinson one of the present applicants, No. 10285 dated the 3rd day of
July A.D. 1890.
The warm or heated condition of the oil or fatty matter in the preliminary
treatment, is not essential, as, if sufficient time be given, the process will be equally
effective in the cold. It is to save this waste of time that we employ heat, but
the degree of heat used should be insufficient to "tender" or deteriorate the goods.
With this reservation, we do not limit ourselves to any temperature.
Suitable oily or fatty matters for use in the first part of the process are the
vegetable oils such as olive, rape, and cotton seed, and a suitable solvent for the
second part is solvent naphtha derived from coal tar from shale or from
petroleum, but we desire it to be understood that we do not limit ourselves to
these.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is―
The hereinbefore described process for the recovery of the cloth from damaged
waterproofed fabrics, substantially as set forth.
Dated this 23rd day of March AD 1802
WILLIAM E. HEYS,
Agent for the Applicants.