IMPROVEMENTS IN PLOUGHS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, ALEXANDER LESLIE of 9 Mincing Lane in the City of London, Merchant
do hereby declare the nature of my Invention for IMPROVEMENTS IN PLOUGHS and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of this Invention is to produce a light and strong plough of simple
construction which will admit of ready transport from one place to another and
also of ready adjustment to suit different depths of ploughing.
The beam of this plough is made tubular of steel or wrought iron, and fitted to
it is a cast iron frame to which is secured by rivets the slade or sole plate, the share
and the breast, such rivets being capable of easy removal when either of the
attached parts requires to be renewed.
In the accompanying Drawing Fig. 1 is a side elevation of the plough complete,
and Fig. 2 is a plan view of the same, Fig. 3 is a partial sectional side elevation
of the plough; Fig. 4 shows the mode of attaching the draught hook to the beam,
and Figs. 5, 6 and 7 are views on an enlarged scale of the frame attached to the
beam in a different position to that shown at Figs. 1 and 3.
A is the tubular beam the rear end of which is bent nearly at right angles
relatively to the forward part of the beam, and forms a stilt for the plough handles.
The bend in the beam takes the form of the segment of a circle, and it is to this
portion of the beam that the cast iron frame B is attached. To fit this tubular
beam, the upper part of the frame is cast with a corresponding curve in which is
formed a longitudinal groove suitably shaped in cross section to receive the tubular
curved beam; C is the slade or sole plate which is secured to the bottom of the
frame by rivets 1, 1.
D is the plough breast made preferably of chilled iron and secured at front to
the plough frame by the rivet 2, and at its rear to the beam A by means of a
tie-rod D¹ and rivet 3. The other end of this tie-rod is secured by a screw bolt of
one of the two clips which attach the frame B to the beam A. This attachment is
made adjustable for the purpose of shifting the position of the plough body on the
beam and thereby altering the angle of inclination or dip of the plough share E.
CD 471

page_text: This share E which is made preferably of steel is cast with a socket to fit onto the
nose of the plough frame and through the socket and nose rivet holes are made to
receive the rivet 4, which serves to hold the share in place.
The frame B is cast with two pairs of lugs one pair at the front and the other
pair at the back of the frame, and secured to these lugs by means of screw bolts
are the clipping pieces b: A cross pin b¹ passed through one of a series of holes
made transversely through the beam serves as a rear abutment for the frame, and
enables it to sustain the pressure put upon the plough while in operation. When
it is desired to shift the frame on its beam for the purpose of adjusting the dip of
the share, the screw, bolts of the clips are to bo slackened and the cross pin
.withdrawn; the beam can then be moved endwise to effect the adjustment desired.
By tightening up the bolts and reinserting the cross pin a firm attachment between
the beam and plough-body will be secured.
The plough handles are carried by a T piece A¹ of tubular metal, one limb of
which fits onto the stilt or bent up end of the beam, and is secured thereto in any
approved manner. The other limbs of the T-piece A¹ form sockets for the handles,
the handle stems being driven or screwed tightly therein. F is the draught hook
secured by a clip attachment to the forward end of the beam, but adjustable
thereon to adapt the plough to draught animals of various heights. This draught
'hook may depend from the beam, or stand up above it, according to the size of
the draught animals, its adjustment being effected by first slackening and
afterwards tightening-up the clamping bolt.
When it is desired to renew the share or to change the breast or the sole plate
of the plough, it will only be necessary to cut off the heads of the rivets 1, 1; 2;
3; or 4; as the case may be and drive out the rivets. The part or parts requiring
to, be replaced or renewed may then be removed and, the plough may then-be
refitted as before.
J'
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
J
1. The construction of plough above described, in which the plough body is
made adjustable on the beam for the purpose of varying the dip of the share to
suit different depths of ploughing.
7
2. The means above described for varying the height of the draught book
relatively to the ground.
3. The construction of curved beam and stilt fitted with a piece as and for
the purpose above set forth.
12
Dated this 26th day of April 1884.