IMPROVEMENTS IN RENDERING
Year: 1852

page_text: LETTERS PATENT to Frederick Ayckbourn, of 99, Guildford Street,
Russell Square, in the County of Middlesex, Patent Folding Boat
Manufacturer; for the Invention of IMPROVEMENTS IN RENDERING
Sealed the 21st June 1858, and dated the 22nd December 1852.
PROVISIONAL SPECIFICATION left by the said Frederick Ayckbourn
at the Office of the Commissioners of Patents, with his Petition,
the 22nd December 1852.
FREDERICK AYCKBOURN, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN RENDERING CERTAIN MATERIALS IMPER-
VIOUS BY AIR OR WATER;" to be as follows:-
My Invention consists in the production of an air-proof and water-
proof quality in various woven and other articles (leather for instance),
by the following process.
I take a sheet of gutta percha, varying in thickness with the purpose
to which it is to be applied, and roll it on a cylinder.
I then take a sheet or piece of cloth, linen, cotton, or leather, coated
with india-rubber solution, chouca, marine glue, or other cement, on
one side only, and roll it on another cylinder of the same diameter
as the first.

page_text: The two cylinders are then pressed in contact; and being set in
motion, the cloth will take up the gutta percha and form an article air-
proof and water-proof, which as soon as dry will be ready for use. This
process may be repeated so as to increase the number of layers of gutta
percha on the one side, or to place the gutta perclia on both sides of the
same piece of cloth.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Ayckbourn in the Great Seal Patent
Office on the 21st June 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
FREDERICK AYCKBOURN, of 99, Guildford Street, Russell Square, in the
County of Middlesex, Patent Folding Boat Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of December in
the year of our Lord One thousand eight hundred and fifty-two, in
the sixteenth year of Her reign, did, for Herself, Iler heirs and successors,
give and grant unto me, the said Frederick Ayckbourn, Her special
licence that J, the said Frederick Ayckbourn, my executors, administra-
tors, and assigns, or such others as I, the said Frederick Ayckbourn, 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 "IMPROVEMENTS IN
RENDERING CERTAIN MATERIALS IMPERVIOUS BY AIR OR WATER," upon the
condition (amongst others) that I, the said Frederick Ayckbourn, 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
iminediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Frederick Ayckbourn, do hereby
declare the nature of the said Invention, and in what manner the samė

page_text: is to be performed, to be particularly described and ascertained in and
hy the following statement thereof, (that is to say):
My Invention consists in preparing woven, felted, looped, and other
similar fabrics, and also leather, with a solution or preparation of india-
rubber, or with clouca, marine glue, or other suitable cement, and
facing the same with gutta percha, by rolling such woven, felted, looped,
or other fabric, or the leather, when so prepared, on a cylinder, and by
also rolling the gutta percha, in the form of a thin sheet, on another
cylinder, and unrolling the respective materials from the two cylinders
when the materials are placed in contact, and pressure is exerted to
cause them to adhere.
Having thus set forth the nature of my Invention, I now describe
the mauner in which I think it may be best carried into effect.
I take a piece of woven, felted, or looped cloth, or other fabric, or a
picce of leather, and coat or cover the same by any of the ordinary well
known processes with india-rubber solution, or with chouca, marine
glue, or other cement, in suitable quantity or proportion according to
the nature of the fabric employed, or according to the thickness. of the
gutta percha intended to be applied, and roll such piece of cloth or
other fabric, or of leather, so covered or prepared, on a cylinder of about
three feet in diameter, and this cylinder I prefer to make of cast iron,
fitted with a suitable axis to enable motion to be given to it; I then
take a thin piece or sheet of gutta percha, of suitable length and thick-
ness, and roll it on or around another cylinder, which I prefer to have
similar in size and construction to that on which the sheet of prepared
cloth or other fabric, or leather, has been rolled, but with the prepared
surface outwards; the two cylinders are to be mounted in any suitable
frame, and placed side by side, so that one end of the sheet of gutta
percha may be laid evenly on one end of the picce of prepared cloth
or other fabric, or leather, and pressure exerted so as to cause the piece
of prepared cloth or other fabric, or leather, and the sheet of gutta
ercha, to be pressed against each other, and then, on motion being
given by any suitable means, the piece of gutta percha will progressively
dhere to the prepared surface of the piece of cloth, or other fabric, or

page_text: leather, and the finished article or material will be formed as it passes
from between the cylinders.
It is to be understood that after preparing or covering the cloth with
india-rubber solution, I prefer to drive off by heat a portion of the
volatile spirit employed for making or contained in the solution, and
that I apply the sheet or facing of gutta percha so soon as may be
afterwards, and while the surface of the prepared cloth is in a slightly
warm and tacky state, care being taken that it is not so tacky or sticky
as to cause the prepared surface to adhere to the back of the cloth or
other fabric, or leather, when rolled on the cylinder.
When I wish to face both sides of a piece of cloth, I first lay it on
one side, as already described, and then prepare the other side and lay
it on that in the same manner.
It is also to be understood that although I have described the sheets
of gutta perchia and pieces of prepared cloth as of the same size, long
.lengths of prepared cloth may be employed with several short lengths
of gutta percha laid together with the edges in contact.
In witness whereof I, the said Frederick Ayckbourn, have hereunto
set my hand and seal, this Twenty-first day of June, in the
year of our Lord One thousand eight hundred and fifty-three.
FREDERICK AYCKBOURN. (L.S.)
Witness,
H. H. BECKETT,
12, John Street, Bedford Row.