IMPROVEMENTS IN PLOUGHS
Year: 1873

page_text: LETTERS PATENT to William Tasker, of Waterloo Iron Works,
Andover, Southampton, for the Invention of "IMPROVEMENTS IN
PLOUGHS."
Sealed the 22nd August 1878, and dated the 28th February 1873.
PROVISIONAL SPECIFICATION left by the said William Tasker at
the Office of the Commissioners of Patents, with his Petition, on
the 28th February 1878.
I, WILLIAM TASKER, of Waterloo Iron Works, Andover, Southampton,
do hereby declare the nature of my said Invention for "IMPROVEMENTS IN
PLOUGHS," to be as follows:-
This Invention has for its object improvements in the head or steerage.
part of a plough; it is applicable to an ordinary single furrow plough as
well as to double ploughs, or ploughs with more than two frames,
and turn furrows or bodies, and cosists mainly in so constructing or
arranging the wheels and axles of a plough, as that when the plough is.
at work the head of the plough is kept rigid, or as a fixed head plough..

page_text: The axles of the land and furrow wheels are connected with a bar,
stump, or head pin, so arranged that when the plough is in work, the
bar, stump, or head pin inclines from an upright position. By means
of a lever or other suitable arrangement, the bar, stump, or head pin
can be brought to a vertical or almost vertical position, and the axles {
and wheels placed in another position, lifting the plough frame or body
clear of its work, and in this new position from the arrangement of the
axles of the land and furrow wheels, the bottom or portion of these
wheels, which rest on the ground, are brought to the same level, and the
plough can be easily turned at the headlands or. elsewhere.
By a slight adjustment of the arrangement for holding the plough
head as a fixture, the head can be liberated, and the plough used as a
swivel head plough. The advantage of this is great, as the plough can
be either worked as a swivel head or as a fixed head plough, as the nature
of the land may require.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Tasker in the Great Seal Patent Office on
the 26th August 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TASKER, of Waterloo Iron Works, Andover, Southampton, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of February, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Tasker, Her special license that I,
the said William Tasker, my executors, administrators, and assigns, or
such others as I, the said William Tasker, my executors, administrators,
or 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 PLOUGHS," upon the
condition (amongst others) that I, the said William Tasker, my exccutors
or administrators, by an instrument in writing under my hand and

page_text: scal, 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
5 Patent.
NOW KNOW YE, that I, the said William Tasker, 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 accompany Drawings
and to the letters and figures marked thereon, that is to say:-
•
My said Invention has for its object improvements in the head or
steerage part of a plough, it is applicable to an ordinary single furrow
plough as well as to double ploughs, or ploughs with more than two
frames, and turn furrows or bodies, and consists mainly in so con-
structing or arranging the wheels and axles of a plough, as that when
the plough is at work the head of the plough is kept rigid, or as a fixed
head plough.
The axles of the land and furrow wheels are connected with a bar,
stump, or head pin, so arranged that when the plough is in work the
bar, stump, or head pin inclines from an upright position, or may
assume a horizontal position. By means of a lever or other suitable
arrangement, the bar, stump, or head pin can be brought to a vertical
or almost vertical position, and the axles and wheels placed in another
position lifting the plough frame or body clear of its work, and in this
new position, from the arrangement of the axles of the land and furrow
wheels, the lower surfaces of these wheels which rest on the ground are
brought to the same level, and the plough can be easily turned at the
headlands or elsewhere.
By a slight adjustment of the arrangement for holding the plough.
head as a fixture the head can be liberated, and the plough used as a
swivel head plough. The advantage of this is great, as the plough can
be either worked as a swivel head or a fixed head plough,-as the nature
of the land may require.
And in order that my said Invention may be fully understood I shall
now proceed more particularly to describe the same, and for that purpose
shall refer to the several Figures on the annexed Sheet of Drawings, the

page_text: Figures.
Figure 1 of my Drawings represents my improved plough lifted out of
work and ready for turning at the headlands, or for travelling.
Figure 2 represents the same plough in position for work.
Figure 3 is a front elevation of the plough head, when the plough is
in the position for travelling, corresponding to Figure 1, and Figure 4 is
a similar view, showing the plough in its position for work, corresponding
to Figure 2.
A, A, are the frames or plough bodies which may be of any suitable
construction; B, B, are the plough beams or principal framing of the
plough; C, C, are the plough handles; D is the lever for raising or
lowering the plough out of or into work; E is a connecting rod for
connecting the lever D to the plough head; F is the furrow wheel and
the axle of the same; G is the land wheel, and G₁ the corresponding
axle; H, H, is the part of plough head through which the bar, stump,
or head pin K passes. That part of head H, H, which projects through
the beam is marked H', H', and forms the fulcrum on which the head
of the plough works when moved by the lever D and connecting rod E.
L is a part of the head which is rigidly attached to the upright bar K,
and which also carries the axles F, G, of the furrow and land wheels;
M, M, are steerage bars connecting the head to the draft link and
chain N; O, O, are quadrant-shaped links having one end attached
to II, H, and the other end connected by an adjustable pin to the plough
beams; this quadrant is for fixing the head when it is desired to use the
plough as a fixed head plough; P is a wheel for carrying the hind part
of the plough; Q, Q, is a line representing the bottom of the furrow,
and R, R, is a line representing the surface of the land.
In Figure 2 the plough is represented in position for work, and it will
be seen that by pulling back the lever D, the head of the plough
working on the part H', H', is brought forward, and when the lever D
is in the position shown in Figure 1, the head pin K is in a vertical
or almost vertical position, and the plough frames or bodies are lifted
clear of the ground, as in Figure 1.
On reference to Figuro 3 it will be seen that the head pin or stump K
4
4

page_text: part of H, H, the parts of the head marked L, L, the wheels F, G, and
bars and chain M, M, and N, N, can be turned in the direction required,
thus forming a compact steerage.
When the plough is required to be worked as a swivel head plough,
the lever D, the connecting rod E, and part of the head H are kept in
position by a chain S. The adjusting pins T being liberated in the
quadrants O, O; the quadrants are free, and the plough can be turned
on the head pin K, thereby enabling the plough to be used as an
ordinary swing head plough. The head pin K being capable of being
brought from a horizontal position to a vertical position, it is possible to
hold the same in any intermediate position either by means of the
chain S or the quadrants and pins O, O, and T, T, thereby enabling the
plough to be worked at the depth required; and from reference to
Figures 1, 2, and 3, it will be seen that the arrangement of the wheels
and axles is such as to enable them to accomodate themselves to the
depth of the ploughing.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may be used or
carried into effect, I would observe that I lay no claim to the lifting of
a plough out of work, or working a plough as a swivel head, or working
a plough as a fixed head, but what I consider to be novel and original
and therefore claim as the Invention secured to me by the herein-before
in part recited Letters Patent is, the arrangement and combination of
parts substantially as herein-before described and illustrated by the
Drawings annexed.
In witness whereof, I, the said William Tasker, have to this my
Specification set my hand and seal, the 23rd day of August