AN IMPROVED MODE OF AND Apparatus FOR RAISING OR ELEVATING CERTAIN KINDS OF PAPER MAKING MATERIALS FROM REVOLVING BOILERS
Year: 1870

page_text: LETTERS PATENT to Thomas Rose and Robert Emerson Gibson, of
Earlestown, in the County of Lancaster, Paper Makers and Seed
Crushers, for the Invention of "AN IMPROVED MODE OF AND Apparatus
FOR RAISING OR ELEVATING CERTAIN KINDS OF PAPER MAKING MATERIALS
FROM REVOLVING BOILERS."
Sealed the 31st December 1870, and dated the 2nd July 1870.
PROVISIONAL SPECIFICATION left by the said Thomas Rose and
Robert Emerson Gibson at the Office of the Commissioners of
Patents, with their Petition, on the 2nd July 1870.
We, THOMAS ROSE and ROBERT EMERSON GIBSON, of Earlestown,
in the County of Lancaster, Paper Makers and Seed Crushers, do hereby
declare the nature of the said Invention for "AN IMPROVED MODE OF AND
APPARATUS FOR RAISING OR ELEVATING CERTAIN KINDS OF PAPER MAKING
MATERIALS FROM REVOLVING BOILERS," to be as follows:-
The object of our Invention is to provide means for raising or elevating
paper making materials of the kind or description herein-after mentioned

page_text: with the liquid in which they have been treated directly from revolving
boilers to a higher position or floor, and thereby avoid the inconvenience
and expense of discharging such materials from doors in the said boilers
and afterwards elevating them. For this purpose we employ, first, the
pressure of the steam remaining in the said boilers after treatment of the
said materials or steam admitted for the purpose; and, second, the
apparatus herein-after described.
The apparatus consists essentially of a pipe or way led from inside
the boiler to the desired height, such pipe or way being fitted with a
stop, tap, or valve. In practice under one modification we lead the pipe,
which is open at its end or sides, inside the boiler, upwards through one of
the trunnions, then away to the required position, the tap or valve being
connected in a convenient position.
After the paper making materials have been sufficiently cooked or
treated in the revolving boiler the aforesaid tap or valve is opened and the
said materials forced upwards the desired height by the pressure of the
steam acting on their surface.
The kind or description of paper making materials to which our
Invention is applicable is that in which the fibres are in comparatively
short lengths or connections. Cotton seed, husk, and fibre, chopped 2
straw, or grass, and finely broken rags are suitable materials.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Rose and Robert Emerson Gibson in the
Great Seal Patent Office on the 2nd January 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wе, THOMAS 2
ROSE and ROBERT EMERSON GIBSON, of Earlestown, in the County of
Lancaster, Paper Makers and Seed Crushers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of July, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-fourth 3
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said Thomas Rose and Robert Emerson Gibson, Her
special license that we, the said Thomas Rose and Robert Emerson
Gibson, our executors, administrators, and assigns, or such others as

page_text: we, the said Thomas Rose and Robert Emerson Gibson, our excoutors,
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 MODE OF AND
APPARATUS POR RAISING OR ELEVATING CERTAIN KINDS OF PAPER MAKING
MATERIALS FROM REVOLVING BOILERS," upon the condition (amongst others)
that we, the said Thomas Rose and Robert Emerson Gibson, our
executors or administrators, by an instrument in writing under our, or
their, or one of our or 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 tho
Great Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Thomas Rose and Robert Emerson
Gibson, 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, reference being had
to the accompanying Sheet of illustrative Drawings, and to the figures
and letters marked thereon, that is to say :-
The object of our Invention is to provide means for raising or elevating
paper making materials of the kind or description herein-after mentioned
with the liquid' in which they have been treated directly from revolving
boilers to a higher position or floor, and thereby avoid the inconvenience
and expense of discharging such materials from doors in the said boilers
and afterwards elevating them. For this purpose we employ, first, the
pressure of the steam remaining in the said boilers after treatment of the
said materials or steam admitted for the purpose; and, second, the
apparatus herein-after described.
The apparatus consists essentially of a pipe or way led from inside the
boiler away to the desired height, such pipe or way being fitted with a
stop, tap, or valve. In practice under one modification. we lead the pipe,.
which is open at its end or sides, inside the boiler, upward through one
of the trunnions, then away to the required position, the tap or valve
being connected in a convenient position.
After the paper making materials have been sufficienty cooked or
treated in the revolving boiler the aforesaid tap or valve is opened and.

page_text: we salu materials forced upwards to the desired height by the pressure
of the steam acting on their surface.
The kind or description of paper making materials to which our
Invention is applicable is that in which the fibres are in comparatively
short lengths or connections. Cotton seed, husk, and fibre, chopped
straw, or grass, and finely broken rags are suitable materials.
The Drawing herewith represents a view in longitudinal section of a
revolving boiler provided with connections and appliances in accordance
with our Invention.
a are the standards or supports with bearing bushes at 6; c, boiler;
d, secured agitating plates; e, steam supply pipe terminating at the
gland ef, steam valve; g, plate preferably perforated with holes of
about 1 in. in diameter for dispersing the entering steam from the steam
generator during the cooking of the stuff, but more particularly for
preventing the stuff from choking the steam entrance ways h, 1; i,
hopper and slide valve through which c is charged; j, discharge pipe
fixed to the boiler c and revolving therewith; k, hollow trunnion with
stuffing gland at t; m, wheel driven by power through the worm n;
o, pipe with valve p forming with the hollow trunnion k and pipe j the
discharge way through which the "cooked stuff" is raised or elevated,
say to convenient stuff chests or vessels at the top of a building; q is a
steam supply pipe for clearing k and j of any paper making materials
which might collect therein, and if desired for supplying steam to c
during the "
cooking." The pipe j may be affixed so as to remain
stationary instead of being affixed to revolve with the boiler, but this we
do not consider so useful in practice as the full advantage of the agitating
plates d cannot be obtained.
In a revolving boiler of the size shewn on the Drawings moved at
about one revolution a minute, 25 hundredweights of cotton sced, husk,
and fibre, chopped straw, or grass, or broken rags, mixed with liquor, the
two filling the boiler to within 18 inches from the top, is a proper charge.
When the connections are of the sizes shewn the length of the pieces
of straw or other material should not exceed 2 inches. It will be
evident the discharge ways and consequently the length of the pieces
of straw or other material may be increased, but it is not desierable to
do so.
The manner in which our said Invention is carried into practice is
very simple. Suppose the revolving boiler is standing empty with the

page_text: valves and p closed and steam shut off from q, and it is desired to
charge it and cook and elevate the paper making materials, we first
admit through i the said paper making materials and liquor usually
mixed from a stuff chest at higher elevation, then close the valve i, open
the valve f, and admit steam therethrough and also through a continuously
or otherwise and cause the boiler to revolve through m by n. When the
paper making materials have been sufficiently cooked we bring the boiler
to rest in the position shewn on the Drawings, that is to say, in such
position that the pipe; faces the lowest part of c. We then shut off
steam by and from 9 and open the valve p. The pressure of steam in c
after cooking the fibre is sufficient to force the contents both cooked
fibre and liquor through j, k, and o to any height required in a paper
mill. Should the pressure of the steam left in the boiler be insufficient
a further supply can be admitted through b, in practice we have not
found this neccessary.
Having now described the nature of our said Invention and par-
ticularized the same, we would have it understood that we do not confine
ourselves to the exact details shewn on the Drawings and herein
mentioned, as many modifications may be made; what we do claim
is, the mode of and apparatus for raising or elevating paper making
materials of the kind mentioned, substantially as set forth.
In witness whereof, I, the said Thomas Rose, have hereunto set
my hand and seal, this Thirtieth day of December, in the year of
our Lord One thousand eight hundred and seventy.
In the presence of,
CALEB W. WALKER,
Newton-le-Willows.
THOMAS ROSE. (L.S.)