IMPROVEMENTS IN THE MODE OF AND APPARATUS FOR TREATING USED OR WASTE VULCANIZED OR OTHER CAOUTCHOUC, AND IN THE APPLICATION OF THE RESULTING PRODUCT TO INDUSTRIAL PURPOSES."
Year: 1879

page_text: LETTERS PATENT to Edwin Ambrose Brydges, of the Firm of Brydges. & Co..
Patent Agents, of 32. Belle Alliance Strasse, Berlin, in the Empire of Ger-
many, for the Invention of IMPROVEMENTS IN THE MODE OF AND APPARATUS FOR
TREATING USED OR WASTE VULCANIZED OR OTHER CAOUTCHOUC, AND IN THE
APPLICATION OF THE RESULTING PRODUCT TO INDUSTRIAL PURPOSES." A
communication by Ludwig Heyer, of Berlin, in the Empire of Germany.
aled the 12th March 1880, and dated the 26th September 15
PROVISIONAL SPECIFICATION left by the said Edwin Ambrose Brydges af
the Office of the Commissioners of Patents on the 26th September 1879.
EDWIN AMBROSE BRYDGES, of the Firm of Brydges, & Co., Patent Agents, of
82, Belle Alliance Strasse, Berlin, in the Empire of Germany. "TMPROVEMENTS
IN THE MODE OF AND APPARATUS FOR TREATING USED OR WASTE VULCANIZED OR
OTHER CAOUTCHOUC, AND IN THE APPLICATION OF THE RESULTING PRODUCT TO
INDUSTRIAL PURPOSES." [A communication by Ludwig Heyer, of Berlin, in the
Empire of Germany.]
This Invention relates to the treating of used or waste vulcanized or other
cauotchouc or india rubber so as to render the same fit for use in various ways,
and in the application of the so regenerated material or substance to industrial
purposes.
To this end the waste caoutchouc or rubber is placed in a vessel, boiler, or other
suitable receptacle, which is divided, preferably, into three compartments by
wire sieves or their equivalents.
The lower compartment contains boiling or warm water or other suitable
fluid, the vapour from which will act on the vulcanized caoutchouc or other
similar material which is placed in the central compartment, so as to prevent
the coke or other material or gas or other firing to be contained in the upper
compartment from burning or otherwise injuring the caoutchoue or other
material contained in the compartment below,
The heat of the fire will melt the outchoue, which will percolate through the
sieve and drop into the water contained in the lower compartment, while the
sulphur and other extraneous substances or mailer or matters will be removed

page_text: or destroyed by the coke or other fire; any solid substances which cannot be
destroyed remaining in the central compartment.
The caoutchouc or other material so obtained is boiled or subjected to the
action of water and steam combined, or water or steam alone, or other suitable
fluid until it is sufficiently fluid or so melted that the same can be let off or
poured through a sieve or other equivalent, so that any extraneous matter or
inatters, substance or substances which may have remained in the caoutchouc
may be removed.
By this mode of treatment pure caoutchoue or other material is obtained,
which will weigh on the average about two thirds of the entire amount of the
material treated; the resulting material being of a dark color, possessing some-
what less elasticity and consistency than natural or original caoutchouc or other
similar material.
In applying the resulting material to useful purposes it is first mixed with
siceative and oil of turpentine or other similar ingredients in suitable proportions,
according to the thickness or consistency required.
The substance thus obtained may be used or applied for waterproofing all
classes of material or substances, such as canvas, cloth, paper, leather; for
waterproofing carriage covers. farpaulin, tents, waterproof coats, leggins, pack-
ing paper or canvas, waterproofing paper for walls, for painting articles exposed
to climatic influences, for painting houses, iron, wood, and other materials, and
as paint or varnish generally: also as an insulating material, and in various
other branches of industry.
Any desired color can be given to the subsíance by adding, suitable pigments
thereto.
Articles coated or saturated with this subsiance will possess greater flexibility
than when coated with original or vulcanized caoutchouc or other similar matter.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edwin Ambrose Brydges in the Great Seal Patent Office on the
33rd March 1880.
EDWIN AMBROSE BRYDGES, of the Firm of Brydges, & Co. Patent Agenis, of
82, Belle Alliance Strasse, Berlin, in the Empire of Germany. IMPROVEMENTS
IN THE MODE OF AND APPARATUS FOR TREATING USED OR WASTE VULCANIZED OR
OTHER CAOUTCHOUC, AND IN THE APPLICATION OF THE RESULTING PRODUCT TO
INDUSTRIAL PURPOSES." A communication from Ludwig Heyer, of Berlin,
in the Empire of Germany.
This Invention relates to the treatment of used or waste vulcanized or other
caoutchouc or india rubber so as to render the same lit for use in various ways,
and in the application of the so renewed material or substance to industrial
purposes.
In carrying out the process for utilizing waste india rubber an apparatus is
employed consisting of a boiler or other suitable receptacle of required form.
which is divided into, say, three compartments by horizontal wire sieves or their
equivalents.
The middle compartment is intended to receive the waste rubber to be treated.
The lowermost compartment will contain hot water for supplying vapor to the
waste rubber to protect it from the injurious action of a coke or other fire which
is contained in the top compartment. By this arrangement the waste rubber
will be melted by the adjacent fire without risk of burning, and the sulphur and
other volatilisable ingredients will be destroyed by the fire.
The caoutchouc as it melts drops into the lowest compartment, and the heavy
spar (sulphate of baryta) or other indestructible components of the elastic com-
pound remain on the sieve or its equivalent in the central compartment.
The caouchoue thus recovered is boiled or subjected to the action of water and
steam combined, or water or steam alone, or other suitable fluid. until the said
caoutchoue is sufficiently fluid to pour through a sieve, and leave thereon any
extraneons matters which it contained.
By the above described process pure caoutchouc is obtained which weighs on
the average two thirds of the entire amount of waste caoutchouc treated.
Waste and used vulcanized and other caoutchouc is so to be had in large
quantities at very low prices, as the same could not hitherto be used or applied
commercially.
The above described process of regenerating caoutchouc is very simple, and
can consequently be carried out with little expense.
The recovered elastic material which will be termed the Heyer" caoutchouc
can easily be detected from natural or vulcanized caoutchouc, as the same is of a
lark color, and possesses somewhat less elasticity and consistency than the natural
or original caoutchoue.
This said Invention relates further to the method of applying the said
recovered caoutchouc to various uses in the arts.
It is for this purpose mixed with "siccative" and oil of turpentine or other
similar materials. until the mass or substance is of the desired toughness or
consistency.
This mixture of caoutchouc, turpentine, oil, and siccative or their equivalents.
an be used or applied for waterproofing all classes of material or substances, such
s canvas, cloth. paper, and leather, for waterproofing carriage covers, tarpaulins.
ents, waterproof coats, leggins, packing-paper, or canvas, waterproof papers
or walls, for painting articles exposed to climatic influences, for painting houses.
on, wood, and other materials, as paint or varnish generally; also as an in-

page_text: sulating material. Any desired color can be given to the "Heyer” caoutchoue
by adding suitable pigments thereto.
Heyercaoutchoue possess greater
flexibility than such similar articles or materials when coated with original or
vulcanized caoutchouc.
Articles coated or saturated with the
"
Improvements in
Having now set forth the nature of the said Invention for
the Mode of an Apparatus for Treating Used or Waste Vulcanized or other
Caoutchouc, and in the Application of the Resulting Product to Industrial
"Purposes,” which has been communicated-to-me as aforesaid, and explained the
manner of carrying the same into effect. I wish it to be understood that under
the above in part recited Letters Patent, claim,
The process of and apparatus for treating used or waste caoutchouc (india
rubber), and the application of the recovered caoutchouc for waterproofing
purposes as paint or varnish, and for other purposes, substantially as herein
described
In witness whereof, 1, the said Edwin Ambrose Brydges, have hereunto sel
my hand and seal, the 20th day of March, in the year of our Lord One
thousand eight hundred and eighty,
EDWIN A. BRYDGJS. (L.S.)