An Improved Device for Attaching a Reversible Share-plate to the Foot of a Plough, Scarifler, or other Implement.
Year: 1892

page_text: Date of Application, 10th May, 1892-Accepted, 11th June, 1892
COMPLETE SPECIFICATION.
An Improved Device for Attaching a Reversible Share-plate to the
Foot of a Plough, Scarifler, or other Implement.
We, JAMES GILBERT of Crystal Brook in the Province of South Australia,
Machinist, and HENRY ALLSOP BEGG of Albert Street, Semaphore, in the
Province of South Australia, Commercial Traveller, 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 is an improved method and appliances for enabling a plough or scarifier
share or share-plate to be attached, detached, or reversed and it applies to those
kinds of shares which are flat on both the upper and lower sides or faces. The
construction of the share-plate and the method of attachment differ from anything
which so far as we are aware has ever been adopted before. The foot of the
plough, scarifier or other implement may be various, such as many of those now
in use, on ploughs and similar implements no alteration or adaptations of the foot
being required in order to use our device, which specially applies to plough feet
made in the English style. A share and socket made according to our invention
are in two pieces. The share is flat and has an open space of suitable shape in
the centre or other position. Into this fits an arch shaped clamp or loop of
wrought metal with flanges at its ends which forms the socket to receive the foot
of the plough or implement.
In order that our invention may be clearly understood we will now describe the
same by reference to the accompanying drawings, in which
Fig. 1 is a plan, and
Fig. 2 a side elevation from the land side of a plough foot, fitted with one of
our shares and socket loop.
Fig. 3 is a section on line x-y Fig. 1.
Fig. 4 is an isometrical view of a scarifier share fitted upon an ordinary scarifier
foot.
Fig. 5 is a section shewing the foot, share, and socket loop.
Fig. 6 is a view of the socket loop detached.
Referring to Figs. 1, 2 and 3. A is a share or share-plate constructed of steel
or other metal. B is a socket loop of the shape shewn. It is inserted through
the aperture indicated by lines a b c d in Fig. 1, and when the flanges B¹ B*
impinge against the share-plate a socket is formed of the proper size and shape
to receive and fit the plough foot C. A pin hole is drilled or formed through
which the pin D is passed and assists in holding the parts together, although as in
other plough shares, this pin is not essential and is sometimes dispensed with.
The shape of the aperture in the share and of the socket loop may be altered and
varied to suit the several kinds of plough feet. The shape illustrated in the
drawings is that of a P plough. The fastening of the share to the foot is secured
by the clamp or loop B which has flanges at its upper ends. This clamp or loop
is passed partially through the aperture in the plate downwards and is prevented
from passing right through and secured in its proper position by the said flanges
impinging upon the face of the share. The foot is then passed through the socket
on the opposite side to the flanges and the whole forms a secure implement ready
for ploughing. To reverse the share the pin D if used is. knocked out, the socket
loop B removed, the share A turned over so that the wing becomes the point, the
socket B repassed through the opening and the foot of the plough inserted as
before.
In scarifier shares as illustrated in Figs. 4, 5, and 6 the shape of the clamp F is
different so as to form a socket suitable for the foot G of a scarifier. In this

page_text: case the clamp F is passed through the aperture upwards the flanges F'F'
impinging from below against the bottom face of the scarifier share H. The
fixture may be additionally secured if preferred by the pin K passing through the
holes provided for the purpose in the clamp F and the foot G. The reversal is
performed by loosening the pin, if used, removing the clamp or loop F, turning
over the share and re-inserting the clamp as in the case of the plough share.
In Figs. 7, 8 and we have shewn an alternative way of forming a socket for
scarifier shares.
Fig. 7 is a plan of share-plate only.
Fig. 8 is a side view of the share-plate, socket, and scarifier foot.
Fig. 9 is a section of the share-plate, socket, and scarifier foot.
In this case the socket loop M consists of a complete band which passes through
two slots N' N' in the share-plate P. The loop M after being put into the plate
and bent round the bridge Q may be formed into a solid band by welding, rivetting,
or other means, or it may simply be bent into the required shape with the ends
butting together. The scarifier foot is inserted in the loop and pressed in until
the bottom of the loop is drawn up to the bridge Q when the share-plate will be
securely attached to the foot. In order to turn the share-plate over, the share and
loop are knocked off the foot and turned upside down and the loop pushed through
the slots N N until the part of the loop that was previously the top bears
against the bridge piece Q and the scarifier foot being inserted the share is again
ready for work. A pin may be put through the socket and foot in the ordinary
way if desired. .
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is;-
1. The separate socket loop or clamp of shape to fit the foot of a plough,
scarifier or other agricultural implement, and fitting through an opening made in
the share or share-plate for such purpose, and secured by Hanges, substantially as
described and illustrated.
2. The separate socket loop or clamp of shape to fit the foot of a scarifier or
other similar agricultural implement the socket loop forming a complete band
encircling the foot of the implement and the bridge piece in the share, substan-
tially as described and illustrated more particularly in Figures 7, 8, and 9.
3. In ploughs, scarifiers, and similar agricultural implements the formation of a
share or share-plate with a hole or opening made or left therein for a socket loop
or clamp with flanges to pass through or partially through, substantially as
described and illustrated.
4. The method of attaching a share or share-plate to the foot of a plough,
scarifier or other similar agricultural implement by inserting the foot of the
plough or implement into a clamp or loop which is supported in its position by lugs
or flanges pressing upon the share plate thus forming a socket and holding the
share-plate securely to the foot, substantially in the manner described.
Dated this Thirtieth day of March 1892.
JAMES GILBERT.
HENRY ALLSOP BEGG.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicants.