Year: 1899

page_text: We, ROBERT HENRY FOWLER and THOMAS BENSTEAD, both of the Steam Plough
Works, Leeds, in the County of York, Engineers, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in the ploughs described in the
Specification of the Patent granted to David Greig and Thomas Benstead
No. 3861 of 1886.
According to that specification the frames of balance ploughs were so con-
structed that a greater weight was brought to bear upon the ploughs at work,
to ensure their adhering more regularly to their work and to give an even sur-
face to the bottom of the furrow.
Experience in working these ploughs has led to certain modifications, result-
ing in the improved anti balance gear forming the subject of the present
invention.
In one arrangement the toothed rack, sleeve and pinions are still used pre-
cisely as described in the former specification, but the chains and drum are dis-
pensed with (as chains coiling around the drum are subject to stretching and
breaking) and in their places we use adjustable draft rods or couplings, the
outer ends of which are attached to the main frame of the plough
and the
and pins to
inner ends by shackles
the ends of two
of the four arms of a double forked lever free to rotate on the sleeve, the
movement being about half a revolution. This movement is controlled by the
pull of the hauling ropes, which are coupled to the other two arms of the lever.
To facilitate the moving of the double forked lever on the sleeve (to regulate the
draft to land) collars with set screws are provided at each side of the lever.
This arrangement gives the same travel of the central axis as in the original
specification.
In another arrangement in which also the anti-balance gear is automatic and
is controlled entirely by the pull of the hauling ropes as in the former specifica-
tion, instead of the sleeve, toothed pinions, racks and chains and drum of the
former specification, we use a plain inclined bracket, fixed in the centre of the
plough frame, in which move plain rollers or runners, the movement being still
controlled by the pull of the ropes. This arrangement obviates the friction
caused by the toothed racks and pinions. To keep the rollers at right angles to
the main frame their shaft works in rolling bearings and forms the common
base of a double triangular draw frame. The sides of this triangular draw frame
are prolonged parallel to each other beyond the apices and form guides for guide
rollers, free to revolve on studs carried between the draft plates, which are
part of the main frame and these plates take the ultimate draft of the implement.
In the draft plates we provide holes at various distances apart into which the
studs are placed and the travel of the shaft may thus be easily regulated by

page_text: moving the stud into any of the holes so as to adjust the amount of over-balance
in weight put on the ploughs in work to suit the land being ploughed. The
hauling ropes are coupled to the shaft by means of shackles and clip brackets
and these clip brackets may be moved sideways on the shaft to regulate the
draft to land, being secured by ordinary bolts. When the pulling rope is in
action the shaft moves forward until the end of the double triangular draw frame
engages with the stud and roller. This roller minimises friction and the stud
transmits the pull through the draft plates direct on to the frame of the plough.
Dated this 1st day of March 1899.
R. H. FOWLER.
THOMAS BENSTEAD.
Improvements in Balance Ploughs.
We, ROBERT HENRY FOWLER and THOMAS BENSTEAD, both of the Steam Plough
Works, Leeds, in the County of York, Engineers, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement:-
This invention relates to improvements in the ploughs described in the
Specification of the Patent granted to David Greig and Thomas Benstead
No. 3861 of 1886.
According to that specification the frames of balance ploughs were so con-
structed that a greater weight was brought to bear upon the ploughs at work,
to ensure their adhering more regularly to their work, and to give an even sur-
face to the bottom of the furrow.
Experience in working these ploughs has led to certain modifications, result-
ing in the improved anti-balance gear forming the subject of the present
invention.
In one arrangement shown in side elevation (partly in section), vertical section,
and plan, in Figures 1, and 8, the toothed rack a, sleeve b, and pinions c, are
still used precisely as described in the former specification, but the chains and
drum are dispensed with (as chains coiling around the drum are subject to
stretching and breaking) and in their places we use adjustable draft rods or
couplings, the outer ends of which are attached to the main frame of the
plough at e, and the inner ends by shackles f and pins to the ends of two of
the four arms of a double forked lever g free to rotate on the sleeve b, the
movement being about half a revolution. This movement is controlled by the
pull of the hauling ropes which are coupled to the other two arms of the
lever To facilitate the moving of the double forked lever g on the sleeve b
(to regulate the draft to land) collars with set screws are provided at each side
of the lever. This arrangement gives the same travel of the central axis as
in the original specification.
In another arrangement shown in side elevation (partly in section), vertical
section, and plan, at Figures 4, 5 and 6, in which also the anti-balance gear is
automatic and is controlled entirely by the pull of the hauling ropes as in the
former specification, instead of the sleeve, toothed pinions, racks and chains and
drum of the former specification, we use a plain inclined bracket k, fixed in the
centre of the plough frame, in which move plain rollers or runners 1, the move-
ment being still controlled by the pull of the ropes h. This arrangement obviates
the friction caused by the toothed racks and pinions. To keep the rollers / at
right angles to the main frame their shaft m is connected to and forms the

page_text: common base of a double triangular draw frame n. The sides of this triangular
draw frame are prolonged parallel to each other beyond the apices and form
guides for guide rollers free to revolve on studs carried between the draft
plates, which are part of the main frame and these plates take the ultimate
draft of the implement. In the draft plates p we provide holes at various
distances apart into which the studs are placed and the travel of the shaft may
thus be easily regulated by moving the stud into any of the holes so as to
adjust the amount of over-balance in weight put on the ploughs in work to
suit the land being ploughed. The hauling ropes h are coupled to the shaft by
means of shackles and clip brackets r and these clip brackets may be moved
sideways on the shaft m to regulate the draft to land, being secured by ordinary
bolts. When the pulling rope is in action the shaft m moves forward until
the end of the double triangular draw frame engages with the stud and roller o.
This roller minimises friction, and the stud transmits the pull through the draft
plates p direct on to the frame of the plough.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
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Balance ploughs substantially as described and illustrated in the drawings.
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