AN IMPROVED METHOD OF RE-FORMING AND RE-USING OLD OR WASTE VULCANIZED INDIA-RUBBER
Year: 1863

page_text: LETTERS PATENT to Alfred Ford, of Stewart's Buildings, Battersea Fields,
in the Coy of Surrey, Gentleman, and Richard Rigg, of No. 3, Great
Winchester Street, in the City of London, Gentleman, for the Invention
of "AN IMPROVED METHOD OF RE-FORMING AND RE-USING OLD OR WASTE
VULCANIZED INDIA-RUBBER."
Sealed the 16th October 1863, and dated the 21st April 1863.
PROVISIONAL SPECIFICATION left by the said Alfred Ford and Richard
Rigg at the Office of the Commissioners of Patents, with their Petition,
on the 21st April 1863.
We, ALFRED FORD, of Stewart's Buildings, Battersea Fields, in the Coy
of Surrey, Gentleman, and RICHARD RIGG, of No. 3, Great Winchester Street,
in the City of London, Gentleman, do hereby declare the nature of the said
Invention for "AN IMPROVED METHOD OP RE-FORMING AND RE-USING OLD. OB
WASTE VULCANIZED INDIA-RUBBER," to be as follows:-
We take pieces of vulcanized india-rubber, and having boiled them in a
strong alkaline solution, or otherwise treated them as we shall find most
desirable, grind them by passing them through crushing or grinding rollers,
or subjecting them to some other suitable mechanical action, so as to reduce
them to powder. We then place the powder so obtained in moulds, and
subject it to the action of hydraulic or other suitable pressure, so as to give to

page_text: the mass the necessary amount of solidity. We then submit the same to the
action of steam pressure as employed in ordinary vulcanizing, so as to
agglutinate and conform the whole.
This Invention has for its object the re-moulding and re-vulcanizing and
applying to various purposes old or waste vulcanized india-rubber, without
the admixture with any of the new or unvulcanized india-rubber.
The novelty of this Invention consists, first, in preparing vulcanized india-
rubber in a state of fine division into moulds; 2ndly, in re-moulding and
re-vulcanizing old or waste vulcanized india-rubber without the aid or
admixture of any of the new or unvulcanized india-rubber.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Ford and Richard Rigg in the Great Seal Patent
Office on the 20th October 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ALFRED
FORD, of Stewart's Buildings, Battersea Fields, in the Coy of Surrey,
Gentleman, and RICHARD RIGG, of No. 3, Great Winchester Street, in the
City of London, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of April, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Alfred Ford and Richard Rigg, Her special licence that we, the said
Alfred Ford and Richard Rigg, our executors, administrators, and assigns,
or such others as we, the said Alfred Ford and Richard Rigg, our 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 METHOD OF RE-FORMING AND
RE-USING WASTE VULCANIZED INDIA-RUBBER," upon the condition (amongst
others) that we, the said Alfred Ford and Richard Rigg, our executors or
administrators, by an instrument in writing under our, or their, or one of their
hands and seals, 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 Patent..

page_text: NOW KNOW YE, that we, the said Alfred Ford and Richard Rigg,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
We tako pieces of vulcanized india-rubber, and having boiled them in a
strong alkaline solution, or otherwise treated them so as to cleanse them from
dirt or foreign matter, subject them to the action of grinding or crushing
rollers, so as to reduce them to powder. We then place the powder so
obtained in suitable moulds, either alone or in conjunction with other bruised
or powdered substances, such as sulphur, zinc, black lead, or other pigments,
powders, or earths, and press them by means of hydraulic or other suitable
pressure, so as to give to the mass the necessary amount of solidity. We then
submit the same to the action of steam pressure, as employed in ordinary
vulcanizing, so as to agglutinate and conform the whole.
This Invention has for its object the re-moulding and re-vulcanizing and
applying to various useful purposes old or waste vulcanized india-rubber
without the necessary admixture of any of the new or unvulcanized india-
rubber.
We do no not claim as new the washing of vulcanized india-rubber in
an alkaline solution, or the subsequent reduction of it to powder, or the
machinery by which such reduction is accomplished; but what we do claim as
new is, first, the pressing of vulcanized india-rubber when in a state of fine
division, and without any previous annealing or amalgamating into moulds
for the purpose of its being subsequently submitted to the action of heat;
secondly, the re-moulding and re-vulcanizing old or waste vulcanized india-
rubber without the aid or necessary admixture of any of the new or un-
vulcanized india-rubber.
In witness whereof, we have hereunto set our hands and seals, this
Twentieth day of October, Anno Domini Eighteen hundred and sixty-
Signed ALFRED FORD,
on behalf of self and
RICHARD RIGG. (L.S.)