A NEW OR IMPROVED MACHINE FOR THE PURPOSE OF DIBBLING GRAIN OF EVERY DESCRIPTION
Year: 1827

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
PATRICK COGGIN, of Wadworth, near Doncaster, in the County of York,
Machine Maker, send greeting.
WHEREAS His present Majesty King George the Fourth, by His
Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Nineteenth day of
May, now last past, did give and grant unto me, the said Thomas Patrick
Coggin, His especial licence, full power, sole privilege and authority, that I,
the said Thomas Patrick Coggin, my executors, administrators, and assigns,
and such others as I, the said Thomas Patrick Coggin, my executors, adminis-
trators, or assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term of years therein expressed,
should and lawfully might make, use, exercise, and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of "A NEW OR
IMPROVED MACHINE FOR THE PURPOSE OF DIBBLING GRAIN OF EVERY DESCRIPTION;"
in which said Letters Patent there is contained a proviso obliging me, the said
Thomas Patrick Coggin, by an instrument in writing under my hand and
seal, particularly to describe and ascertain the nature of my said Invention,
and in what manner the same is to be performed, and to cause the same
to be inrolled in His said Majesty's High Court of Chancery within two'
calendar months next and immediately after the date of the said recited
Letters Patent, as in and by the same, reference being thereunto had, will
more fully appear...
}

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Patrick Coggin, do hereby declare that the nature of my said
Invention, and the manner in which the same is to be performed, is described
and ascertained as follows, reference being had to the Drawings and Figures
hereto annexed, that is to say :-
eve
Drawing 1 Fig. 1 represents a side elevation of one of my improved
dibbling machines, one of the hoppers being removed in order to shew some
of the parts that would otherwise be hidden by it. Fig. 2 is a plan or bird's
view of Fig. 1, and Fig. 3 is a front elevation of the same machine.
In Fig. 1, A is the cone of one of the dibbling irons, and B is the wrought-
iron stem; on the upper part of this is fixed by two screwed nuts the handle c;
this part is similar to the dibbling irons commonly used in the hand, when no
machinery is applied or combined therewith. a is a collar which may be fixed
to the stem B, in a proper position by the square-headed screw b. c is an arm
projecting from the collar a, on the end of which a ball is formed, that is
retained in a spherical cavity made in the pair of brasses d fixed to one end of
the connecting bare; these form a ball and socket or universal joint. f. is
another pair of brasses having a spherical cavity in them also, to receive a ball
formed on the upper end of the short crank arm 9. The lower end of 'this.
arm has a boss with a square hole in its centre which receives the squared axis
of a brass roller, seen in dotted lines at h, inclosed in the wooden box D, and
it is made fast to it by the square nut seen on its end. E is the upper hopper
fixed on the top of one of the roller boxes, by the small hasps: seen on each
side of the box; this contains in separate compartments the seed and the
tillage, such as rape dust, bone dust, or any other suitable kind of tillage, which
is measured out at proper intervals by a brass roller, and conveyed into a hole
made in the earth with the cone of the dibbling iron, by the funnel 'or
receiving hopper F. G is the upper frame to which the roller boxes are fixed
by screws and nuts seen near i, i; these screws are made fast to the under 'side
of the boxes, and the parts that are screwed pass through slits made in two
cross bars, fixed at right angles across the frame G; one of these will be seen
at j, j, in Figs. 1 and 3. This forms an adjustment by which means the roller
boxes may be placed close together or separated further apart, as occasion may
require. The frame G is forked at H to receive the brass wheel I. K is a
forked bar screwed to the upper frame; this contains the small front' wheel k,
which with the wheel I, supports the rollers, boxes, and hoppers, and also the
seed and tillage they contain. L is the lower frame, which is also forked' at 1,
to admit the wheel I to enter it. The axis or centre pin shewn at m passes
through both frames, and is fixed by a square nut screwed on the opposite end

page_text: of the centre pin. The frame L is jointed at n, to enable the front part to
o is a
rise and fall, when the dibbling irons are raised or depressed.
cylindrical tube fixed to a cross bar pattached to the front part of the lower
frame L. Another tube which stands immediately behind it is hidden in this
view, but both may be seen in Figs. 2 and 3; through these tubes the stems
of the dibbling irons pass, as shewn in both Figures, and when in that situation
-they are made fast by a pin, which passes through a hole in each rod, above
the brass collet, seen on the top of the tube. A metal washer is also placed
between the bar p and the upper surface of the cones seen in each Figure at A.
M is a smaller cone or marker,, having a screwed stem which is fixed to a
small bar at the front of the lower frame L by a nut and thumb screw. The
bar to which the cone or marker M is fixed slides in a groove formed in the
distance
bar q, by which means the cone or marker M may be adjusted to any
from the lower frame that may be convenient. r, s, Fig. 1, are two pro-
jecting pins or stops that limit the motion of the crank arm g.
In the plan Fig. 2, t and u represent two brass cases or covers screwed
within the box D; the lower parts or sides are curved so as to fit.the upper part
or surface of the roller h. v, v, are two cavities formed in the roller h; these
receive a quantity of seed and tillage equal to their capacity, and when the
roller is moved partly round they convey it under the brushes w, w, and then
it drops through the small funnel or hopper into the hole made for it by the
dibbling iron. w, w, are two stiff short brushes, which are adjusted in point
of distance from the brass rollers by screws, which may be seen near w, w.
The four small tin straps, seen placed across the brushes, support them, and
assist in keeping them stationary. Two similar brushes are fixed to the other
side of the roller covers; the adjusting screws of these have longer stems, that
they may reach through the lid or cover of the large hopper, as seen at N.
Figs. 4 and 5 represent vertical sections of the hopper, by. planes at right
angles to each other; the lines where the planes are supposed to make their
sections are shewn in dotted lines at O, P, in Fig. 2. The partition or
compartment shewn at Q, Q, in each Figure, is that which contains the grain
to be dibbled; the other space contains the tillage.
Drawing 2 Fig. 6 represents a plan of one of the rollers detached from
its box, and other appendages, and drawn of its real and proper size, in order
to shew the shape of the cavities or cells and general construction more
clearly. Fig. 7 represents a section of the roller, also the brass cover and
brushes, taken through the dotted line,R in Fig. 6. S is a wrought-iron
axis, which passes through a square hole formed in the wooden cylinder T,
which is fixed the brass cylinder h; at each end of this brass cylinder
upon

page_text: a small flanch is formed, and on its surface four cavities or cells are made,
as shewn at v, v, v, v, in each Figure. Two of these cavities are made larger
and deeper than the other two, in order that they may be used to receive
(when occasion requires) a greater quantity of seed or grain of a larger size.
I shall here observe that what I call a complete roller is formed of two such
parts as I have just described, placed on the same axis as that shewn in Fig. 6,
but the right-hand portion of each roller (there being two rollers) which is
used for measuring the quantity of tillage, has all the cavities of the same size.
When this roller is fixed in its box, as shewn in Drawing 1, Fig. 2, only two of
the cavities (in each roller, are brought into action, because the motion given
to the roller is reciprocating, and the quantity of motion each way being not
more than a quarter of a revolution, consequently only one of the two smaller
cavities will be employed at each movement; but if it be desired to use the
larger cavities, the crank arm g must be released from the axis of the roller,
and then the roller must be turned halfway round, and the crank arm being
again fixed the larger cavities will be uppermost, in which position they will
come into action and supply a larger quantity of seed.
Drawing 2, Fig. 6, W is a brass collar, which is to be screwed to one
side of the box for one end of the axis S to move in. Fig. 8 represents a plan
of one of the roller covers and brushes of its proper size, a section being
shewn in Fig. 7. It will be observed in Figs. 1, 2, and 3 of Drawing 1, that
the rollers, boxes, and other parts of the machine are duplicate; I shall
therefore show how the two rollers are connected, so that they may be put
in motion simultaneously. The axis S of one of the rollers shewn in Fig. 6,
Drawing 2, has one end at U, squared so as to enter a square hole made in the
end of the axis of the adjoining roller, when they are placed in a line with
each other on the machine. By this method they are easily connected or
.coupled, and will consequently move simultaneously, but as it is sometimes
necessary to separate them wider apart when any kind of grain may require
the dibbled holes to be further separated, then the coupling key, seen at
Figure 9 is applied to connect the two axis together, in which case the
machine will appear as seen by a front view in Drawing 1, Fig. 14, the
position of the coupling key being shewn at V.
Drawing 2 Fig. 10 represents a plan of the connecting bar e, combined
with the collar a, and its arm c separated from the dibbling iron. Fig. 11
is a plan of the crank arm, separated from the connecting bar, shewing the
ball that is confined in the spherical cavity or socket seen in dotted lines
near f, in Figure 10. Figure 12 is a side view of Fig. 11; Fig. 13 shews a
side view of Fig. 10, in which the construction of the brasses, and the mode

page_text: All the Figures
of connecting the parts together will be more plainly seen.
on Drawing 2. are represented of the real and proper size for use.
Having enumerated the various parts, and shewn how they are constructed
and combined; I shall now explain the method of using the machine in the
most advantageous manner. The two compartments or chambers of each
hopper must be supplied, one with seed; the other with tillage, and the
machine being so placed that the two wheels and I may be moved in
the desired line to deposit the seed. The right foot is placed on the front of
the frame L, as shewn in Drawing 1, Figure 1, and a leather strap, attached
to the frame, is fastened over the front of the foot by a buckle, the heel being
close against the stop y, and each hand is made 'to grasp a handle. The two
cones of the dibbling irons A, A, are then pressed downwards by the power
of the foot, and each hand then turns each iron partly round, which clears
it from the earth in the usual manner. The marker M slightly enters the
ground, leaving an indentation that points out the place where the dibbling
cone is next to be inserted; which is effected by lifting up both irons and
advancing the machine forward until one of the dibbling cones enters the hole
made by the marker. The two cones A, A, are then pressed down by the foot,
and each hand again performs the twisting motion before described, which
acts upon the machine in the following manner-The collar arm c being
turned by the twisting motion given by the right hand to the dibbling iron;:
communicates the same to the connecting bar e, which also moves in like
manner the crank arm g, and that arm, being fixed to the axis of the measuring
rollers, causes them to turn partly round, and deliver from each a measure or cell
full of grain and also of tillage into the lower hopper or funnel F, which, being
now placed exactly over the holes that were previously made by the cones A, A,
will convey the seed and tillage both together into the holes with the greatest
certainty and precision. By the movements above described the rollers will be so
placed that another set of cavities become charged or filled, and when the dibbling
irons have been again pressed down, and the two handles C, C, twisted or turned in
a contrary direction, the second set of cells will discharge their contents into the
funnels F, which will be conveyed into the holes made in the earth to receive
them. It will now be evident that by simply twisting the dibbling irons in
opposite directions, a reciprocating motion is communicated to the rollers con-
tained under the hopper E in the boxes D, by which means the seed and tillage
contained therein is measured out and delivered through the funnel F in
proper quantities, and at such intervals as may be found most convenient for
dibbling various kinds of grain. The parts of the machine that are made
of iron, brass, or copper are coloured to imitate those metals. The boxes are