Plough Coulter Clearing and Dung Spreading Appliance.
Year: 1892

page_text: Date of Application, 9th Jan., 1892
*Complete Specification Left. 16th Aug., 1892-Accepted, 1st Oct., 1892
PROVISIONAL SPECIFICATION.
Plough Coulter Clearing and Dung Spreading Appliance.
We, JAMES THOMSON, Farmer, Mains of Skeith, Deskford, Bauffs, and
WILLIAM DUNCAN, Blacksmith, Berryhillock, Deskford, Banffshire, do hereby
declare the nature of this invention to be as follows:-
It is an appliance for clearing the coulter of a plough of dung or other matter
lying on the surface of a field, and for spreading it aud placing it so as to be
covered by the furrow in ploughing. It is attached to the beam of the plough and
consists of rotating arms driven by the wheel of the plough; and, as the plough is
drawn along, the arms rotate in an opposite direction from the motion of the wheel,
shearing close by the coulter and freeing it of any accumulation of dung or other
matter, and throwing it in a forward and sidelong direction towards the furrow.
Also a small skim-coulter is attached to the coulter on the furrow side, which
relieves the arms of the dung or other matter and pushes it towards the furrow.
Dated this 7th day of January 1892.
JAMES THOMSON.
WILLIAM DUNCAN.
COMPLETE SPECIFICATION.
Plough Coulter Clearing and Dung Spreading Appliance.
We, JAMES THOMSON, Farmer, of Mains of Skeith, and WILLIAM DUNCAN,
Blacksmith, of Berryhillock, both of Deskford in the County of Banff, North
Britain 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 :-
This invention which relates to a plough coulter clearing and dung spreading
appliance, has for its object to provide an appliance which will clear the coulter of
dung or other matter lying on the surface of a field and spread and place the said
dung or matter in such a manner as to be covered by the furrow in ploughing.
In carrying out our said invention as shown in the annexed drawings, Figure 1 of
which is a perspective view of part of a plough having our improvements attached
thereto, we mount a series of revolving or rotating arms A, to the main beam B of
the plough; the said arms A being mounted in such a manner as to enable them to
be driven by the plough's wheel C, through the medium of the grooved pulleys D
and chain E; the said chain E is crossed so as to cause the arms A to be rotated
in an opposite direction from the wheel C, when the plough is being driven along.
When the plough is in motion the arms A shear close by the coulter F and so free
it of any accumulation of dung or other matter which is then thrown in a forward
and slightly sidelong direction towards the furrow; the said sidelong direction
being obtained by means of the ends of the arms A being curved slightly inwards
towards the beam of the plough.
In order to assist the arms A in spreading the dung in the furrow as well as to
free them from such, we provide a small skim coulter G, which may be attached
to the main coulter F, though we prefer to adjustably mount it to the main beam
or upright support as shown; the said skim coulter G being so shaped and mounted
as to push the dung in towards the furrow.

page_text: Having now particularly described and ascertained the nature of said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
1st. The combination with a plough of a series of revolving or rotating arms A,
substantially as and for the purposes hereinbefore described and shown in the
annexed drawings.
2. The general arrangement and combination of the various parts constituting
our plough coulter clearing and dung spreading appliance, all substantially as, and
for the purposes hereinbefore described and shown in the annexed drawings.
Dated this 12th of August 1892.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicants' Agents.