Improvements in Gang Ploughs to be Drawn Direct behind a Traction Engine or other Motive Power.
Year: 1889

page_text: Date of Application, 23rd Feb., 1889
Complete Specification Left, 25th Nov., 1889-Accepted, 18th Jan., 1890
Improvements in Gang Ploughs to be Drawn Direct behind a
Traction Engine or other Motive Power.
We, DAVID GREIG Senr. and RICHARD HOLGATE SHAW, Engineers, Steam Plough
Works, Hunslet, Leeds, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in gang ploughs to be worked by direct
traction that is by being attached to and hauled by a traction engine or by other
locomotive power.
The number of skifes or tilling implements required according to the breadth of
land to be tilled are fixed on a suitable frame one somewhat in rear of the other as is
usual. The frame is carried on three wheels-the leading wheel is a furrow and
steering wheel-the second wheel is also a furrow wheel arranged to run on the
bottom of the furrow behind the second or third plough as the case may be and the
third wheel is a land wheel running on unworked land.
The steering furrow wheel is so carried that it can be adjusted to suit the depth of
the furrow and also adjusted when travelling on the road so as to raise the plough
shares clear of the ground.
The second furrow wheel and the land wheel are carried by crank arms extending
from an axle which is mounted in bearings transversely of the frame.
The arm
carrying the second furrow wheel is fixed to the crank axle whilst the arm carrying
the land wheel can turn loosely around it.
In order to be able to lift the ploughs out of work a hand wheel with a toothed
segment upon it is mounted loosely upon the crank axle and by turning this hand
wheel the toothed segment can be brought into gear with a pinion which is fast with
the hub of the land wheel. When the segment is brought into gear with the pinion
the hand wheel turns until a profection upon it comes against a lever stop which at
the time is itself prevented from turning by a tooth or projection upon it bearing
against a segment which projects out from that end of the loose arm above mentioned
which swivels on the crank axle. When the hand wheel and its toothed segment
thus become locked and prevented from turning, the pinion on the hub of the land
wheel rolls around the toothed segment in a downward direction thereby raising the
land side of the frame whilst at the same time the loose arm coming against an arm
which is fixed on the crank axle turns this axle and so forces down the second furrow
wheel and thereby lifts the furrow side of the frame.
When the movement is complete the loose arm has turned far enough around the
crank axle for the segment on this arm to have moved past the tooth on the stop lever
which was previously bearing upon it-the stop lever then drops and brings the tooth
upon it behind the end of the segment and thereby prevents the segment from being
moved back in the opposite direction. The ploughs are in this way held up out of the
ground until the stop lever is again raised.
Dated this 23rd day of February 1889.

page_text: Improvements in Gang Ploughs to be Drawn Direct behind a
Traction Engine or other Motive Power.
We, DAVID GREIG Senr. and RICHARD HOLGATE SHAW, Engineers, Steam Plough
Works, Hunslet, Leeds, 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 improvements in gang ploughs to be worked by direct
traction that is by being attached to and hauled by a traction engine or by other
locomotive power.
Figure 1 is a side elevation of a gang plough constructed in accordance with our
Invention. Figure 2 is a plan of the same and Figure 3 is a rear elevation but
without the ploughing tools.
Figure 4 is an elevation to a larger scale of the land wheel and the gear in
connection therewith for raising the ploughs out of the ground.
Figures 4 and 4b are similar to Figure 4 but show the parts in other positions.
Figure 5 is a plan of the parts shown by Figure 4 and Figure 6 is a rear elevation
partly in section of the parts as shown by Figure 4b.
The number of skifes or tilling implements a a required according to the breadth of
land to be tilled are fixed on a suitable frame b one somewhat in rear of the other as
is usual. The frame b is carried on three wheels-the leading wheel c is a furrow
and steering wheel-the second wheel d is also a furrow wheel arranged to run on
the bottom of the furrow behind the second or third plough as the case may be and
the third wheel e is a land wheel running on unworked land.
The steering furrow wheel c is so carried that it can be adjusted to suit the depth
of the furrow and when travelling on the road keeps the plough shares clear of the
ground. This wheel is mounted on a stud axis which is pivotted vertically and is.
controlled by a steering lever g.
The
The vertical adjustment of the steering furrow wheel is effected by moving the
bracket carrying the axis up or down as required for different depths of work.
bracket fits into a recess in the flange of the frame and is secured by two bolts and a
flat wrought iron strap.
The second furrow wheel d and the land wheel e are carried by crank arms
extending from an axle h which is mounted in bearings transversely of the frame. The
arm h¹ carrying the second furrow wheel is fixed to the crank axle whilst the arm i
carrying the land wheel e can turn loosely around it.
In order to be able to lift the ploughs out of work a hand wheel k with a toothed
segment k¹ upon it is mounted loosely upon the crank axle h and by turning this hand
wheel k the toothed segment k¹ can be brought into gear with a pinion e¹ which is
fast with the hub of the land wheel e. When the segment is brought into gear with
the pinion the hand wheel k turns until a projection k2 upon it comes against a stop 1¹
upon a lever / which is jointed to the frame b and at the time is itself prevented from
turning by a tooth or projection upon it bearing against a segment i¹ which
projects out from the loose arm i above mentioned which swivels on the crank axle h
and carries the wheel e. When the hand wheel k and its toothed segment thus
becomes locked and prevented from turning, the pinion e¹ on the hub of the land
wheel rolls around the toothed segment k¹ thereby raising the land side of the frame b
whilst at the same time the loose arm i coming against an arm h² which is fixed on
the crank axle h turns this axle and so forces down the second furrow wheel and
thereby lifts the furrow side of the frame.
When the movement is complete the loose arm i has turned far enough around the
crank axle for the segment i¹ on this arm to have moved past the tooth 11 on the stop
lever which was previously bearing upon it-the stop lever then drops and brings
the tooth upon it behind the end of the segment i¹ and thereby prevents the segment
from being moved back in the opposite direction. The ploughs are in this way held

page_text: up out of the ground and the hand wheel revolves until it passes out of gear. When
the stop lever is again raised the frame b descends by its own weight until the crank
arms h¹ and i bear upon adjustable screws carried in a bracket from the frame
by which or other similar means the depth of the ploughs may be regulated.
m is the steerman's seat. n is the bracket to which the draft rope or bar is
attached.
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 combination substantially as described consisting of the skifes or tilling
implements a, the frame b; the leading furrow and steering wheel c; the furrow
wheel d following behind one of the forward skifes or implements a; and the land
wheel e; the said wheels d and e being near the middle of the length of the machine
and being capable of being depressed to raise the skifes or implements out of the
ground.
2. The mechanism for raising the frame and lifting the skifes or implements out of
the ground and consisting of the wheel e and pinion e¹ carried by the arm i on the
axis h; and the hand wheel k with teeth k¹ mounted upon the axis h and capable
of being locked fast with the frame when the teeth are in gear. Also in combination
with the same the locking lever / serving both to retain the wheel k until the frame is
raised and also to support the frame in its elevated position. Also in combination
with the same, the arm h² operating in conjunction with the arm i to turn the axis h
and depress the wheel d in relation to the frame.
3. The mechanism substantially as described for raising the skifes or implements
out of the ground.
1000