Improvements in Cultivators.
Year: 1897

page_text: Date of Application, Apr.,
47L
4002
Complete Specification Left, 15th Jan., 1898-Accepted, 2nd Apr., 1898
Date privation
Complete Specification Left, 15th Jan., 1898-Accepted, 2nd Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in Cultivators.
We, JAMES EDWARD RANSOME and FREDERIC WILLIAM GARRARD, both of
Orwell Works, Ipswich, in the County of Suffolk, Engineers, do hereby declare
the nature of this invention to be as follows:-
This invention relates to cultivators arranged with one rigid frame and one
moveable frame the latter carrying the tines and being raised or lowered by a
nand lever whilst kept parallel to the rigid frame by a series of parallel levers.
On such a movable frame we mount two or more transverse bars at equal
distances in front of and behind the axle. Solid tines or spring tines are carried
on these transverse bars and can preferably be moved to and fro along them to
adjust their distances from the sides of the machine.
A
By pivotting the bars to the frame or to brackets on it by turning the bars all
the tines on them may have their pitch altered at one and the same time.
spring is in some cases attached to this adjustable arrangement, so as to allow the
tines to play backwards when meeting with any undue obstacle. In this case stops
are used to limit the range for the play of the spring.
By having the transverse bars placed more or less equally before and behind
the axle the cultivator is not affected in moving over ridge and furrow or unlevel
ground but the tines keep practically an equal depth in work.
In cultivators intended chiefly for narrow work, or for level land, it is not
necessary to make them with sectional frames as has recently been done, but the
tines may be carried on one frame and rise and fall together.
Dated this 15th day of April 1897.
J. E. RANSOME,
FREDC. W. GARRARD.
We, JAMES EDWARD RANSOME and FREDERIC WILLIAM GARRARD, both of
Orwell Works, Ipswich, in the County of Suffolk, Engineers, 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 cultivators arranged with one rigid frame and one
moveable frame the latter carrying the tines and being raised or lowered by a
hand lever whilst kept parallel to the rigid frame by a series of parallel levers.
On such a moveable frame we mount two or more transverse bars at equal
PR77

page_text: distances in front of and behind the axle. Solid tines or spring tines are carried
on these transverse bars and can preferably be moved to and fro along them to
adjust their distances from the sides of the machine.
By pivotting the bars to the frame or to brackets on it by turning the bars all
the tines on them may have their pitch altered at one and the same time. A
spring is in some cases attached to this adjustable arrangement, so as to allow the
tines to play backwards when meeting with any undue obstacle. In this case stops
are used to limit the range for the play of the spring.
By having the transverse bars placed more or less equally before and behind
the axle the cultivator is not affected in moving over ridge and furrow or unlevel 1
ground but the lines keep practically an equal depth in work.
In cultivators intended chiefly for narrow work, or for level land, it is not
necessary to make them with sectional frames as has recently been done, but the
tines may be carried on one frame and rise and fall together.
way
The in which this invention is carried into effect is shown by the accompany-
ing drawings.
On Sheet 1, Figures 1 and 2, we show a plan and side elevation of a cultivator
with one rigid frame a and one moveable frame b. The moveable frame bis
carried by four parallel levers cccc; the two front levers c c are pivotted to the
rigid frame a but the two back levers are attached to a cross shaft f, the latter
turning in the rigid frame a; on this cross shaft f is also fixed the hand lever g
for raising and lowering the moveable frame b. On the moveable frame bare
mounted transverse bars d d; these bars carry the tines e e, the latter being adjust-
able sideways on these bars d d.
For the sake of extra strength and without increasing the weight these bars
are made of tubular steel of rectangular section.
The sides of the moveable frame b can be extended as shown on the drawing to
allow tines el e¹ to be fixed direct behind the road wheels.
The road wheels h h are also adjustable sideways on their respective bushes jj;
the latter revolve on the axle arms kk. These axle arms k k are fixed to the rigid
frame a.
This cultivator is operated by the hand lever ; by moving this lever as shown
by dotted lines Figure 2 the moveable frame b is lowered parallel to the rigid
frame a and forces the tines into the ground all to an equal depth.
Figures 3 and 4, Sheet 2, show the plan and side elevation of a similar cultivator
with one rigid frame a and one moveable frame b. The difference between this
arrangement and the arrangement shown by Figures 1 and 2 is that the moveable
frame is placed above instead of below the rigid frame.
This implement has a through axle across the frame having the axle arms k k at
each end. On this axle are fixed the two hind levers c c supporting the moveable
frame 6 (the front pair of levers ce being carried as described in Figures 1 and 2)
and also the hand fever g which operates the levers c c c c and so raises and lowers
the moveable frame 6 parallel to the rigid frame a.
In order to allow of the same size of tines being used as are used in the cultivator
shown in Figures 1 and 2 but retaining the same diameter of road wheels, the
transverse bars d d are carried below the frame b on brackets 1111 fixed or pivotted
on it.
All the Figures 5, 6, 7, 8 and 9, Sheet 3, show arrangements for altering the pitch
of the tines, and Figures 6, 8 and 9 for introducing springs to allow the tines to
play backwards when meeting with any undue obstacle.
Figures 10 and 11 show the clips for securing the tines to the bars d to a larger
scale but no claim is made to these fastenings which are described in the Specifica-
tion of Patent No. 4513 of 1896.
Figures 5 and 6 are adapted for cultivators shown in Figures 1 and 2. Figures 7,
8 and 9 for cultivators shown in Figures 3 and 4.
In Figures 5 to 8 the levers o for pitching the tines are fixed to the transverse
bars d these bars d being allowed to revolve in the moveable frame b or bracket /

page_text: as the case may be. The levers o in Figures 5 and 7 are adjusted by the holes
(or slots) n and kept in position by a bolt or pin p.
In Figures 6 and 8 an adjustable screwed rod r and a springs are employed to
allow the tines to play backwards.
In Figure 9 the transverse bar d does not turn in the bracket but the bracket
itself is pivotted at one end m to the moveable frame b and is either held by a
bolt P
and adjustable slot at its other end to the frame or is connected with it by
a spring s as shown.
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:-
-
1. Carrying the tines of a cultivator on single transverse bars supported only
at each end on a moveable frame substantially as described.
2. Attaching the tines of a cultivator having a moveable frame so that they
can be placed in any position on the transverse bars substantially as described.
3. Placing transverse bars for carrying the tines of a cultivator with a moveable
frame in equal numbers in front of and behind the axle substantially as described.
4. A cultivator with an adjustable moveable frame carried on a fixed frame
substantially as described.
5. The combination with machines made in accordance with the preceding claims
of extra adjustable tines behind the wheels carried on continuations of the moveable
frame substantially as described.
G. Arrangements for altering the pitch of tines and applying springs substan-
tially as described.
7. Cultivators substantially as described and shown on Sheets 1 and 2 of the
drawings.
nated this 13th day of January 1898.
J. E. RANSOME.
F. W. GARRARD.