Improvements in or relating to Roller Threshing or Crushing Machines.
Year: 1899

page_text: Date of Application, 13th June, 1899 -Accepted, 12th Aug., 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Roller Threshing or Crushing
Machines.
I, BARTHOLOMÄUS JÄCKLE, Joiner, of Locherhof, Rottweil, Wurtemberg, in
the Empire of Germany, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
In the roller threshing or crushing machines with rollers adjustable as regards
the central vertical axis, the adjustment of the rollers is usually effected by
means of a rail fixed to the cross-beam, provided with a rack and toothed
wheel set on a shaft provided on a vertical wooden beam, and worked by means
of a hand crank and two conical wheels. In the working of these devices the
great inconvenience has been experienced that the person entrusted with the
adjustment of the rollers or drums, had to run round with the rollers during the
operation of adjustment. The object of the present invention is to remedy this
drawback.
The improved means of adjustment consist of a large horizontal hand-adjust-
ing-wheel or ring loosely set on the central shaft which is, preferably, con-
structed throughout of steel. The ring is provided on its inner side with teeth
gearing with those of a smaller wheel. The latter is keyed on a vertical shaft,
which at its upper end is provided with another toothed wheel gearing with the
rack for effecting the adjustment of the rollers, the shaft being supported in
suitable bearings.
The invention is represented in the accompanying drawing, in which
Figure 1 is a side view of a machine, and
Figure 2 a top view of the same.
Figure 3 is a section through the lower part of the adjustment device, and
Figure 4 is a top view of the latter.
At a convenient height from the floor is loosely arranged on the central or
driving shaft b of the machine a horizontal hand adjustment wheel or ring 7,
while at a little distance above it secured on the shaft the bearing p. Per-
pendicularly above it is arranged on the cross beam the top bearing or support o,
on the cross beam for the shaft w, provided at its upper and lower ends with
toothed wheels and respectively, keyed to it, of which one gears with the
rack m, while the other engages with the teeth of the hand adjustment ring q.
The adjustment of the rollers h which are suspended by rods & from the rail
carrying the rack m, is effected by simply turning the adjustment ring q, in
doing which the workman carrying out the adjustment may remain stationary.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
1. In a roller threshing or crushing machine with rollers radially adjustable
as regards the central shaft, a hand adjustment wheel locsely mounted on the

page_text: central driving shaft and provided with a series of inner teeth and a second
vertical shaft provided with two toothed wheels one engaging with the teeth
of the adjustment wheel and the other engaging with a rack for moving the
rollers radially to or from the centre, substantially as described.
2. The complete device for adjusting the position of the rollers in threshing
or crushing machines, substantially as described or illustrated in the accom-
panying drawings.