Improvements in Turnwrest Ploughs.
Year: 1892

page_text: Date of Application, 3rd June, 1892-Accepted, 23rd July, 4892
COMPLETE SPECIFICATION.
Improvements in Turnwrest Ploughs.
We, JAMES HORNSBY, JOHN INNOCENT, and ISAAC TROLLEY, all of Spittle-
gate Iron Works, Grantham in the County of Lincoln, Engineers, do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
The improved turnwrest plough is fitted with a round beam, the round portion
of the beam extending from behind the bodies to the bridle. Behind the bridle a
rocking bracket is mounted to turn upon the beam; this bracket carries the land
and furrow wheels. These wheels are adjustable and take the position of land and
furrow wheels alternately. Behind this rocking bracket a bracket carrying a
locking bolt is fixed to the beam; this locking bolt holds the wheels in position
when in work.
The bodies are fixed to a bracket mounted on the beam and free to turn about
half a revolution on the beam as a centre. This bracket extends forwards and
carries the coulters, also the skim coulters or skeifs, so that the bodies coulters and
skim coulters all turn together from the position for right hand ploughing to the
position for left hand ploughing or vice versa. To hold the ploughs in their proper
working position a bracket is fixed to the beam by the side of the bracket to which
the plough bodies are fixed. This fixed bracket carries a locking bolt actuated by
a lever that fixes either the right or left hand plough in position for work as may
be desired.
To the back end of the beam the yokes or handles are fixed.
If desired one of the bodies may be taken off and the implement used as an
ordinary plough, the jointed bracket to which the bodies are attached being made
fast to the fixed bracket by a bolt.
In order that our invention may be fully understood and readily carried into
effect we will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of a turnwrest plough in accordance with our
invention.
Figure 2 is a plan view of the same with parts removed.
Figure 3 is an enlarged side view of the bracket to which the bodies are fixed,
also of the locking bracket that is fixed to the beam, and parts of the bodies and
beam are also indicated.
Figure 4 shews an end view of Figure 3, a second position of the rocking bracket
and plough bodies is represented in dotted lines.
Figure 5 shews a side elevation of the locking bracket for securing the rocking
bracket on which are the plough bodies.
Figure 6 shews a side elevation of a part of the bracket to which the bodies are
fixed.
A is the bridle attached to the beam by the bolts, the sides of the round beam
being made flat where the sides of the bridle fit against it.
B is the beam, it is a straight bar circular in section except at its ends where it
is flattened for attachments to be made.
C is a bracket mounted on the round part of the beam and free to vibrate on the
beam. At the ends of this bracket are sockets receiving stems which are clamped
fast therein by binding screws. The guide wheels are mounted on other stems at
right angles to the first and clamped in sockets at their lower ends. Thus these
wheels are adjustable to suit the work being done by the plough.

page_text: D is a bracket fixed to the beam; this bracket carries a spring locking bolt.
Recesses are made in the bracket C, into which the end of the spring bolt passes
to fix the bracket and wheels in the proper position for work, so that the wheels
may act alternately as land and furrow wheels.
É is the bracket to which the coulters and bodies are fixed. This bracket
extends from the back of the bodies to a point sufficiently forward to carry the
coulters. The bracket E is free to turn on the round beam, and the plough
bodies F F are fixed to the bracket E.
The bracket G is fixed to the beam and carries a locking bolt H, which when
passed through one or other of the lugs J upon the bodies fixes the bodies in their
proper position for work.
The bolts are controlled by lever handles conveniently placed.
When it is desired to make the implement into an ordinary plough one of the
bodies may be detached from the bracket E, and the brackets E and G bolted
together by a screw bolt inserted at K. The handles or yokes L are fixed to the
rear end of the beam.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :—
1, A turnwrest plough having a beam formed of a round bar with bridle fixed
at one extremity and yokes at the other; a rocking bracket turning upon the beam
and carrying land and furrow wheels; a bracket fixed upon the beam with bolt for
locking the rocking wheel bracket; another rocking bracket turning upon the beam
carrying two plough bodies and coulters; and another bracket fixed on the beam
with bolt for locking the plough bracket in position for right or left hand
ploughing.
2. A turnwrest plough having adjustable land and furrow wheels carried by a
.bracket which can turn upon the beam and be locked fast thereon in position either
for right or left hand ploughing.
3. A turnwrest plough having plough bodies fixed to a bracket which can turn
upon the beam and having also a bracket fixed upon the beam against which the
plough bracket can be brought to abut with the ploughs in position either for right
or for left hand ploughing and a sliding bolt operated by a lever handle locking the
plough bracket to the fixed bracket.
4. A turnwrest plough having plough bodies fixed to a bracket which can turn
upon
the beam and having also a bracket fixed upon the beam against which the
plough bracket can be brought to abut with the ploughs in position either for
right or left hand ploughing, and a bolt locking the brackets together.
5. A turnwrest plough substantially as described and illustrated by the annexed
drawings.
Dated this 2nd dox of June 1809
JAMES HORNSBY.
JOHN INNOCENT.
ISAAC TROLLEY.