IMPROVEMENTS IN ROLLING BAGS AND OTHER PAPER-MAKING MATERIALS
Year: 1863

page_text: LETTERS PATENT to William Jackson Rideout, of Farnworth Mills,
Bolton, Paper Manufacturer, for the Invention of "IMPROVEMENTS IN
ROLLING BAGS AND OTHER PAPER-MAKING MATERIALS."
Sealed the 22nd March 1864, and dated the 14th October 1863.
PROVISIONAL SPECIFICATION left by the said William Jackson Rideout
at the Office of the Commissioners of Patents, with his Petition, on
the 14th October 1863.
I, WILLIAM JACKSON RIDEOUT, of Farnworth Mills, Bolton, Lancashire,
Paper Manufacturer, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN BOILING RAGS AND OTHER PAPER-MAKING MATERIALS," to
be as follows:-
This Invention has for its object improvements in boiling rags and other
paper-making materials. Heretofore when boiling rags and other paper-
making materials. in solutions of alkalies and alkaline earths, it has been usual
to use free steam, which in condensing has weakened the solutions employed.
Now my improvements consist in boiling rags and other paper-making
materials when using solutions of alkalies or alkaline earths by means of steam,
whether superheated or ordinary steam, separate from the solutions employed,
and this I do either by a rotating or a fixed boiler surrounded or inclosed in a
steam jacket similar to what has before been used for other heating and
boiling processes. By this means the desired strength of solution will be
insured during the boiling of rags and other paper-making materials.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Jackson Rideout in the Great Seal Patent Office on
the 13th April 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
JACKSON RIDEOUT, of Farnworth Mills, Bolton, Lancashire, -Paper Manufac-
turer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of October, in the year of our
Lord One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Jackson Rideout, Her special licence that I, the said William
Jackson Rideout, my executors, administrators, and assigns, or such others as I,
the said William Jackson Rideout, 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 BOILING RAGS AND OTHER PAPER-MAKING MATERIALS,"
upon the condition (amongst others) that I, the said William Jackson
Rideout, my executors or administrators, 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 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 Jackson Rideout, 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 thereof, that is to say :-
This Invention has for its object improvements in boiling rags and other
paper-making materials. Heretofore when boiling rags and other paper-
making materials in solutions of alkalies and alkaline earths it has been
usual, to use free steam, which in condensing has weakened the solutions.
employed.
Now my improvements consist in boiling rags and other paper-making
materials when using solutions of alkalies or alkaline earths by means of
steam, whether superheated or ordinary steam, separate from the solutions
employed, and this I do either by a rotating or a fixed boiler surrounded or

page_text: enclosed in a steam jacket similar to what has before been used for other
heating and boiling processes. By this means the desired strength of
solution will be insured during the boiling of rags and other paper-making
materials.
And in order that my said Invention may be the more readily carried into
effect I will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a longitudinal section; and Figure 2 is an end view of the
apparatus which I prefer to employ.
It consists of a cylinder a made of sheet iron and closed at the ends, in the
centre of the ends the trunnions or axes b, b, are fixed, and these are received
into suitable bearings in the standards c, c. Around the cylinder a is an outer
casing or jacket d, and the space between the cylinder and the jacket is
supplied with steam through one of the trunnions or hollow axes b with which
it is connected by the pipes e, e. At the other end of the apparatus there are
other similar pipes e, e, and the trunnion is similarly arranged; the pipe leading
therefrom may conduct the steam which has been through the apparatus to
any place where it may be required, or the pipe may be furnished with a blow-
through cock, which is opened only at starting the apparatus; f,f, are covers
for closing the manholes or passages by which the paper-making materials
and ley are introduced into the apparatus, and by which the material is
removed when the boiling is complete; g is a cock for drawing off the ley at
the end of the operation, it is covered by the strainer h, which keeps back the
rags or other materials; i is a worm wheel fixed on one end of the trunnions b,
and & is a worm gearing therewith, it is driven by means of a strap passing
around a pulley on its axis, in this manner the cylinder a is caused to rotate
continually but slowly during the boiling; for a cylinder seven feet in diameter
which is a convenient size one rotation in two minutes will be sufficient; lis
a perforated shelf fixed radially within the cylinder a, it serves as the apparatus
revolves to lift the rags or materials, and after raising them it lets them fall
back into the ley; m and n are cocks for allowing, whilst the apparatus is at
work, the regular escape of air and water resulting from condensation; each
of these cocks, as is shown, has a star wheel on the end of its plug, and by
tappets it is opened for an instant, and then again closed once in each revolu-
tion, the water cock n is opened when in its lowest position, and the air cock
m when in its highest. The strength of ley employed is varied according to
the nature of the materials, as when boiling in the ordinary manner. The
steam for heating may be either ordinary steam or superheated, usually,

page_text: however, I employ ordinary steam. There are some paper-making materials
which are too tender to bear the rotation of the apparatus during the boiling,
such for example as esparto and straw, for such materials I. employ a similar
apparatus, either kept stationary during the process or not made so as to be
able to rotate.
In witness whereof, I, the said William Jackson Rideout, have hereunto
set my hand and seal, this Thirteenth day of April, in the year of our
Lord One thousand eight hundred and sixty-four.
W. J. RIDEOUT. (L.S.)