AN IMPROVED DRYER FABRIC FOR PAPER MAKING
Year: 1863

page_text: LETTERS PATENT to William Boaler, of No. 85, Piccadilly, in the City
of Manchester, Merchant, for the Invention of "AN IMPROVED DRYER
FABRIC FOR PAPER MAKING."
Sealed the 15th August 1863, and dated the 9th May 1868.
PROVISIONAL SPECIFICATION left by the said William Boaler at tho
Office of the Commissioners of Patents, with his Petition, on the 9th
May 1863.
I, WILLIAM BOALER, of No. 85, Piccadilly, in the City of Manchester,
Merchant, do hereby declare the nature of the said Invention for "AN
IMPROVED DRYER FABRIC FOR PAPER MAKING," to be as follows:-
This Invention consists in the substitution of a peculiar kind of cloth con-
sisting of many threads and webs all bound together in the weaving and
forming one cloth, either twill, plain, or chain, for the ordinary dryer felt
now in use, for the purpose of expelling and absorbing the moisture from
and modifying the drying of paper while it is passing over the surface of
heated cylinders. This Invention I call Boaler's Patent Manifold Dryer
Fabric.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Boaler in the Great Seal Patent Office on the
5th November 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BOALER, of Number 85, Piccadilly, in the City of Manchester, Merchant,
send greeting.

page_text: WHEREAS IIer most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of May, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-sixth year of Iler
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said William Boaler, Her special license that I, the said William Boaler, my
executors, administrators, and assigns, or such others as I, the said William
Boaler, 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 DRYER
FABRIC FOR PAPER MAKING," upon the condition (amongst others) that I,
the said William Boaler, my exccutors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly 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.
NOW KNOW YE, that I, the said William Boaler, 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, reference being had to the Diagram bereunto annexed, and to the
Figures marked thereon (that is to say :—
This Invention consists in the substitution in paper-making machines of a
peculiarly suitable kind of cloth in place of the ordinary dryer felt beretofore
and now in use for expelling and absorbing the moisture from and modifying
the drying of the paper while it is being passed over heated cylinders, such
substitution causing the machines to be made and worked more economically
and effectively. The peculiar cloth which I employ consists of many threads
and webs all bound together in the weaving, and forming one cloth, either
twill, plain, or chain. By preference I employ cotton, but linen, wool, or any
textile or fibrous material could be used, either wholly or in combination
with cotton.
In manufacturing the cloth which I use for the purpose above described in
paper-making machines of the ordinary construction, I employ the following
means, which will be easily understood by those who are familiar with weaving
machinery with the aid of the accompanying Diagram:-I employ an ordinary
loom of any required width, to which is attached a positive or other taking-up
motion for conveying away the cloth as it is woven. Behind the loom is a

page_text: frame, in which are placed one or more beams for holding the warp. The
loom is so arranged that any number of shafts or healds may be employed as
is requisite for the production of this fabric. The healds can be worked with
either tappet, index, chain, or jacquard machine, as may be thought proper
or most convenient. The cloth is woven in the following manner :-I employ
two or more warps drawn from one or more beams, according to thickness of
cloth required, which may be produced any thickness, either by using thicker
yarn or more warps. The warp threads are drawn through the healds in
such a manner as to produce at every change of the tappet or other equivalent
a shed through which the shuttle passes a thread of weft, and after the
requisite number of changes (which may be varied) have been repeated as
often as required a soft, spongy, porous cloth is produced. In order to guido
the weaver or manufacturer, the accompanying Diagram, usually called a
"tie-up," will at once shew how to manufacture the fabric; in this Diagram
the horizontal lines marked from 1 to 12 indicate the shafts or healds, and the
vertical lines marked from 1 to 24 indicate the warp threads; the crosses
where these lines intersect each other represent the order of succession in
which the shafts or healds are worked. I wish it to be understood that the
above tie-up is only given as an illustration of the manner in which my
Invention may be carried into operation; the number of shafts or healds
employed, and the order in which they are worked may be varied.
Having now described the nature of my said Invention, and in what
manner the same is to be performed, I wish it to be understood that I make
no claim to the apparatus employed in manufacturing the cloth I use; but
what I claim is, its employment as above described in paper-making machines
in substitution of the dryer felt heretofore employed.
In witness whereof, I, the said William Boaler, have hereunto set my
hand and seal, this Fourth day of November, in the year of our Lord
One thousand eight hundred and sixty-three.
Witness,
FRED. A. BINNEY,
40, Cross St., Manchester.
WILLIAM BOALER. (L.S.)