Year: 1888

page_text: Empire of Germany, Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool and 6 Bank Street, Manchester, both in
the County of Lancaster, and 323 High Holborn, in the County of Middlesex, Civil
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 :-
In the roller mill shown in the accompanying drawings, Figures 1 to 6, and
having three rollers placed one above the other so as to form two separato courses,
the grist which comes from the right hand feed roli a, Figure 6, is drawn in
between the rollers W₁ and W2. It is then thrown off by the scrapers 1, 2, on
to the continuous cloth band T, which takes it along the side of the middle roller
to the pocket c, placed in the check of the machine, through which pocket it
falls into the compartment of the discharge hopper. The partition e suspended
between the checks of the machine, prevents the material coming from the left
band feed roll, from falling on to the continuous band, and the metal plate leads the
material between the cylinders W and W³. It is taken off these by means of
scrapers, 63 and 6, and falls into the second compartment d¹ of the discharge
hopper.
The rollers and, over which the continuous band runs, receive their motion
from the middle roller W by means of pulleys and conical wheels g.
The position of the roller, and consequently the tightness of the cloth can be
varied by means of a hand wheel and screw axle i.
In order that the partition e shall not prevent the material from being handled as it
comes from the cylinders W, W, the said partition is provided with valves h
(Figures 1 and 6). These valves are provided with a roof shaped projection on the
inside, which, when the valves are opened, as shown in Figure 1, throws off the
material to the right and left of the opening as it falls from the feed roll a², and thus
prevents the crushed and uncrushed material from becoming mixed.

page_text: The following arrangements serve to regulate the feed and the action of the
rollers :-
The slides m, which slide against the sloping sides of the feed hopper, and are
adjustable by means of a rack and pinion on the actuating shaft, project in the
direction of the feed rolls, which are adjustably mounted inside the iron hopper.
Outside the wall of the hopper, worm wheels are placed adjustably upon the axle
of the actuating shafts, and the said wheels can be moved by means of a worm bearing
shaft o, provided with hand wheels.
Each of the worm wheels is adjustably fixed to the axle 1, by means of the hand
lever p, keyed on to the said axle, and by means of a slot 7 and a screw or bolt, so
that each slide can be moved separately by its land lever also by means of the hand
wheels, the shaft o, worms, worm wheels, and racks can be simultaneously moved in
either direction so as to regulate or entirely close the feed apparatus.
Moreover, for cutting off the supply, the shaft of the feed roll can be disconnected
from the driving mechanism by means of the clutch coupling s, Figure 5. The
position of the middle roller W is fixed, while the upper and lower rollers W and W³
are attached to levers t, (Figure 4), which move about fixed pins .
In order to adjust the rollers to any given distance apart, the position of these
levers is altered by means of the eccentric shaft v. The said shaft is provided
with a regulating lever, having a guiding slot and clamps, and the eccentric rod w
is provided with an adjusting hand wheel, and with a volute spring a, by which the
rollers may be brought nearer to or farther away from each other.
Having now particularly described and ascertained the nature of the said inven-
cion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
In a roller mill having three rollers, the continuous cloth band arrangement for
leading the ground material to one side of the mill, in combination with a dividing
partition such as e, provided with valves as described, whereby two different grindings
may be carried on simultaneously by means of three rollers, substantially as set
forth.
Date :, KAL
CAL
1
1000
WM. P. THOMPSON. & Co.,
Agents for the Applicant.