IMPROVEMENTS IN MACHINES OR APPARATUS FOR PULPING TURNIPS AND OTHER VEGETABLES
Year: 1871

page_text: LETTERS PATENT to Samuel Corbett, of Wellington, in the County
of Salop, Agricultural Implement Manufacturer, for the Invention
of "IMPROVEMENTS IN MACHINES OR APPARATUS FOR PULPING TURNIPS AND
OTHER VEGETABLES."
Sealed the 14th July 1871, and dated the 3rd February 1871.
PROVISIONAL SPECIFICATION left by the said Samuel Corbett at
the Office of the Commissioners of Patents, with his Petition, on
the 3rd February 1871.
I, SAMUEL CORBETT, of Wellington, in the County of Salop, Agri-
cultural Implement Manufacturer, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN MACHINES OR APPARATUS FOR
PULPING TURNIPS AND OTHER VEGETABLES," to be as follows :—
My Invention consists of the improvements herein-after described in
those kinds of machines or apparatus for pulping turnips and other
vegetables in which the pulping knives are carried by a disk or wheel.

page_text: My Invention consists, firstly, in making and fixing the pulping
knives in such a manner that the said knives can be readily fixed to
and removed from the disk or wheel carrying them. For this purpose
I combine the row or rows of pulping knives and the holes under them
for the pulp to pass through in a metal plate. The said plate with the
knives and holes being made by the process of casting or otherwise.
I make these knife plates by preference of an oblong figure; I build
up the pulping disk or wheel by combining a series of the said plates
in the following manner :-I make in the pulping disk or wheel in the
direction of radii a series of oblong apertures or openings, the said
openings commencing near the rim of the disc and terminating near
the boss or centre of the said disk. I place four or other number of the
pulping knife plates over or in the said radial openings in the disk, and
fix the said plates to the disk at the rim and boss by screw pins and
nuts, or other fastenings. By building up the pulping disk in this way
the breaking of or injury to the knives of one plate only necessitates
the removal of the said injured plate and the substitution therefor of
_a_fresh_plate_or_the_reversal_of_the_plate when the plates are made
reversible as herein-after described to render the machine again fit for
use.
My Invention consists, secondly, in making the said pulping knife
plates reversible. For this purpose I provide the plates with one row of
pulping knives and holes on one side and two or more rows of pulping
knives and holes on the opposite side. When the said plates are fixed
to the pulping disk or wheel so that those faces of the plates containing
the single row of pulping knives and holes are presented to the food to
be pulped, the pulper may be worked by hand. When, however, a
large quantity of food is required to be pulped in a short time the said
plates are reversed and fixed to the disk so as to present to the food to be
pulped those faces of the plates containing the double or treble row of
pulping knives and holes. The pulper in this case being worked by
steam or other power.
By these improvements the pulper can be made in a simple and
inexpensive manner to pulp a small or large quantity of food and be
worked either by hand or by steam or other power.
I also make the reversible pulping knife plates with a single row of
knives and holes on each side, or with a double or treble row of knives

page_text: and holes on each side so that the reversal of the plates in case of injury
to one side makes the pulper again ready for use.
The reversible pulping knife plates may also be made capable of
pulping the food of different degrees of coarseness by making the knives
on one side of the plates of a different size to those on the opposite side
of the plates.
A comb may be combined with the pulper, through which comb the
knife plates pass for clearing the knives and cutting the last pieces of
the turnips or food being pulped.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Corbett in the Great Seal Patent Office
on the 27th July 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
CORBETT, of Wellington, in the County of Salop, Agricultural Implement
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of February, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Corbett, Her special licence
that I, the said Samuel Corbett, my executors, administrators, and
assigns, or such others as I, the said Samuel Corbett, 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 "IMPROVE
MENTS IN MACHINES OR APPARATUS FOR PULPING TURNIPS AND OTHER
VEGETABLES," upon the condition (amongst others) that I, the said
Samuel Corbett, my exccutors 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

page_text: Patent.
NOW KNOW YE, that I, the said Samuel Corbett, 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 :-
My Invention consists of the improvements herein-after described in
those kinds of machines or apparatus for pulping turnips and other
vegetables in which the pulping knives are carried by a disk or wheel.
My Invention consists, firstly, in making and fixing the pulping
knives in such a manner that the said knives can be readily fixed to and
removed from the disc or wheel carrying them. For this purpose I
combine the row or rows of pulping knives and the holes under them for
the pulp to pass through in a metal plate, the said plate with the knives
and holes being made by the process of casting or otherwise. I make
these knife plates by preference of an oblong figure. I build up the
pulping disc or wheel by combining a series of the said plates in the
following manner :-I make in the pulping disk or wheel in the direction
of radii a series of oblong apertures or openings, the said openings com-
mencing near the rim of the disk and terminating near the boss or centre
of the said disk. I place four or other number of the pulping knife
plates over or in the said radial openings in the disk, and fix the said
plates to the disk at the rim and boss by screw pins and nuts or other
fastenings. By building up the pulping disk in this way the breaking of
or injury to the knives of one plate only necessitates the removal of the
said injured plate and the substitution therefor of a fresh plate or the
reversal of the plate, and the plates are made reversible as herein-after
described to render the machine again fit for use.
My Invention consists, secondly, in making the said pulping knife
plates reversible. For this purpose I provide the plates with one row of
pulping knives and holes on one side and two or more rows of pulping
knives and holes on the opposite side. When the said plates are fixed
to the pulping disk or wheel so that those faces of the plates containing
the single row of pulping knives and holes are presented to the food to
be pulped the pulper may be worked by hand. When, however, a
large quantity of food is required to be pulped in a short time the said
plates are reversed and fixed to the disk so as to present to the food to be

page_text: pulped those faces of the plates containing the double or treble row of
pulping knives and holes, the pulper in this case being worked by steam
or other power.
By these improvements the pulper can be made in a simple and
inexpensive manner to pulp a small or large quantity of food, and be
worked either by hand or by steam or, other power.
I also make the reversible pulping knife plates with a single row of
knives and holes on each side, or with a double or treble row of knives
and holes on each side, so that the reversal of the plates in case of injury
to one side makes the pulper again ready for use.
The reversible pulping knife plates may also be made capable of pulping
the food of different degrees of coarseness by making the knives on one
side of the plates of a different size to those on the opposite side of the
plates.
A comb may be combined with the pulper, through which comb the
knife plates pass for clearing the knives and cutting the last pieces of
the turnips or food being pulped.
Having explained the nature of my Invention, I will proceed to
describe with reference to the accompanying Drawings the manner in
which the same is to be performed.
Figure 1 represents in side elevation (the cover of the case being
removed), Figure 2 in end elevation, and Figure 3 in vertical section a
pulping machine containing my improvements, the said machine being
worked by steam or other power; Figure 4 represents in back elevation,
and Figure 5 in edge view on a larger scale, the disk or wheel to which
the knife plates are affixed; Figure 6 is a front elevation and Figure 7 a
vertical section of the same, to which some of the knife plates are
affixed. The same letters of reference indicate the same parts in the
several Figures of the Drawings.
a is the case of the machine within which the pulping disk works;
b is the hopper; dis the driving shaft of the pulping disk; and c the
driving pulley; e is the pulping disk or wheel to which the pulping
knife plates g are affixed. In the said disk or wheel e in the direction
of radii is a series of oblong openings or apertures f, the said openings
commencing from the rim and terminating near the boss or centre of
the disk or wheel. The pulping knife plates g are made of a rectangular

page_text: or oblong figure to fit into or over the openings or apertures fin the
disk e, the said knive plates g being fixed by screw pins and nuts h, h,
at the rim and boss of the disk, as best seen in Figures 6 and 7. The
fixed knife plates 7 are situated flush with the acting face of the rim and
boss of the disk, as seen in Figures 3 and 7.
The constructing or. building up of the pulping disk in the manner
represented permits of the removal of an injured knife plate and the
substitution of a fresh one therefor or the reversal of a knife plate to be
effected with great facility.
The knife plates 9 represented in Figures 1, 2, 3, 6, and 7 are reversible
ones, that is, the said plates have two rows of knives or teeth and holes
on cach side. A cross section of one of the plates g is represented of the
full size in Figure 8. By an examination of the said section the shape
of the knives and their holes on either side the plate will be readily seen.
In case of accident to the knives or teeth of one of the plates g of the
pulping machine the reversal and refixing of the injured plate renders
the machine again fit for use.
The pulping machine represented in the Drawings in which the
reversible pulping knife plates are furnished with double rows of pulping
knives and holes is worked by power. For a pulping machine to be
worked by hand I use pulping knife plates with a single row of knives
and holes on each side of the plate, as represented in front elevation, end
clevation, and side elevation in Figure 9; a cross section of the plate
Figure 9 is represented of the full size in Figure 10.
When the pulping machine is to be worked at pleasure either by hand
or power I make the pulping knife plates with a single row of pulping
knives and holes on one side, and two or more rows of pulping knives
and holes on the opposite side. By fixing the plates to the pulping disk
or wheel, so that those faces of the plates containing the single row of
pulping knives and holes are presented to the food to be pulped, the
pulper may be worked by hand. By reversing and fixing the said plates
so that the double or treble row of pulping knives and holes are presented
to the food the said pulper is converted into a pulper to be worked by
steam or other power. Instead of providing the reversible pulping knife
plates with knives and holes one either side, as before described, one
side of the plates may be furnished with pulping knives and holes, and
the opposite side with an ordinary stripping knife and holes, that is, a
+

page_text: knife for cutting the turnips into strips instead of pulping them. This
reversible compound stripping and pulping knife plate is represented in
back and front elevations, side elevation, and end elevation in Figure 11,
the corrugated stripping knife on one side of the plate being marked i,
and the pulping knives on the opposite side of the plate being marked .
Or a stripping knife or knives on either side the plate may be used.
When the stripping knife or knives on one side of the plate is or are
worn. or injured the reversal of the plate brings the other stripping knife
or knives into use.
Although I have represented my improvements in constructing or
building up the pulping disk or wheel as applied to reversible pulping
knife plates, yet the same method of construction may also be applied to
pulping knife plates having pulping knives on one side only.
My improvements are applicable to machines in which the pulping
wheel or disk is situated horizontally instead of vertically, as illustrated
in the Drawings.
Having now described the nature of my Invention, and the manner in
which the same is to be performed, I wish it to be understood that I do
not limit myself to the precise details herein described and illustrated, as
the same may be varied without departing from the nature of my Inven-
tion; but I claim as my Invention,-
Firstly. The improvements in constructing the pulping disks or wheels
of machines or apparatus for pulping turnips and other vegetables
herein-before described and illustrated in the accompanying Drawings,
that is to say, making the row or rows of pulping knives and the holes
for the same in the form of a plate, and building up the pulping disk or
wheel by fixing the pulping knife plates in or over openings or apertures
in the said disk or wheel for the purpose and substantially as described
and illustrated.
Secondly. Making the pulping knife plates of the said pulping disk or
wheel reversible, as herein-before described and illustrated in the accom-
panying Drawings, that is to say, making the said knife plates with a
single row or a double or treble row of knives and holes on each side of
the plate, or a single row of knives and holes on one side, and a double
or treble row of knives and holes on the opposite side, or one or more
rows of pulping knives and holes on one side of the plate, and a stripping
knife or knives on the other side of the plate; or a stripping knife or

page_text: knives on each side of the plate, substantially as and for the purpose
described and illustrated.
In witness whereof, I, the said Samuel Corbett, have hereunto set
my hand and seal, this Twenty-first day of July, in the year of our
Lord One thousand eight hundred and seventy-one.
Witness,
GEORGE CORBETT,
Wellington,
Salop.
SAMUEL CORBETT. (L.S.)