Improvements in and connected with Electrically Propelled Agricultural Implements
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in and connected with Electrically Propelled
Agricultural Implements.”
I, HUGO SCHIMPFF, of 37, Merseburgerstrasse, Halle on the Saale, in the German
Empire, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in and connected with electrically propelled
agricultural implements.
In such agricultural implements as now generally made the stands, which serve to
carry the naked conductors or cables and which are raised by an arm on the
implement when the latter is moved, possess the disadvantage that they swing to a
considerable extent to-and-fro upon the conductors or cables so that the operation of
the implement cannot be sufficiently relied upon.
To obviate this disadvantage the conductors or cables instead of being supported
on separate stands are, according to this invention, supported on the same stands
which are provided with a bottom rail and with a roller in such a manner that when
the implement moves both conductors are simultaneously displaced for a distance
equal to the width of the furrows as the roller permits the necessary lateral movement
and the bottom rail of the stands prevents the backward movement of the stands and
of the conductors into their original position.
The two conductors or cables are carried by a laterally bent arm upon the frame or
support by means of a ball and socket joint and of retaining rails. A horizontal
retaining rail on the arm supporting the stands carries slides which during the
movement of the implement slide under the conductors or cables and thereby raise
the roller frames successively from the ground and replace them thereon.
In carrying my invention into practice I provide the supporting arm of the
agricultural implement (for instance a plough) with two slides, each roller frame
carrying the conductor or cable for conveying the current to the implement, as well
as the cable for the return of the current which passes from the main conductor
through a terminal with an insulated handle to one of the cables or conductors and
returns through the other conductor and a terminal having a handle to the main
conductor.
The slides are suitably widened or tapered both laterally and downwardly from the
middle towards the ends to enable the slides to pass the cable holder which rests upon
the rail of the roller stands without inconvenience.
The retaining rod or rail is suspended to the laterally bent arm of the roller stand
by means of a ball and socket joint whereby the tendency of the frame, when raised
from the ground, to violently oscillate is diminished. The deviation or deflection of
the stand is limited by a wire stop which is secured to the retaining rail and strikes
against cross pieces on the arin of the stand. The stand is provided underneath with

page_text: two arms or legs which are arranged at an angle to one another and one of which
carries the bottom rail and the other the roller.
The roller lessens the resistance against the lateral movement of the two conductors
The bottom rail, on
or cables for the required distance when the plough is moved.
the other hand, prevents the return of the stand and its conductors after lateral
movement.
The two conductors or cables are wound upon drums on a drum trolley at one end
of the field and on a second drum trolley at the other end of the field.
The first drum trolley is provided with an automatic tension device. Each of these
drums is provided with a shaft mounted in insulated bearings and near the drums
are arranged discs around each of which a cord is applied which passes over a roller
and carries at its free end a counterweight.
The second trolley is provided with a tension device consisting of a winch or
windlass by means of which the cable can be stretched.
The advantage of the above described arrangement is that the violent oscillation
of the supporting stands avoided and, that when the agricultural implement is
moved forward, lateral movement of the frame on the cable is permitted.
1
ELL t of tabruary 1807
G. F. REDFERN & Co.,
4, South Street, Finsbury, London. Agents for the Applicant.
"Improvements in and connected with Electrically Propelled
Agricultural Implements."
I, HUGO SCHIMPFF, of 37, Merseburgerstrasse, Hall on the Saale, in the German
Empire, Engineer, 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 and connected with electrically propelled
agricultural implements.
In such agricultural implements as now generally made the stands, which serve to
carry the naked conductors or cables and which are raised by an arm on the imple-
ment when the latter is moved, possess the disadvantage that they swing to a
considerable extent to-and-fro upon the conductors or cables so that the operation of
the implement cannot be sufficiently relied upon.
To obviate this disadvantage the conductors or cables instead of being supported
on separate stands are, according to this invention, supported on the same stands which
are provided with a bottom rail and with a roller in such a manner that when the
implement noves both conductors are simultaneously displaced for a distance equal
to the width of the furrows as the roller permits the necessary lateral movement and
the bottom rail of the stands prevents the backward movement of the stands and of
the conductors into their original position.
The two conductors or cables are carried by a laterally bent arm upon the frame or
A horizontal
stand by means of a ball and socket joint and of a retaining rail.
retaining rail on the arm supporting the stands carries slides which during the move-
inent of the implement slide under the conductors or cables and thereby raise the
roller-frames or stands successively from the ground and replace them thereon.
To enable my invention to be fully understood I will describe it by reference to the
accompanying drawings, in which :-

page_text: Figure 1 is a view itlustrating the posts for carrying the main conductors, the two
drum trolleys whereon the naked conductors are wound and the method of connecting.
the said conductors to the main conductors:
Figure 2 is an end view of an agricultuaal implement (balance plough) with
unnecessary parts not shewn, the implement being illustrated in the position it
assumes when holding the roller-frame or stand suspended:
Figure 3 is a view of the lower part of the arm of the implement with its slides
and the laterally bent arm of the roller-frame or stand with the supports for the naked
conductors:
Figure 4 is a plan of the slides and rails:
Figure 5 is a vertical section through a slide rail and arm:
Figure 6 is a side view of the roller-frame or stand with the retaining rails, and the
holders for the naked conductors; and,
Figure 7 is a front view of the roller-frame or stand.
Figures 2 to 7 are drawn to a larger scale than figure 1.
The supporting arm L of the agricultural implement (for instance a plough) is
provided with two slides 8, 81 figures 3 and 4, each roller-stand D carrying the
conductor or cable c for conveying the current to the implement, as well as the cable c¹
for the return of the current which passes from the main conductors a, a¹ through a
terminal with an insulated handle e to the conductor c and returns through the other
conductor c¹ and a terminal having a handle e¹ to the main conductor a¹.
The slides 8, 8² are suitably widened or tapered both laterally and downwardly from
the middle towards the ends to enable the slides to pass the cable holder which rests
upon the rail de (figure 6) of the roller-stands D without inconvenience.
The retaining rod or rail de is suspended to the laterally bent arm of the roller-
stand D by means of a ball and socket joint d (figures 3, 6 and 7) whereby the
tendency of the stand, when raised from the ground, to violently oscillate is
diminished. The deviation or deflection of the stand is limited by a wire stop d
which is secured to the retaining rail de and strikes against cross pieces d', d' on the
arm of the stand. The stand is provided underneath with two arms or legs which are
arranged at an angle to one another and one of which carries the bottom rail d³ and
the other the roller d².
The roller 2 lessens the resistance against the lateral movement of the two
conductors c, c¹ for the required distance when the plough is moved. The bottom
rail d³ on the other hand, prevents the return of the stand D and its conductors after
lateral movement.
The two conductors or cables c, c¹ are wound upon drums on a drum trolley b at
one end of the field and on a second drum trolley f at the other end of the field as
shewn in figure 1.
The drum trolley b is provided with an automatic tension device. Each of these
drums is provided with a shaft mounted in insulated bea:ings and near the drums are
arranged pulleys around each of which a cord 61 is applied which passes over a
roller 62 and carries at its free end a counterweight b³.
The second trolley f is provided with a tension device consisting of a winch or
windlass fi by means of which the cable can be stretched.
The advantage of the above described arrangement is that the violent oscillation of
the supporting stands is avoided and that, when the agricultural implement is moved
forward, lateral movement of the stand on the cable is permitted.
Having now particularly described and ascertained the nature of iny said
invention and in what manner the same is to be performed, I declare that what
I claim is
In electrically propelled agricultural implements, supporting the naked conductors
or cables c, c¹ upon a common retaining rod or rail do which is secured by a ball and
socket joint d to a stand provided with a roller d² and furnishing the arm L of the
mplement with slides 8, 8' in lieu of rollers for the purpose of preventing the
winging of the stands when raised from the ground and also through the medium

page_text: of the roller d² to facilitate the lateral movement of the two conductors, substantially
as described and illustrated in the accompanying drawings.
Dated the 23rd day of October 1897.
G. F. REDFERN & Co.
4, South Street, Finsbury, London, Agents for the Applicant.