Process and Composition for Waterproofing Textile Materials or Fabrics and Finished Garments.
Year: 1894

page_text: Date of Application, 28th May, 1894
Complete Specification Left, 27th Feb., 1895-Accepted, 30th Mar., 1895
PROVISIONAL SPECIFICATION.
Process and Composition for Waterproofing Textile Materials or
Fabrics and Finished Garments.
We, HERMANN COHRS, Manufacturer, of 22 Zwinglistrasse, and JOHANNES
OESTERREICH, Merchant, of 77 Sebastienstrasse both at Berlin, in the German
Empire, do hereby declare the nature of this invention to be as follows:
The hitherto known methods of impregnating textile fabrics, to render them
waterproof, have been more or less unsatisfactory, as a rule they could only be
applied to fabrics before they were worked up into garments and other finished
articles, and even waterproof overcoats of indiarubber tend to become soft in
heavy rain.
.
The present invention has for its object, the waterproofing of finished garments,
such as trousers, waistcoats, coats, mantles, hats, ladies' jackets, and bonnets, by
a cheap and rapid process, without in the least affecting the colour and softness
of the objects treated, or spreading any unpleasant odour.
For this purpose we employ a mixture composed of
Water, hot
Alum, pulverized
Silicate of soda or of potash
Vaseline, white
5 litres
200 grammes
175
"
-
300
"
This mixture is thoroughly stirred and when still warm, applied to the face or
right side of the garment to be waterproofed, by means of a brush.
Fabrics thus treated are perfectly waterproof, without unnecessarily preventing
the circulation of air, and without spreading any odour.
The fabrics or objects to be impregnated as described are previously spread out
on long plates and suitably heated; subsequently waterproofing mixture is applied
with the brush, and the fabrics or garments are immediately exposed to a dry heat
of about 70° Celsius for about 10 to 15 minutes, after which they are ready
for use.
Dated this 26th day of May 1894.
Process and Composition for Waterproofing Textile Materials or
Fabrics and Finished Garments.
We, HERMANN COHRS, Manufacturer, of 22 Zwinglistrasse, and JOHANNES
OESTERREICH, Merchant, of 77 Sebastianstrasse, both at Berlin, in the German
Empire, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The hitherto known methods of impregnating textile fabrics, to render them

page_text: waterproof, have been more or less unsatisfactory and as a rule, could only be
applied to fabrics before they were worked up into garments and other finished
articles.
The present invention has for its object, the waterproofing of finished garments,
such as trousers, waistcoats, coats, mantles, hats, ladies' jackets, and bonnets, by a
cheap and rapid process, without in the least affecting the colour and softness of
the objects treated, and without spreading any unpleasant odour..
For this purpose we employ a mixture composed of
The present invention has for its object, the waterproofing of finished garments,
such as trousers, waistcoats, coats, mantles, hats, ladies' jackets, and bonnets, by a
cheap and rapid process, without in the least affecting the colour and softness of
the objects treated, and without spreading any unpleasant odour.
For this purpose we employ a mixture composed of
Water, hot
Alum, pulverised
Silicate of soda or of potash
Vaseline, white
5 litres
200 grammes
175
""
3000
دو
This mixture is thoroughly stirred and, when still warm, applied to the face or
right side of the garment to be waterproofed, by means of a brush.
Fabrics thus treated are water repellent, while remaining pervious to air and will
not spread any unpleasant odour.
The fabrics or objects to be impregnated as described are previously spread out
on long plates and suitably heated; subsequently waterproofing mixture is applied
once with the brush, and the fabrics or garments are immediately exposed to a dry
heat of about 70° Celsius for about 10 to 15 minutes, after which they are
ready for use.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. The process for waterproofing textile fabrics including finished garments, which
consists in applying to the face of the heated fabric a mixture of hot water, alum,
alkali-silicate and vaseline, with a brush, and then exposing it to dry heat,
substantially as described.
2. A waterproofing mixture composed of hot water, pulverised alum, alkali-
silicate, and white vaseline, in the proportions substantially as described.
Dated this 27th day of February 1895.
FAIRFAX & WETTER,
433, Strand, London, Agents.