IMPROVEMENTS IN MACHINERY USED IN THE MANUFACTURE OF VULCANIZED INDIA-RUBBER THREAD
Year: 1858

page_text: LETTERS PATENT to David Moseley, of Chapel Field Works, Ardwick,
in the City of Manchester, Manufacturer of India-rubber and Gutta
Percha, for the Invention of "IMPROVEMENTS IN MACHINERY USED IN THE
MANUFACTURE OF VULCANIZED INDIA-RUBBER THREAD."
Sealed the 16th November 1858, and dated the 9th June 1858.
PROVISIONAL SPECIFICATION left by the said David Moseley at the
Office of the Commissioners of Patents, with his Petition, on the 9th
June 1858.
I, DAVID MOSELEY, of Chapel Field Works, Ardwick, in the City of Man-
chester, Manufacturer of India-rubber and Gutta Percha, do hereby declar
the nature of the said Invention for "IMPROVEMENTS IN MACHINERY USED IN
THE MANUFACTURE OF VULCANIZED INDIA-RUBBER THREAD," to be as follows:-
In manufacturing vulcanized india-rubber thread, it is customary to lap a
sheet of the vulcanized india-rubber around a roller, the sheet of vulcanized
india-rubber passing through a trough containing a solution of shellac, to
cause the whole to adhere together while being cut. In the usual mode of
operation the surplus shellac is removed by an instrument called a "doctor;"
my Invention consists in dispensing with the "doctor," and in placing a roller
in the trough containing the solution of shellae, also in applying an adjustable
guide to the table over which the sheet of vulcanized india-rubber passes to

page_text: keep the selvages even. When the sheet of vulcanized india-rubber is being
wound on the roller the surplus quantity of shellac is squeezed out by the
pressure between the two rollers.
By means of these improvements a considerable saving in india-rubber and
in shellac is effected, the operation of lapping is performed more expeditiously
and uniformly, and the adhesion between the surfaces is more complete than
heretofore, consequently a more even thread is produced.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said David Moseley in the Great Seal Patent Office on the
9th December 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
MOSELEY, of Chapel Field Works, Ardwick, in the City of Manchester,
Manufacturer of India-rubber and Gutta Percha, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of June, in the year of our Lord One
thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Der heirs and successors, give and grant unto me,
the said David Moseley, Her special licence that I, the said David Moseley,
my executors, administrators, and assigns, or such others as I, the said David
Moseley, my executors, administrators, or 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 MACHINERY USED
IN THE MANUFACTURE OF VULCANIZED INDIA-RUBBER THREAD," upon the condition
(amongst others) that I, the said David Moseley, my executors or adminis-
trators, by an instrument in writing under my, 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 Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said David Moseley, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (that is to say):-
In manufacturing vulcanized india-rubber thread, it is customary to lap a

page_text: sheet of vulcanized india-rubber around a roller, the sheet of vulcanized india-
rubber passing through a trough containing a solution of shellac, which causes
the whole to adhere together while being cut. In the usual mode of operation
the sheet of vulcanized india-rubber passes under a rod or roller placed in the
trough, and the surplus shellac is removed by an instrument called a "doctor;"
my Invention consists in dispensing with the instrument called a "doctor," and
in causing the large roller on which the vulcanized india-rubber is lapped to bear
on the roller in the trough containing the solution of shellac, and around which
the sheet of india-rubber passes before it is lapped on the large roller. When
the sheet of vulcanized india-rubber is being wound on the large roller the
surplus quantity of shellac or other cement is squeezed out by the pressure
between the lap and the roller in the trough.
And in order that my Invention may be fully understood and readily carried
into effect, I will proceed to describe the means pursued by me, reference being
had to the accompanying Sheet of Drawings, and to the figures and letters
marked thereon.
Figure 1 is a sectional elevation, and Figure 2 a plan, of a machine for
lapping sheets of vulcanized india-rubber on to rollers, to which my improve-
ments are applied. a is a table supporting the trough b, containing a solution
of shellac or other cement; at each end of this trough are the bearings for the
roller c, which I prefer to make of wood, but other material may be used; a
similar roller or a rod has before been used to guide the india-rubber through the
solution of shellac or other cement. To the table a arc fixed the standards d, in
which are slots for the ends of the axle of the large roller e, which bears upon the
roller c, and on which the sheet of vulcanized india-rubber is lapped; at one
side of the table a is the adjustable guide f, which is held by screws passing
through slots, as shewn in Figure 2. The mode of operation is as follows:-
the end of the sheet of vulcanized india-rubber is brought over and under the
guide rails y, then over the table a into the trough b, and then under and over
the roller c, and around the roller e, which is turned round by the handle e', or
by a strap and pulley, the attendant keeping one selvage of the sheet close to
or in contact with the guide f, in order to make one end of the lap quite true.
While the sheet of vulcanized india-rubber is being lapped on the roller e,
the surplus shellae or other cement is pressed back by the pressure of the lap
on the roller c, which is thus made to answer the same purpose as the
doctor," or blade of steel hitherto employed for effecting the same object.
By means of these improvements a considerable saving in india-rubber and in
shellac or other cement is effected, the operation of lapping is performed more
expeditiously and uniformly, and the adhesion between the surfaces of the

page_text: sheet of vulcanized india-rubber is more complete than heretofore, consequently
a more even thread is produced when the lap of vulcanized india-rubber has
been cut by the subsequent operation, which is performed in the usual
manner.
The roller e is generally mado of wood, and the surface thereof is liable to
be injured by the cutters employed in cutting the sheet to make it into thread.
I therefore propose to cover these rollers with a coating of vulcanized india-
rubber or gutta percha to protect the wood from injury by the cutters, and to
prevent the roller from warping by the action of the water used in cutting the
india-rubber.
Having thus stated the nature of my Invention, and described the manner
of performing the same, I declare that I claim,-
First, the use and application of the roller c, to support the roller on which
the sheet of vulcanized india-rubber is lapped, and to answer the purpose of
the "doctor" usually employed to remove the surplus shellac or other cement,
as described.
And secondly, covering the roller e on which the sheet of vulcanized india
is lapped with a coating of vulcanized india-rubber or gutta percha, as
described.
In witness whereof, I, the said David Moseley, have hereunto set my
hand and seal, this Seventh day of December, in the year of our Lord
One thousand eight hundred and fifty-eight.
DAVID MOSELEY. (L.S.)