IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF PAPER
Year: 1863

page_text: LETTERS PATENT to Charles Edwards Amos, of the Grove, in the Borough
of Southwark, Engineer, for the Iuvention of "IMPROVEMENTS IN MACHINERY
FOR THE MANUFACTURE OF PAPER."
Sealed the 27th May 1863, and dated the 13th January 1863.
PROVISIONAL SPECIFICATION left by the said Charles Edwards Amos at
the Office of the Commissioners of Patents, with his Petition, on the
13th January 1863.
I, CHARLES EDWARDS ANOS, of the Grove, in the Borough of Southwark,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE.
MENTS IN MACHINERY FOR THE MANUFACTURE OF PAPER," to be as follows:-
My Invention of "Improvements in Machinery for the Manufacture of
Paper," relates to that part of the machinery in which the knots, lumps, pieces
of stick, dirt, and other impurities or extraneous matters are removed or
separated from the fine pulp of which the paper is made. My Invention is
more particularly applicable to the knotters through which the pulp flows in an
upward direction. A portion of the Invention is also useful when applied to
vats provided with knotters through which the pulp passes from the outer to
the inner side of the knotters, and in which the knots and other extraneous
matters have hitherto been left in the vats. In carrying out my Invention
the knots and other extraneous matters which accumulate below the straining

page_text: surface or knotter plates are drawn out or removed by means of a pump or
other analogous contrivance,and are conveyed into an ordinary knotter which
is to be used for the separation of such knots and extraneous matters from the
fine pulp, which may be drawn out-or removed therewith. The fine pulp will
then be allowed to flow back into the other knotter beneath the knoiter plates,
through which it will pass and be conducted into the paper machine, while the
knots will remain ou the top of the knotter plate of the ordinary knotter, and
may be readily removed therefrom by means of a skimmer or slice. By this
arrangement of parts there will be but little necessity for stopping the
machinery in order to cleanse the knotters, and the work may therefore
proceed uninterruptedly.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
_ by the said Charles Edwards Amos in the Great Seal Patent Office
on the 13th July 1863.
TO ALL TO WHOM THESE FRESENTS SHALL COME, I, CHARLES
EDWARDS AMOS, of the Grove, in the Borough of Southwark, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of January, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me.
the said Charles Edwards Amos, Her special license that I, the said Charles
Edwards Amos, my executors, administrators, and assigns, or such others as
I, the said Charles Edwards Amos, 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 MACHINERY FOR THE MANUFACTURE OF PAPER," upon the con-
dition (amongst others) that I, the said Charles Edwards Amos, by an instru-
ment 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 immediately after the date of
the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Charles Edwards Amos, do hereby
declare the nature of my 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 Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
My Invention of "Improvements in Machinery for the Manufacture of
Paper," relates to that part of paper-making machinery in which the knots,
lumps, pieces of stick, dirt, and other impurities or extraueous matters are
removed or separated from the fine pulp of which the paper is intended to be
made. My Invention is more particularly applicable to the knotters through
which the pulp flows in an upward direction, leaving the extraneous matters
below the straining or knotter plates. A portion of the Invention is also useful
when applied to vats provided with knotters, through which the pulp passes
from the outer to the inner side of the knotters, and in which the knots and
other extraneous matters have hitherto been left in the vats. In carrying out
my Invention the knots and other extraneous matters which accumulate below
the straining surface or knotter plates are drawn out or removed by means of
a pump or other analogous contrivance, and are conveyed into an ordinary
knotter which is to be used for the separation of such knots and extraneous
matters from the fine pulp which may be drawn out or removed therewith.
The fine pulp will then be allowed to flow back into the other or first knotter
beneath the knotter plates, through which it will pass and be conducted into
the paper machine, while the knots will remain on the top of the knotter plato
of the second or ordinary knotter, and may be readily removed therefrom by
means of a skimmer or slice. By this arrangement of parts there will be but
little necessity for stopping the machinery in order to cleanse the knotters,
and the work may therefore proceed uninterruptedly.
In the accompanying Drawings Fig. 1 is a ground plan of the machine;
Fig. 2 is an elevation taken partly in section on the line 1, 2, 3, 4, 5 and 6,
on the plan Fig. 1; Fig. 3 is a longitudinal vertical section of the knotter A
taken on the line 7, 8, of the plan.
A is a knotter of a similar construction to the knotter patented by Amos
and Clark in One thousand eight hundred and forty-nine. The driving
motion of the moving parts being applied in a like manner.
The pulp is,
however, supplied to and taken away from the knotter in a different manner
to that shewn in the Specification of Amos and Clark's Patent.
The unstrained pulp is raised by the ordinary lifter into the horizontal
trough or shoot B, from whence it passes through the ports a, a, to the space

page_text: beneath the knotter plates 6 or straining surface. Through these plates the
pulp passes in an upward direction, and is cleansed thereby from the ex-
traneous matters which are mixed therewith, and runs off by the spoutb to
the paper-making machine, the knots and impurities with some thickened
pulp remaining beneath the plates. After the knotter has been working
some time the knots and impurities would accumulate beneath and choke the
plates, and the machine would have to be stopped and the knotter cleansed,
but to prevent tbis an outlet pipe c is adapted to the space below the knotter
plates for the purpose of allowing the knots and other impurities to pass into
a "stuff pump" of the ordinary construction, or any other suitable lifter
which will force or lift them into another and ordinary knotter C, where the
knots, impurities, and refuse are left on the top of the plates, and can be
removed at intervals by a "slice" or "skinımer." The useful pulp that had
previously mixed with the knots passes downward through the plates of this
second knotter, and is conveyed by a pipe e to a receiving vat f, and from
thence through the pipe g into the first or ordinary lifter, where meeting and
mixing with fresh pulp'it will be supplied again to a trough or shoot B, and
will pass from thence down the passages a to the space beneath the plates of
the first. knotter A. The straining process is in this manner continued
uninterruptedly so long as the machine is required to be worked, a regulated
portion of the foul or thick pulp being drawn off continuously from beneath
the knotter plates of the knotter A, and supplied to the second knotter C
from which the extraneous matters can be removed without stopping the
machinery.
The advantages of the Invention will be duly appreciated when it is
understood that in cases where cylindrical, polygonal, or other constructions of
knotters are placed in a vat, from which vat the pulp passes through the
plates of the knotter, the knots and impurities are left in the vats and by
continuous working these knots and extraneous matters accumulate to such
an extent that the flow of the pulp to the paper-making machine becomes
irregular, and at length the machine has to be stopped and the vat cleansed
from knots and impurities. It will be evident therefore that any such
stoppage will be unnecessary if a small but uniform portion of the knots,
impurities, and thickened pulp be regularly and continually removed from the
vat by any ordinary "stuff pump" or other lifter; and by causing this
abstracted portion to pass through an entirely distinct ordinary knotter the
knots and impurities will be separated and left upon the plates, and can be
removed therefrom by the "skimmer" without affecting the flow of pulp to

page_text: the paper-making machine. The useful pulp which was previously mixed
with the knots and impurities will pass through the knotter plates, and may
be conveyed from thence to the ordinary lifter where it will be mixed with
fresh pulp, and the straining process continued.
In witness whereof I, the said Charles Edwards Amos, have hereunto
set my hand and seal, the Thirteenth day of July, in the year of our
Lord One thousand eight hundred and sixty-three.