CERTAIN IMPROVEMENTS ON OR ADDITIONS TO PLOUGHS
Year: 1827

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
ASPREY STOTHERT, of the City of Bath, Founder, send greeting..
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourth day of April, One thousand eight hundred and
twenty-seven, in the eighth year of His reign, did, for Himself, His heirs and
successors, give and grant unto me, the said Henry Asprey Stothert, His
especial licence that I, the said Henry Asprey Stothert, my exors, admors,
and assigns, or such others as I, the said Henry Asprey Stothert, my exors,
admors, or.assigns, should at any time agree with, and no others, from time to
time and at all times 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 "CERTAIN IMPROVEMENTS ON
OR ADDITIONS TO PLOUGHS;" in which said Letters Patent there is contained a
proviso. obliging me, the said Henry Asprey Stothert, 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 Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said in
part recited Letters Patent, as in and by the same, reference being thereunto
had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Henry Asprey Stothert, do hereby declare that the nature of my said Inven-
tion, and the manner in which the same is to be performed, are particularly

page_text: described and ascertained in and by the Drawings hereunto annexed, and
the following description thereof (that is to say):-
A, A, represents two side views of the same two-wheel plough, of which the
frame, the turnfurrow sliders, land and ground, and the share, are made of cast
iron. The draught rod, marked No. 1, is connected to the body of the
plough, and also to the beam of the plough, by means of a staple with three
holes in it, beyond which is a flexible joint, allowing the wheels to turn in any
direction. This rod is shewn separately in four views, marked No. 1. A, con-
nected to the draft rod, is a regulator with holes in it, having a deep socket
at each side, which allows the regulator to slide up and down the guide bars
that support the head of the plough, and thereby adjusts the line of draft to
the height of any horse's shoulder. Sliding on the regulator sideways is a gear
bed, which clasps the regulator, as shewn in Fig. 3, A, and is the means of
connecting the draft.rod with the traces. On the top of the guide bars is a
cross head, having a screw and nut fixed upon it. On the nut rests a cup and
ball joint, which enables the plough to incline on either side, on turning round
at the end of the furrow. The above screw and nut regulate the depth of the
plowing, and are shewn in two figures marked No. 9, A.
Now the improvements or the parts of which I claim the Invention, either
wholly or in the application, and which are illustrated by the Drawing or
Plate aforesaid, are as follows:-
First, the regulator, two views and a section of which are shewn separately
from the plough, and are marked No. 2, A, and 3, A, the effect of which is,
that the line of draft may adjust itself between the point of resistance and the
horse's shoulder. The gear bed, as connected with the regulator, is shewn in
separate parts, see No. 4, A. Another gear bed regulator, which I claim as
being on the same principle, is shewn by No. 5, A, two views. No. 1, 2, and
3, B, shew another gear, suitable for a one-wheel plough, of which I claim the
Invention. This gear, by means of two sockets, wherein two pins connected
with the regulator slide up and down, produces the same effect as the regulator
No. 2 and 3, A.
I claim also the application of the cup and ball joint, and shewn in six
views marked No. 8, A; also the mode of raising or lowering the land wheel
by means of a screw and nut, secured in a guide socket at one end of the axle
bed (as shewn in three figures, No. 10, A), for regulating the depth of
ploughing, and at the same time keeping the plough upright. The aforesaid
screw and nut are set in a long dovetailed mortice. The screw is turned by a
handle on the top, as shewn in Figs. No. 6 and 7, A, and particularly in 7, A.
The handle of the screw has a sliding socket, terminating in a finger (6, A, b)

page_text: which, dropping behind the cross head, causes the screw to be stationary at any
height.
I claim also the arrangement of the head gear of a swing plough, as shewn
in Figures No. 1, 2, and 3, C. The draft of this swing plough is fixed by
means of a screw marked A, turned by the handle B working on the cross
bar C, which cross bar is connected by the slides working through the
sockets D, with the regulating bar E, to which the draught rod is attached.
The handle of the screw has a sliding socket b, which drops behind the cross
bar F, and fixes the screw to any height required.
I claim also the principle of the construction of the turnfurrows D, No. 1
and 2, first, as it regards the form. Every section of this turnfurrow, whether
longitudinal or transverse, forms a straight line (see front and side views, D,
No. 4). Thus the twist of the turnfurrow being determined on, all the
lines b, b, and a, a, are straight. Secondly, as regards the long narrow mor-
tices in No. 1, D, for admitting air to prevent the adhesion of the soil.
Thirdly, as regards the holes D, No. 2, for attaching the cutter or cutter's
knife or knives, similar to D, No. 3, which are so shaped as to cleave the
furrows horizontally, or nearly so, in passing.
The several parts which I particularly claim are on coloured ground in the
Drawing annexed.
In witness whereof, I, the said Henry Asprey Stothert, have hereunto
set my hand and seal, this Fourth day of October, in the year of our
Lord One thousand eight hundred and twenty-seven.
HENRY ASPREY (L.s.) STOTHERT.
AND BE IT REMEMBERED, that on the Fourth day of October, in the
year of our Lord 1827, the aforesaid Henry Asprey Stothert came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.