Improvements in Ploughs.
Year: 1892

page_text: Date of Application, 26th Nov., 1892
Complete Specification Left, 26th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Ploughs.
I, CARL KOHLERT, of 66-71 Weidenweg, Berlin, Germany, Engineer and
Director, do hereby declare the nature of this invention to be as follows:-
Ploughs as heretofore made have been open to objection by reason of their not
being provided with simple means to enable the wheels to be easily adjusted into and
out of position for first-ploughing, and for ploughing to different depths as from
time to time required.
Now my invention has for object to provide a plough that shall comply with this
requirement and according thereto an arm on the furrow wheel axle is connected with
an adjusting lever by means of two jointed rods the said arm being caused, when the
plough is in use, to abut against a rotatable eccentric stop provided on the plough
frame, which when placed in one position retains the furrow wheel at the depth of
the sole of the plough but which when placed in the opposite position allows a further
raising of the furrow wheel.
The bending of the two rods can be prevented according to one construction by
means of a guide shoe in which the joint moves and which has a withdrawable stop-
pin that can be pushed back when the parts are adjusted for ploughing, so as to allow
the rods to bend upon the above mentioned arm striking against the stop. According
to a modification this bending may be prevented by arranging on the frame at a
certain inclination a guide rod for the joint which can be set at a greater inclination
to allow of the bending requisite for ploughing.
The front furrow wheel is by a single adjusting lever set forwards or backwards
by means of the two jointed rods connected to an arm upon the cranked axle of
the furrow wheel the land wheel being at the same time set backwards or forwards
by means of a single rod connected to an arm, upon the axle portion of which the
land wheel is connected and which is rotatably mounted on the extension of the axle
of the furrow wheel. The short arm of the adjusting lever is so connected to the
axle stem of a rear furrow wheel that the adjustment thereof is effected simultaneously
with the adjustment of the front furrow and land wheel.
In both modifications by adjusting the rotatable eccentric stop arranged on the
plough frame the wheels are brought into the proper positions in relation to the sole
of the plough. For first ploughing, the stop turned into such a position that it
causes the arm connected to the front furrow wheel axle to strike against the stop
at a later period, so as to effect a higher position of the furrow wheel than would be
the case if the position of the stop were reversed, as it is for ploughing, in which
case the earlier arresting of the furrow wheel necessitates a corresponding shortening
of the rods which is permitted by the rods being jointed together by means of a bolt
so that they can bend upwards (or it may be downwards) when the arm strikes
against the stop. The guide shoe is fixed to the plough frame formed with an
under-cut groove in which the head of the bolt connecting the two rods slides,
when the plough is being adjusted for transport or is first ploughing. The
withdrawable stop-pin when inserted over the rearmost rod limits the bending
of the rods when the plough is being adjusted for first-ploughing but which when
withdrawn renders the rods free to bend when the plough is being adjusted for
ploughing.
This guide rod is pivoted to the plough frame and passes through an eye formed
on the bolt connecting the rods said guide rod being capable of being set so as to
keep the two rods extended when first ploughing but is capable of being set at a
greater inclination for ploughing so as to allow of the bending of said rods which is
then necessary. For setting the front end of the guide rod higher or lower there

page_text: is attached to the forward end of the same, a bar having two slots contracted at
their upper parts one or the other of which is pushed over a knob or button
located on the plough frame according to the inclination it is desired to give the
guide bar. When it is not desired to first plough with the plough, the stop is fixed,
the pin on the guide-shoe is dispensed with, or the guide rod is immovable.
Dated this 26th day of November 1892.
C. KOHLEKT,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improvements in Ploughs.
I, CARL KOHLERT, of 66-71 Weidenweg, Berlin, Germany, Engineer and
Director, do hereby declare the nature of the said invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement :-
Ploughs as heretofore constructed have been open to objection by reason of their
not being provided with simple means to enable the wheels to be easily adjusted.
into and out of position for first-ploughing, and for ploughing to different depths, as
from time to time required.
Now my invention has for object to provide a plough that shall comply with this
requirement. For this purpose an arm on the furrow wheel axle is connected with
an adjusting lever by means of two jointed rods, the said arm being caused, when the
plough is in use, to abut against a rotatable eccentric stop provided on the plough
frame, and which, when placed in one position, retains the furrow wheel at the depth
of the sole or bottom of the plough, but which, when placed in the opposite position,
allows of a further raising of the furrow wheel.
The bending of the two rods can be prevented according to one construction, by
means of a guide shoe in which the joint moves, and which has a withdrawable stop-
pin that can be pushed back when the parts are to be adjusted for ploughing, so as
to allow of the rods bending when the above mentioned arm strikes against the
stop. According to a modification this bending may be prevented by arranging
on the frame, at a certain inclination, a guide rod for the joint, but which rod
can be set at a greater inclination to allow of the bending requisite for ploughing.
Fig. 1 of the accompanying drawings illustrates a side elevation of the first
mentioned arrangement of plough in full lines for transport; in thick lines for first-
ploughing and in dotted lines for ploughing.
;
Fig. 2 shews the same of the plough adjusted for first-ploughing, and
Fig. 3 for ploughing.
Fig. 4 is a side elevation illustrating the secondly mentioned arrangement in full
lines for transport; in thick full lines for first-ploughing, and in thick dotted lines
for ploughing.
Fig. 5 shows the parts of such plough adjusted for first-ploughing; and
Fig. 6 for ploughing.
Figs. 2 and 6 show details of Figs. 2 and 6 respectively.
Fig. 7 is a part front elevation; and
Fig. 8 a plan of the secondly mentioned arrangement with the adjusting lever
turned down for transport.
The front furrow wheel R in each arrangement, is by a single adjusting lever C,
set forwards or backwards by means of the two jointed rods b connected to an
arm a upon the cranked axle A, the land wheel R¹ being at the same time set
backwards or forwards by means of a single rod 6' connected to an arm a' upon the
axle portion A' to which the land wheel is connected, and which is rotatably mounted
on an extension of the axle A. The shorter arm of the adjusting lever C is connected
by means of a rod 62 and arm a² to the axle stem of a rear furrow wheel R2, so that

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page_text: the bending of the said jointed rods and when adjusted into another position will
permit the bending of said jointed rods to take place and thus enable the plough to
be set for ploughing substantially as described and shown.
Dated this 26th day of August 1893.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.