Weeding-machine for the Pulling of Couch-grass.
Year: 1892

page_text: Date of Application, 27th Dec., 1892
Complete Specification Left, 27th May, 1893-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
Weeding-machine for the Pulling of Couch-grass.
I, LEOPOLD SCHNACKENBURG of the farm Schwetz near Graudenz, Germany,
Farmer, do hereby declare the nature of this invention to be as follows:-
The weeding-machine represented by the accompanying drawing is arranged as
follows:
The angled ends of the bow-frame a are provided with two riveted axle-journals b.
which hold the driving-wheels c. On the naves of these wheels, the two small
toothed wheels d are fixed, which catch into the wheels with inside-gearing e. The
axle is put through two holes of the frame a. Two pipes g are put loosly on
this axle, each of the pipes being half as long as the free length of the axle f
inside the bow-frame. On each of these pipes two drum-plates are fixed by means
of naves and arms, onto which the rakes i are screwed.
Every rake has three teeth which are attached in such a way, that the teeth of
the first rake are standing between the teeth of the next. Thus, two drums are
formed, turning on the axle f independent from each other.
Onto the arms of the outside drum-plate h, the inside toothed wheel e is screwed,
thus making the rotation of the drum dependent of the turning of the driving-
wheels c, so that the rake-drum must turn in accordance with the wheels e and d―
slower than the driving-wheels c.
The frame k is suspended on the ends of the axle f; in its middle it carries a
pole with draw-hook m, to which animals can be put in the ordinary way. The
frame will turn round the axle f. The lever n is screwed to the frame a and
with the curved adjusting-stay o which is firmly connected to the frame k, it can be
put higher or lower. When the lever n rests on the frame k, the rake-drums are
so low that the teeth can entirely enter the ground. If the lever n is adjusted
higher the rake-drums are lifted, and at the highest position of the lever n the
teeth become quite free of the ground.
In this state the machine can be easily transported on any road. When the
weeder is required to work, it is taken on the field in a lifted state; on the field
the rake-drum is let down by means of the lever n according to how the teeth are
required to catch into the ground, and the apparatus is moved same as is done with
an ordinary harrow.
For convenience, a drivers-seat may be provided on the frame k, also wipers for
the teeth may be attached to the frame k, but these are hardly ever required, as
the shocks are sufficient to make the couch-grass, which is pulled out, fall off
from the teeth.
The apparatus also works if the ground is moderately moist.
Dated this 24th dor of December 1899
COMPLETE SPECIFICATION.
Weeding-machine for the Pulling of Couch-grass.
I, LEOPOLD SCHNACKENBURG, of the farm Schwetz near Graudenz, Germany,
Farmer, 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 :―
The weeding-machine represented by the drawing filed with provisional

page_text: application in which Fig. 1 is a longitudinal section and Fig. 2 the plan of the
machine, is arranged as follows:
The angled ends of the bow-frame a are provided with two axle-journals b, which
hold the driving-wheels. On the naves of these wheels, the two small toothed
wheels d are fixed, which catch into the wheels with inside-gearing e. The axle f
is put through two holes of the frame a. Two pipes g are put loosly on this axle,
each of the pipes being half as long as the free length of the axle finside the bow-
frame. On each of these pipes two drum-plates are fixed by means of naves and
arms, onto which the rakes i are screwed.
Every rake has three teeth which are attached in such a way, that the teeth of
the first rake are standing between the teeth of the next. Thus, two drums are
formed turning on the axle independent from each other.
On to the arms of the outside drum-plate h, the inside toothed wheel e is screwed,
thus making the rotation of the drum dependent of the turning of the driving-
wheels c, so that the rake-drum must turn-in accordance with the wheels e and d
slower than the driving-wheels c.
The frame is suspended on the ends of the axle f; in its middle it carries a
pole with draw-hook m, to which animals can be put in the ordinary way. The
frame will turn round the axle f. The lever n is screwed to the frame a and
with the curved adjusting-stay o which is firmly connected to the frame k, it can
be put higher or lower. When the lever n rests on the frame the rake-drums
are so low that the teeth can entirely enter the ground. If the lever n is adjusted
higher the rake-drums are lifted, and at the highest position of the lever n the
teeth become quite free of the ground.
In this state the machine can be easily transported on any road. When the
weeder is required to work, it is taken on the field in a lifted state; on the field
the rake-drum is let down by means of the lever n according to how the teeth are
required to catch into the ground, and the apparatus is moved same as is done with
an ordinary harrow.
72
For convenience, a drivers-seat may be provided on the frame k, also wipers for
the teeth may be attached to the frame k, but these are hardly ever required, as the
shocks are sufficient to make the quick-grass, which is pulled out, fall off from the
teeth.
The apparatus also works if the ground is moderately moist.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
In a machine for pulling quick-grass and other rooted weeds out of the ground,
the combination of drums which are provided with rakes i being slowly rotated by
the driving-wheels while moving on, so that the teeth move on in the directing of
driving, at a slower speed than the machine itself, gradually leaving the ground,
and enabling the weeds to fall off, with the frames k and a, the tothed wheels e
and d, and the axle f, as set forth.
Dated this 25th day of April 1893.