IMPROVEMENTS IN DRILLS FOR SOWING TURNIP MANGOLD AND OTHER SEEDS
Year: 1883

page_text: LETTERS PATENT to Philip Pierce of Wexford Ireland Engineer for an
Invention of "IMPROVEMENTS IN DRILLS FOR SOWING TURNIP MANGOLD AND
OTHER SEEDS"
PROVISIONAL SPECIFICATION left by the said Philip Pierce at the Office of
the Commissioners of Patents on the 6th February 1883.
PHILIP PIERCE of Wexford Ireland Engineer "IMPROVEMENTS IN DRILLS FOR
SOWING TURNIP MANGOLD AND OTHER SEEDS
The object of this invention is to produce a cheap simple effective and durable
single drill turnip and mangold seed sower.
The main frame is of iron preferably cast in one piece with the prolongations of
its sides (the latter terminating in lugs which carry and in which revolves the
spindle on which is keyed the front roller) and also with the seed box.
It is not absolutely necessary for the success of this invention that the pro-
longations of the main frame should form integral parts of the said main frame
but I prefer to cast them in one piece because the distance of the centre of the
main roller spindle and the seed distribution wheel spindle is more readily made
uniform and facilitates the fitting up of the machine. The seed distributor wheel
spindle passes through the seed box-parallel or nearly parallel to the front roller
spindle and has fixed on it, by means of a key, pin or otherwise, at about the
centre of the box the distributor wheel the latter when in motion lifts the seed
continuously upwards and towards the backside of the box in the side of which is
an aperture. The seed delivery pipe has a flange at its upper end by which it is
bolted to the exterior of the backside of the box the seed when acted upon by the
seed distributor wheel will pass through the aperture before mentioned and drop
into the seed delivery pipe by which it is conveyed to the coulter and deposited in
the ground.
The flange portion of the seed delivery pipe has in its face a recess into which
the regulator diaphragm fits and which is secured therein by the pressure of the
flange against the box when bolted thereto. There is a regulator diaphragm between
the end delivery pipe and seed box the aperture therein being adjustable by a slide
for the purpose of allowing the desired quantity of seed to be deposited.
C

page_text: The diaphragm and slide I prefer to make of copper but any other non corrosive
metal would answer. The advantage of this non-corrosive diaphragm is that the
adjustable hole which regulates the quantity of seed deposited always remains
clean and perfect which is not obtained when the diaphragm is made of corrosive
metal.
The seed box is provided with a cover which is pivotted on a bolt passing
through a flange cast on the edge of the seed box this bolt is provided with an
elastic washer or spiral spring under its nuts and exerts a downward pressure on
the cover. In the top of the sced box is a recess and on a corresponding part of the
under surface of the cover is a projection which fits the recess so that when the
cover turning on the bolt before mentioned is put into its closed position it is
effectually fixed there by the projection falling into the recess.
The distributor wheel receives motion in the following manner. On the two
extremities of the seed distributing spindle I fix cranks at right angles or nearly
at right angles and on the extremities of the front roller spindle, I also fix
corresponding cranks set at or nearly at right angles cach pair I connect by rods
and thus obtain a certain and positive motion of the seed distributor spindle from
the front roller spindle when the machine travels forward on the drill to be sown.
It will be understood that the front roller is preferably of a convex form as is
usual in such machines.
By having the prolongations integral parts of the frame a considerable facility
will be afforded in the fitting up of the machine.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chanceller filed by the said Philip Pierce in the Great
Seal Patent Office on the 21st August 1883.
PHILIP PIERCE of Wexford Ireland Engineer
SOWING TURNIP MANGOLD AND OTHER SEEDS
"
"
IMPROVEMENTS IN DRILLS For
The object of this Invention is to produce a cheap, simple, effective and lasting
single drill Turnip and mangold seed sower all as hereafter described and tho
Invention will be best understood by reference to the accompanying drawings.
Figure 1. is a side elevation of a single drill turnip and mangold seed sower
constructed according to my Invention.
Figure 2. is a plan of same.
Figure 3 is a sectional elevation of the seed box, regulator diaphragm seed
distributor wheel, and upper part of seed delivery pipe. The latter being intended
to convey the seed to the coulter marked q.
Figures 4, 5, 6, 7 show the regulator diaphragm and its slide.
Figure 8, shews hinged cover of and seed box in section with spiral spring.
Similar letters of reference refer to like parts in all figures.
a, a, a, a is the main frame, c spindle of front roller; d, front roller, e seed box,
f seed distributor wheel spindle. y seed distributor wheel, h seed delivery pipe
seed box cover n n handles o back roller, p scraper, q coulter.
The main frame a a a a is of iron preferably cast in one pieco with the pro-
longations of its sides b b (the latter terminating in lugs which carry, and in
which revolves the spindle c on which is keyed the roller d) and also with the seed
box e,
It is not absolutely necessary for the success of this invention that the pro-
longations b b form integral parts of the main frame a a a a but I prefer to cast
them in one piece because the distance of the centre of the spindle c and spindle f
is more readily made uniform which facilitates the fitting up of the machine as
will hereafter be shown.
The spindle passes through the box e parallel or nearly parallel to the spindle o
and has fixed on it by means of a key pin or otherwise at or about the centre of
the box e the distributor wheel g the latter when in motion lifts the seed
continuously upwards and towards the back side of the box e in which side is an
aperture el Figure 3. The pipe h has a flange at its upper end by which it is
bolted to the exterior of the back-side of the box e the seed when acted upon by
the wheel g as already described will pass through the aperture e¹ before mentioned
and drop into the pipe h by which it is conveyed to the coulter q and deposited in
the ground.
The flange portion of the pipe h has in its face a recess into which the regulator
diaphragm fits and which is secured therein by the pressure of the flange against
the box e when bolted thereto. The regulator diaphragm is constructed as
shewn by Figures 4, 5, 6, & 7. The peculiar shaped aperture (Figure 6) being
adjustable by the slide i for the purpose of allowing the desired quantity of seed
to be deposited.
The diaphragm and slide I prefer to make of copper but any other non-corrosive
metal would answer. The advantage of this non-corrosive diaphragm is that
the adjustable hole which regulates the quantity of seed deposited, always remains
clean and perfect, which is not obtained when the diaphragm is made of corrosive
metal.
The seed box e is provided with a cover; which is pivotted on a bolt passing

page_text: through a flange cast on the edge of the seed box e; this bolt is provided with an
elastic washer or spiral spring under its nuts and exerts a downward pressure on
the cover j. In the top of the seed box is a recess k and on a corresponding part
of the under surface of the cover j is a projection which fits the recess / so that
when the cover j turning on the bolt before mentioned is put into its closed
position it is effectually fixed there by the projection falling into the recess k.
The distributor wheel g receives motion in the following manner. On the two
extremities of the spindle f I fix at right angles or nearly at right angles the
cranks and on the extremities of the spindle c I also fix corresponding cranks,
set at or nearly at right angles each pair I connect by the rods m m and thus
obtain a certain and positive motion of the spindle f from the spindle c when the
machine travels forward for the drill to sow the seed. It will be understood that
the roller d is of a convex form as is usual in such machines.
From the foregoing it will be seen, that by having the prolongations b b integral
parts of the frame a, a, a, a, considerable facility will be afforded in the fitting up
of the machine.
Having now described the nature of my said invention and in what manner the
same is to be performed I declare that I claim :-
:-
First The combination in a single drill turnip and mangold seed sower, of a
framing preferably cast in one piece with the seed box and prolongations of its
sides which prolongations act as bearings for the front roller spindle, the non-
corrosive diaphragm fixed between the seed delivery pipe and seed box and the
method of transmitting motion to the seed distributor wheel by connecting rods
and cranks all as herein before fully described and illustrated with reference to the
accompanying drawings.
Second: The combination in a single drill turnip and mangold seed sower of a
framing preferably cast in one piece with the seed box, the non-corrosive
diaphragm fixed between the seed delivery pipe and seed box and the method of
transmitting motion to the seed distributor wheel by connecting rods and cranks
as herein fully described and illustrated with reference to the accompanying
drawings.
Third-In a single drill turnip. and mangold seed sower pivotting the cover of
a seed box on a bolt fitted with an elastic washer or spiral spring under its nuts a
recess in top of seed box and a projection on the under side of cover as herein
fully set forth.
In witness whereof I the said Philip Pierce have hereunto set my hand and
seal this Sixteenth day of August in the year of our Lord One thousand eight
hundred and eighty three.