Year: 1886

page_text: Date of Application, 12th May, 1886.
Complete Left, 12th Feb., 1887.
Complete Accepted, 15th Mar., 1887.
I, WILLIAM DEWAR of Strathmartine in the County of Forfar N.B. Implement
Maker do hereby declare the nature of this invention to be as follows :—
My said Invention consists of the Improvements hereinafter described by which
heavy and clay lands are pulverized and rendered much more serviceable and fruitful
than hitherto.
My said Invention (which may be termed a Pulverizing Plough) is made with three
or more Coulters for cutting the furrow slice in a perpendicular or downward direction,
with three or more steel plates attached, to operate on the portion of the furrow while
being turned or removed to the side: the above mentioned plates being twisted in a
screw shape.
What I consider the novelty connected with my Invention is the above number of
three or more coulters being attached to one single Plough for cutting and breaking
up Furrow slice.
And the three or more twisted or screw shaped plates attached to sheath for breaking
and pulverizing portions of Furrow.
And a simple arrangement being attached to standard of side wheel for guiding the
Implement The wheel being placed at a convenient distance to the one side to allow
the Implement to cut up size of furrow the same attachment being a lever sett in a
forward direction with stud or bolt which passes through a double fork or straight
piece of iron-The said fork or piece of iron to have a number of holes into it same as
front portion of Plough-The draw bar being attached to front of plough passes
through the above fork and a pin or bolt being put into any of the holes and through
the draw bar at any desired distance from side or guiding wheel determines the
forward movements of the Plough to the action of the horses either in a straight or
curved direction.
WILLIAM DEWAR.

page_text: Improvements in Pulverizing Ploughs.
I, WILLIAM DEWAR of Strathmartine near Dundee, in the County of Forfar, N.B.
Implement Maker, 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 relates to improvements in ploughs and it has for its object to
pulverize heavy and clay lands and render them much more serviceable and fruitful
than when ploughed with the implements ordinarily in use.
The improved plough constituting the invention is illustrated in side elevation at
figure 1 and in plan at figure 2 of the drawings annexed and as shewn thereby it
consists of a framing a extending from one side to the other of which is another
framing having a series of vertical slots or openings in it through which pass a
series of vertical coulters c these cutting and breaking up the furrow slice in a
perpendicular direction. The vertical adjustment of these coulters is effected by
pinching screws d, (figure 2) or by equivalent means. To the sheath e of the
horizontal coulter of the plough there is attached two or more steel or other metal
plates which have a twisted or screw blade formation, and which as the furrow is
being turned or removed act so as to break up and pulverize the soil.
The side or furrow wheel g, for guiding the implement is centred on a vertical bar
or standard carried in a bracket secured to and projecting from one side of the
forward part of the frame a to a convenient distance to enable the plough to cut up
the requisite size of furrow. In conjunction with the standard h there is provided an
apparatus for guiding the implement and which consists of a lever j, attached at one
end to the standard and at its other end by a pin or stud to a cross bar or fork,
which has a series of holes in it corresponding in number to a series made in the
front bar m, of the plough frame.
The draw bar n, is attached to the front bar m, by a pin passed through one or other
of the holes in the front bar and by connecting the drawbar to the cross bar or fork k,
by another pin passed therethrough the draw bar and through one of the holes in the
cross bar, at any desired distance from the guiding wheel g, the direction of motion of
the plough relatively to the traction of the horses is determined.
Having now particularly described, and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :--
1. The arrangement and combination of parts constituting the plough, hereinbefore
described with reference to the accompanying drawings.

page_text: 2. In a plough the combination of a series of vertical coulters for cutting and
breaking up the furrow slice, with two or more screw shaped plates for breaking
and pulverizing the soil turned up, substantially as described with reference to the
appended drawings.
3. In a plough the combination of apparatus consisting of the front bar m, cross
bar or fork, lever j and draw bar n, operating to guide the direction of forward
motion of the implement relative to the traction of the horses, substantially as described
with reference to the appended drawings.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.