Improvements in Solutions for Waterproofing and Airproofing Woven and other Fabrics, in Applying the same, and in Apparatus therefor.
Year: 1892

page_text: Date of Application, 22nd Oct., 1892
Complete Specification Left, 15th July, 1393-Accepted, 2nd Sept., 1993
PROVISIONAL SPECIFICATION.
Improvements in Solutions for Waterproofing and Airproofing
Woven and other Fabrics, in Applying the same, and in
Apparatus therefor.
:
I FRIEDRICH ECKSTEIN of Vienna, Austria, at present of Kennet Wharf in the
City of London, Chemist do hereby declare the nature of this invention to be as
follows:-
+
Fabrics as at present rendered impervious to the passing of water, air, and other
fluids are unsatisfactory for many reasons, amongst which are, (1) they are more or
less readily perishable when acted on by moisture and heat; (2) they have a
disagreeable odour; and (3) they are costly.
Now the object of my invention is to provide a new composition of matter in
solution which solution is easily and cheaply made, and is readily applied in many
ways, but particularly as hereinafter set forth.
"
The agents used, are soluble gun cotton; turpentine or equivalent alone, or
having dissolved therein one or more solid resins and ether-alcohol, with or without.
the addition of sulphur or castor oil or other suitable non-drying oil.
The above agents are mixed together so that a solution is obtained capable of
forming a solidifying mass after the ether-alcohol is allowed to evaporate.
To waterproof fabrics with the above solution, the said fabrics are moistened with
dilute alcohol or spirit or with water, and are brought into contact with the required
quantity of the solution above mentioned, surplus solution being removed from the
fabric, which is afterwards dried and the ether-alcohol drawn off and recovered for
re-use.
וי
Apparatus for use in waterproofing fabrics under my invention consists essentially
of (a) devices for wetting or spraying said fabrics with the dilute alcohol or spirit
or water, (b) a bath and rollers or equivalent appliances for coating the fabrics
with the hereinbefore described solution. (c) scrapers or other suitable apparatus
for removing surplus solution from the coated fabric, and, (d), a drying chamber
through which the coated fabric is passed whilst the ether-alcohol is evaporated
and drawn off by pumps or otherwise to condensers or liquefiers. When the coated
fabric is not passed direct to the drying chamber, such fabric is rolled up under
water so as to prevent sticking.
1
1000
Per pro J. T. KING,
*J. Johnson,
Agent.
1
COMPLETE SPECIFICATION.
Improvements in Solutions for Waterproofing and Airproofing
Woven and other Fabrics, in Applying the same, and in
Apparatus therefor.
.
I FRIEDRICH ECKSTEIN of Vienna, Austria, at present of Kennet Wharf in the
City of London, Chemist, 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 :-
Fabrics as at present rendered impervious to the passing of water, air and other

page_text: fluids, are unsatisfactory for many reasons, amongst which are (1) they are more
or less readily perishable when acted on by moisture and heat; (2) they have a
disagreeable odour; and (3) they are costly.
Now the object of my invention is to provide a new composition of matter in
solution, which solution is easily and cheaply made, and is readily applied in many
ways, but particularly as herein set forth.
The agents used are soluble guncotton, turpentine, or equivalent alone, or
having dissolved therein one or more solid resins and ether alcohol, with or without
the addition of sulphur or castor-oil, or other suitable drying or non-drying oil.
The above agents are mixed together so that a solution is obtained capable of
forming a solidifying mass after the ether-alcohol is allowed to evaporate.
To waterproof fabrics with the above solution, the said fabrics are moistened with
dilute alcohol or spirit, or with water, and are brought into contact with the
required quantity of the solution above mentioned,-surplus solution being removed
from the fabric, which is afterwards dried and the ether alcohol drawn off and
recovered for re-use.
Where the solution is to be rendered capable of withstanding in some cases high
temperatures say up to 400° Fahrenheit, I add linseed oil boiled to a jelly-like
consistency and dissolved in spirit of turpentine or other solvent readily soluble in
ether alcohol.
:-
The following proportions of ingredients by weight are found to answer well :-
(a) Soluble gun-cotton 8, turpentine 5, ether alcohol 100.
(b) Soluble gun-cotton 8, turpentine 6, resins 3, ether-alcohol 140.
(c) Soluble gun-cotton 24, turpentine 18, ether alcohol 300, sulphur 1.
(d) Soluble gun-cotton 8, turpentine 8, ether alcohol 100, castor oil 16.
(e) Soluble gun cotton 8, turpentine 8, ether alcohol 100, linseed-oil-jelly 10.
(f) Soluble gun cotton 24, turpentine 18, resin 10, ether-alcohol 300, sulphur 1,
castor oil 36 or linseed oil jelly 30.
Apparatus for use in waterproofing fabrics under my invention consists essentially
of (a) devices for wetting or spraying said fabrics with the dilute alcohol or spirit,
or water; (b) a bath and rollers or equivalent appliances for coating the fabrics
with the hereinbefore described solution; (c) scrapers or other suitable apparatus
for removing surplus solution from the coated fabric; and (d) a drying chamber
through which the coated fabric is passed whilst the ether alcohol is evaporated
and drawn off, if desired, by pumps or otherwise to condensers or liquefiers.
When the coated fabric is not passed direct to the drying chamber, such fabric is
rolled up under water so as to prevent sticking.
In order that the method of carrying out my invention may be readily understood,
I have appended an outline elevation of apparatus suitable for use in waterproofing
and air proofing fabrics with my improved solution. a represents a roller on which
is wound the fabric to be coated. 6 represents the fabric. c is a trough containing
water, spirit, or alcohol for wetting the fabric on the side to be coated. d is a
closed bath containing the waterproofing or air proofing solution.
e is a roller
around which the fabric to be coated passes so as to dip into the solution. is a
scraper for removing surplus solution. g, is a float hinged to the side of the bath d
ath, and connected by the rod i to one end of the lever j pivotted at k. I rod
connecting the other end of the lever j to the arm m of the cock n. o supply pipe
for the coating solution. By varying the rod to the arm m, the height of the
solution in the bath may be readily adjusted, and by having the cock outside the
bath it is not liable to become fast or choked by evaporation of the solution. p is
a drying chamber containing heated cylinders q, and an endless apron r carried
by rollers s. The coated fabric passes between the cylinders 9 and apron r, and
over rollers t to the winding beam u.. The cylinders q are heated by steam, hot air
or vapour passing therethrough in the usual way; vindicates the pipes for conveying
the heating steam or gases through the cylinders. These various parts are
constructed in any usual way and are driven by any ordinary gearing.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. Solutions for waterproofing and airproofing substantially as set forth.
Second. Waterproofing and airproofing fabrics by moistening them and after-
wards coating them with a solution herein set forth.
Third. Apparatus for waterproofing and airproofing fabrics substantially as
herein set forth.
Per pro J. T. KING,
J. Johnson,
Agent.