Improvements in and connected with Agricultural and Drain Ploughs and Cultivators.
Year: 1891

page_text: Date of Application, 29th Sept., 1891-Accepted, 14th Nov., 1891
CODER DIE DIECIFICATION.
Improvements in and connected with Agricultural and Drain
Ploughs and Cultivators.
I, DAVID EDWARDS of Elizabeth Street Melbourne in the Colony of Victoria,
Engineer, 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 agricultural and drain ploughs, and to cultivators.
According to these improvements, I construct the plough share with a cutting
blade on the land side, upon or in connection with which I arrange form or secure
one or more spurs or wings which are continued or extended over the mould board.
The construction and combination of these is such that the land is more readily
ploughed or cut, whilst all the surface rubbish such as weeds and the like, is caught
by the narrow spurs or wings and laid upon the earth which is afterwards turned
over by the mould board and thus effectively buries the rubbish.
In the case of a cultivator, a single wing or spur may be similarly constructed
and secured upon the tine or each of the tines of the cultivator; whilst in the case
of a drain plough it is an advantage to have a cutting blade upon the furrow side as
well as upon the land side.
By forming a cutting blade upon the plough share, I dispense altogether with
coulters.
In order that my invention may be clearly understood and readily carried into
effect, I will more fully describe it with reference to the accompanying drawings in
which:-
Figure 1 shews in side view, and Figure 2 in plan, the mould board A and
share B of an agricultural plough.
The cutting blade C is formed on the land side of the share. A' is a breast
wing formed or secured upon the land edge of the mould board, and constructed
and arranged in such a manner that it springs from the back end of the cutting
blade, whence it curves over the mould board as represented in the figures.
An upper spur or wing D is secured upon the cutting blade C preferably by
means of a set-screw d having a countersunk head; and a lower spur or wing D¹ is
bolted in a similar manner, or otherwise similarly secured to the breast wing A¹.
Holes may be formed in the cutting blade C and in the breast wing A' for the
purpose of enabling the positions of the spurs or wings D and D' to be adjusted
when required.
Figure 3 shews a cross section at the line a a Figure 1.
°
Figure 4 represents a modification of the arrangement represented by Figures 1
and 2. In this modification, both of the spurs D and D are secured upon the
cutting blade C.
Figure 5 represents in elevation, the construction which I prefer to adopt in
the case of a drain plough. The cutting blade C is continued and curved
backwards as shewn, and has secured upon it the spur or wing D, and in addition,
second cutting blade C on the furrow or off side of the share, so that both sides
of the drain may be cut at once. This double bladed share may either be
constructed from plate steel, and be secured upon the ordinary share by the rivets c c
or it may be formed with a socket to fit the plough foot. It is important that the
cutting blade C' on the furrow side of the plough should be hollow enough to allow
the cut earth to pass over it. The base of this blade starts from the front inclined
cutting edge of the share as indicated.
It is preferred that the cutting blades should be formed upon the plough shares
s shewn by Figures 1 to 4 and that the curve or twist of the spurs or wings which
•

page_text: project backwards from the cutting blade, should resemble that of the mould board.
When it is desired to attach a breast wing such as A' to an ordinary mould board,
I may form a flange on the lower edge of the breast wing, to fit upon the mould
board or foot, and secure it thereto by means of rivets or by bolts or screws with
countersunk heads so that the fastening device is flush with the surface.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is,―
1. A. plough-share having a cutting blade and one or more spurs or wings formed
or secured upon the land side of the share in such a manner that the spurs or wings
project over the mould board; constructed and arranged substantially as herein-
before described and as illustrated by the accompanying drawings.
2. In a cultivator, a tine having a curved or twisted spur or wing formed thereon,
substantially as and for the purpose hereinbefore described.
3. A share for a drain plough, constructed with a cutting blade upon both its
furrow and its land sides, and with a spur or wing upon its land side; substantially
as and for the purpose hereinbefore described and as illustrated by the accom-
panying drawings.
4. A plough mould board having a breast wing such as A' and a spur or
spurs DD' thereon; substantially as and for the purpose hereinbefore described
and as illustrated by the accompanying drawings.
Dated this 28th day of September A.D. 1891.
WILLIAM E. HEYS,
Agent for the Applicant.