Improvements in Devices Connected with Ploughs.
Year: 1887

page_text: Date of Application, 27th Jan., 1887
Complete Left, 21st Oct., 1887
Complete Accepted, 22nd Nov, 1887
PROVISIONAL SPECIFICATION.
Improvements in Devices Connected with Ploughs.
1, THOMAS SCOTT, of South Woodend, Bonnybridge, in the county of Stirling,
American Plough Importer, do hereby declare the nature of my invention to be as
follows:-
This invention comprises a new or improved construction of coulter for ploughs and
its fittings suitable for being used, as the ordinary "jointers," for turning over the top
grass or surface of the soil as it is cut by the coulter, and which has many advantages
over coulters and jointers as heretofore constructed.
The nature and novelty of this invention consist all as follows: In making the
coulter in two parts, the upper part with an angled flat stem and a part kneed forward
horizontally below in line with the top of the angled sharp cutting coulter blade, for
coupling to a corresponding kneed part on the upper end of the coulter blade by a
centre transverse swivelling joint bolt. These two joint parts are coupled by toothed
segments concentric to the joint pin, so that the cutting blade of the coulter can be
set and secured with its point at any required angle forwards and downwards towards
the sharp cutting point of the share. The upper stem part is bolted to the angled
bracket secured to, and projecting outwards and downwards from the standard frame
and beam of the plough, by slotted holes, so as to set the coulter to any height
desired. The coulter is made of cast steel and formed with a thin blade sharpened on
the front angled edge, and with a curved wing receding out at its upper part,
gradually tapered or angled away to nothing towards the lower sharp edge; this
wing part turns the upper surface or grass of the soil cut by it, quite over and under
towards and in advance of the furrow and mould-board, which thus throws the mass
of the soil over it. The upper stem part of the coulter has also two screw pins fitted
in it at the top and two at the root or bottom, the points of which act on the
retaining flange of its bracket or "jointer" holder, so that by these screw pins the
coulter inay be set at any slight angle laterally or longitudinally to set it in the best
acting position in front of the cutting edge of the point and share, and in line with
the plough and work.
This improved shifting long sharp coulter may be fitted and secured to the ordinary
"jointers" of ploughs in substitution for their present sharp points, either with or
without the lateral wing at top, for which the wing of the "jointer " may be made
to act.
1987

page_text: COMPLETE SPECIFICATION.
Improvements in Devices Connected with Ploughs.
L, THOMAS SCOTT, of South Woodend, Bonnybridge, in the County of Stirling,
American Plough Importer, do hereby declare the nature of my invention and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement in writing, reference being had to the accom-
panying Sheet of Drawings, and to the letters and figures marked thereon, that is
to say :-
My invention comprises a new or improved construction of coulter for ploughs and
its fittings suitable for being used, as the ordinary "jointers" for turning over the
top grass or surface of the soil as it is cut by the coulter, and which has many
advantages over coulters and jointers as heretofore constructed.
And in order that my said invention and the manner of performing or carrying the
same into effect or practice may be properly understood, I have hereunto appended an
explanatory Sheet of Drawings, in which the same reference letters are used to
indicate corresponding parts in all the figures where shown. Figure 1 is an elevation
of an American wooden beamed plough, having fitted thereto my new or improved
construction of coulter A A¹. Figure 2 is an elevation (broken away) of the middle
or plough-share part of a plough, showing fitted thereto à modified construction of my
improved coulter A A¹ from that shown in Figure 1. Figures 3 and 4 are an
elevation and plan respectively to an enlarged scale of the lower part A¹ of the coulter
shown in Figure 1, only looking from the opposite side of it. While Figures 5 and 6
are corresponding views of the arrangement of coulter shown in Figure 2.
a
Referring to Figures 1, 3 and 4 of these Drawings:-The nature and novelty of
this invention consist all as follows, in making the coulter in two parts A A¹, the
upper part A with an angled flat stem and a part kneed forward at A² horizontally
below in line with the top of the angled sharp cutting coulter blade, for coupling to a
corresponding kneed part at A" on the upper end of the coulter blade A' by a centre
transverse swivelling joint bolt a. These two joint parts A2 A" are coupled by
toothed segments a concentric to the joint pin a, so that the cutting blade A¹ of the
coulter can be set or adjusted and secured with its point at any required angle
forwards and downwards towards the sharp cutting point of the share or sock C
according to the nature of the soil or subsoil to be operated on. The upper stem
part A is bolted to the angled bracket B, secured to, and projecting outwards and
downwards from the standard frame and beam B³ of the plough, by slotted holes b, so
as to set the coulter to any height desired. The coulter A A¹ is made of cast steel
and formed as a thin blade a sharpened on the front angled edge, and with a curved
jointer wing or "skim" a³ cast on shown particularly in Figures 3 and 4. and
receding out at its upper part, gradually tapered or angled away to nothing towards
the lower sharp edge; this wing part a³ cuts the corner of the furrow, so that when
turned over no grass is seen as it is turned quite over and under towards and in
advance of the furrow and mould-board C, which thus throws the mass of the soil

page_text: over it. The upper stem part A A2 of the coulter has also two screw pins 6' fitted in
it at the top and two bat the root or bottom, the points of which act on the retaining
flange of its bracket or "jointer" holder B, so that by these screw pins 6 62 the
coulter A A' may be set at any slight angle or adjusted laterally or longitudinally and
vertically, to set it in the best acting position in front of the cutting edge of the point
and share C, and in line with the plough and work. In the arrangement of my
improved coulter shown in Figures 2, 5, and 6, the two parts A A' are made nearly
straight and jointed by the toothed couplings a', and swivelling bolt a, in line, and
the wing or "skim" a³ is shown as bolted on, instead of being cast as in the arrange-
ment of kneed or angled coulter shown in Figures 1, 3 and 4, and the plough-share C
is shorter than in the latter arrangement.
This improved shifting long sharp coulter A. A' may be fitted and secured to the
ordinary jointers" of ploughs in substitution for their present sharp points, either
with or without the lateral wing or "skim" a³ at top, for which the wing of the
"jointer "may be made to act.
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
First. The construction or arrangement and combination of coulters and their ⚫
jointers and fittings for ploughs, all substantially as and for the purposes herein
described, in reference to and shown in the accompanying Drawings.
Second. In ploughs, the construction and use of a coulter made in two parts A A¹
and coupled together by toothed segments a¹, so that the cutting blade of the coulter
with its jointer wing or "skim" a³ can be set and secured with its point at any
required angle forwards and downwards towards the sharp cutting point of the
share C, all substantially as herein described, in reference to and shown in the
accompanying Drawings.
Third. In ploughs, the adjusting of the coulter A A', laterally, longitudinally,
vertically, or at an angle by the pins 662 in the upper stem part A, all substantially
as and for the purposes herein described in reference to and shown in the accom-
panying Drawings.
Fourth. In ploughs, the combination of a jointer wing or "skim" a³ with the
coulter A', all substantially as herein described in reference to and shown in the
accompanying Drawings.
Dated this 21st day of Autobar 1887