A Rotary Plough.
Year: 1891

page_text: Date of Application, 15th Dec., 1891-Accepted, 27th Feb., 1892
COMPLETE SPECIFICATION.
A Rotary Plough.
I, WASILI PICHINO of the Corner House Kusucznaja and Kosowajewskaja
Streets, Kieff in the Empire of Russia, Law Student, 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 comprises a plough in which the share has the form of a dish on
edge and which ploughs in a rolling manner as spades provided in the circumference
cut into the soil and sever and lay down a strip of same. The strip of earth glides
up the hollow surface of the dish shaped plough share and as the latter continues
to roll the strip is directed sideways towards the last made furrow and turned over
because the vertical plane of the share does not coincide with the direction of the
furrow but cuts it at an angle which is adjustable according as the degree of
diversion of the strip is to be greater or smaller.
In the accompanying drawing I have shewn such a spade plough, Figure 1
being a side view Figure 2 a plan and Figure 3 a vertical longitudinal section.
Figures 4, 5 and 6 are respectively enlarged horizontal section, plan and end view
of the plough share.
The beam a to the upper side of which the wheel axle d with the two wheels b
and c is fixed carries underneath it a plate g fixed thereto by two screw bolts e. f.
In this plate the axle of the plough share has its bearings. The bolt passes
through a curved slot which is struck with a radius from e. When the nuts of
both bolts are loosened the plate y can be shifted round the bolt e and therewith
the axle of the share / so as to give the latter any required angular position
according to the draught power available.
The share has spades m fixed equidistantly along the concave outer circumference
and is by means of a rigid flange boss n fixed to the axle & which runs in bearings p
on the plate g. The bearings are inserted into slots from above and united to
the plate y by screw bolts.
is a tool box which may be fixed to the beam behind the share and also serve
as the seat for the driver.
The plough share may be set for different depths of soil and be raised clear of
the ground when not in use. This is effected by means of the staple which is
fixed to the side of the beam a and in which the pole or shaft can be placed high
or low and according to the depth of entry of the share into the soil.
For using the share the axle of same must have such an angle to the road wheel
axle that the front spade lying in the horizontal middle plane of the share is about
parallel with the direction of motion of the plough. By moving the plough
forward the spades enter the soil to the furrow depth for which the share has
previously been adjusted in accordance with the weight of the implement and of
the driver. The strips, separated by the spades, rise in consequence of the angular
position of the share up against its hollow surface, become crumbled up and mixed
by the continued rotation of the share and when come to a certain height turn over
to one side.
The first furrow having been made the furrow wheel c which has a larger
diameter than the wheel because of the depth of the furrow enters the said first
furrow while the share acts in the manner described and turns over the strip into
that furrow.
In order to prevent the plough from sliding when ploughing along a slope the
furrow wheelc may advantageously be provided, with pegs or spikes on the
circumference as shewn.
The normal furrow width for this plough may be about 10 or 11 inches. The

page_text: depth of furrow (when using a share having a diameter of 25 or 26 inches) may
be suitably adjusted to from 5 to 12 inches. The plough may for various soils and
a width and depth of furrow of 10 or 11 inches be worked by two horses.
As the share has a rolling action the friction is much reduced as compared with
that in the ordinary ploughs and hence also the wear and tear and draught power.
The plough may be made with one or more shares.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manuer the same is to be performed I declare that what I
claim is.
First. A spade plough the share of which consists of a dish shaped body / ou
edge provided on its circumference with spades m and having a rolling ploughing
action by reason of the horizontal diameter of the dish opening cutting the direction
of the furrow at an angle so that by the rolling of the share and the entry of the
spades in the soil the separated strips rise up along the hollow surface of the dish
and are then diverted towards the previously made furrow and turned over,
substantially as set forth.
Second. The construction of spade plough shown on the drawing.
Dated this 15th day of Decamshon 1000
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.