AN IMPROVED MODE OF TREATING WASTE VUL. CANIZED INDIA-RUBBER
Year: 1860

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
GG, Chancery Lane. in the County of Middlesex, Mechanical Draughts-
man, for the Invention of "AN IMPROVED MODE OF TREATING WASTE VUL.
CANIZED INDIA-RUBBER."-A communication from abroad by John Haven
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton,
at the Office of the Commissioners of Patents, with his Petition, on
the 13th August 1860.
1, ALFRED VINCENT NEWTON, of the Office of Patents, 66, Chancery Lane,
in the County of Middlesex, Mechanical Draughtsman, do hereby declare
the nature of the said Invention for "AN IMPROVED MODE OF TREATING
WASTE VULCANIZED INDIA-RUBBER," to be as follows:--
This Invention relates to the treatment of waste vulcanized india-rubber, for
the purpose of rendering it available as a plastic compound for reconversion
into elastic or waterproof articles. To this end the waste rubber is first ground
into a coarse powder, and in this state it is steeped in or mixed with vegetable
tar or with the tarry or pitchy products derived from the distillation of resin
when producing resin oil. The product preferred to be employed for reducing
the ground rubber to a plastic state, is that known as pine oil. The rubber

page_text: having been allowed time to dissolve or soften there is to be added thereto by
kneading new vulcanizable rubber compound. The curing of this compound
after being moulded or otherwise manufactured into goods is effected in the ordi-
nary manner, but by preference under pressure, whereby great elasticity will
be secured.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Vincent Newton in the Great Seal Patent Office on
the 18th February 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
VINCENT NEWTON, of the Oflice for Patents, 66, Chancery Lane, in the County of
Middlesex Mechanical Dringlitsman send-greeting-
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent. bearing date the Thirteenth day of August, in the year of our Lord
One thousand eight. hundred and sixty, in the twenty-fourth year, of Her
reign, did, for Herself. Her heirs and successors, give and grant unto me,
the said Alfred Vincent Newton. Her special license that 1, the said Alfred
Vincent Newton, my executors, administrators, and assigns. or such others
as I, the said Alfred Vincent. Newton, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time, and at
all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands. and Isle of Man, an Invention
for "AN IMPROVED MODE OF TREATING WASTE VULCANIZED INDIA-RUBBER," being a
communication from abroad upon the condition (amongst others) that I, the
said Alfred Vincent Newton. by an instrument in writing under my hand
and seal, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Paient.
NOW KNOW YE, that I, the said Alfred Vincent Newton, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement (that is to say):--
This Invention as communicated to me by any foreign correspondent relates
to the treatment of waste vulcanized or cured elastic india-rubber for the
purpose of rendering it available as a compound for reconversion into clastic

page_text: or waterproof articles. To this end the waste rubber whether consisting of
scraps produced in rubber factories of worn out overshoes, or other like articles
is first ground into a coarse powder. In this reduced state it is steeped in, or
mixed with vegetable tar, or with the tarry or pitchy products derived from
the distillation of resin when producing resin oil. The product preferred to
be employed for mixing with the ground rubber is that known in the United
States of America as pine, oil. The rubber having been allowed to remain
mixed with the iar or pine oil, for from about four to five days. the super-
fluous tar or oil is run or strained off and there is then to be added to the now
softened rubber, by kneading new or green vulcanized rubber, in any desired
proportion, to suit the quality, as respects tenacity of the compound desired to
be produced. When these substances have been thoroughly amalgamated, and
the compound has been moulded, or otherwise manufactured into goods,
the goods produced therefrom are to be cured. This process may be carried
on in the ordinary manner, but it is preferred to submit the goods to the
curing heat while under pressure, whereby great elasticity will be secured.
Having now set forth the nature of the Invention of an improved mode of
treating waste vulcanized india-rubber, 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 above described, for rendering
waste vulcanized india-rubber available for reconversion into clastic or water-
proof articles.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto
set my hand and seal, the Twelfth day of February in the year of
our Lord One thousand eight hundred and sixty-one.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
A. NEWTON (I.S.)