ROLLER GRAIN GRINDING MILLS
Year: 1886

page_text: Date of Application, 1st July, 1886.
Complete Left, 28th Mar., 1887.
Complete Accepted, 29th Apr., 1887.
We Sir BERNHARD SAMUELSON. Baronet of Banbury Oxfordshire Engineer and
CARL STECKL of Banbury Engineer's Draughtsman do hereby declare the nature of
our invention for ROLLER GRAIN GRINDING MILLS to be as follows:-
:-
For the purpose of adjusting the Rollers of Roller grain grinding Mills we adopt
the following arrangement.
In each pair of Rollers one is fixed, and the other is free to be moved, this latter
radiates on two pins, one at each end of the roller-on each pin a lever is hung,
which lever carries the bearing of the roller and is attached to the adjusting device
at one end-The adjusting device includes-
1st. A means of regulating the distance between the rollers.
2nd. A spring arrangement for putting pressure on them after they have been
regulated.
3rd. An arrangement for carrying the movable roller up to the working position at
which the regulation takes place, or separating the Rollers entirely.
The regulation is effected by a tube screwed externally, and a hand wheel or its
equivalent forming a nut on said tube, the hand wheel takes its pressure against the
shoulder of a spindle, the opposite end of which is hung on a cam, working on a cam
shaft carried on the main frame of the machine. This spindle passes through the tube,
the latter itself passing through an eye in the lever.
The spring arrangement consists of a spring pressing on the lever at one end and
bearing against a washer on the tube, this pressure is varied by nuts on the opposite
ends of the tube.
•
The arrangement for carrying the Roller up to the working position or separating
the rollers, consists of a lever or its equivalent on the cam, by means of which the cam
can be turned round and all the attachments carried by the cam displaced from their
working position.
Dated this Twenty ninth day of June 1886
B. SAMUELSON.
CARL STECKL.

page_text: We Sir BERNHARD SAMUELSON Baronet of Banbury Oxfordshire Engineer, and
CARL STECKL of Banbury Engineers' draughtsman do hereby declare the nature of
this invention and in what manner the same is to be perforined, to be particularly
described and ascertained in and by the following statement:-
For the purpose of adjusting the rollers of Roller Grain Grinding Mills we adopt
the following arrangement.
In each pair of Rollers, one is fixed and the other is free to be moved this latter
radiates on two pins, one at each end of the Roller. On each pin a lever is hung,
which lever carries the bearing of the Roller and is attached to the adjusting device at
one end. The adjusting device includes.
1st. A means of regulating the distance between the Rollers.
2nd. A spring arrangement for putting pressure on them after they have been
regulated.
3rd. An arrangement for carring the movable roller up to the working position
at which the regulation takes place or separating the Rollers entirely.
The regulation is effected by a tube screwed externally, and a hand wheel, or its
equivalent, forming a nut on said tube, the hand wheel takes its pressure against the
shoulder of a spindle, the opposite end of which is hung on a cam, working on a cam
shaft carried on the main frame of the Machine. This Spindle passes through the
tube, the latter itself passing through an eye in the lever.
The Spring arrangement consists of a Spring pressing on the lever at one end and
bearing against a washer on the tube, this pressure is varied by nuts on the opposite
ends of the tube.
The arrangement for carrying the roller up to the working position, or separating
the Rollers, consists of a Lever or its equivalent on the Cam, by means of which the
Cam can be turned round, and all the attachments carried by the Cam displaced from
their working position.
And in order that our said Invention may be clearly described and ascertained
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1. is a side elevation of the Mill one half being in section through the centre
line.
Fig. 2. is a front elevation of the same partly in section.
Fig. 3 is a sectional elevation of the Adjusting device.
In Figs. 1. 2 and 3 A is the fixed Roller and B is the movable Roller.
Pinst figs. 1 and 3 on each side of the Main Frame, carry the fixed end of the
lever H, the movable end of which lever is attached to the adjusting device, and on
which lever between the said device and the pin forming the fulcrum, the movable
roller is hung.

page_text: a in fig. 3 is the tube screwed externally showing the screw at b, b¹,-c in figs. 1. 2
and 3 is the hand wheel forming the nut on the tube and taking its pressure against
the shoulder d in fig. 3 on spindle e in figs. 1. 2 and 3. The opposite end of the
spindle e is hung on the Cam f. figs. 1. 2 and 3. This Cam works on the Cam
Shaft same figs.-the shaft being carried on the Main Frame G of the Machine
figs. 1. 2 and 3. The spindle e passes through the tube a the tube itself passing
through an eye in the Lever H figs. 1. 2 and 3.
i fig.
is the Spring pressing on the Lever H at one end and bearing against a
washer fig. 3. on the Tube a, the pressure being varied by the nuts 1, 1, figs. 1. 2
and 3. on the opposite ends of the Tube.
m figs. 1. 2 and 3 is a Lover on the Shaft f¹ on which the Cam fis fixed. Before
starting the Mill the Cam f and lever mare in the position shown in figs. 1 and 3 in
dotted lines. In order to carry the movable Roller towards its working position, the
Lever is raised to the position shown in the drawings in full lines the Cam being
thereby also brought up to the position similarly shown. The lever may be held in
position either by throwing the Cam over the dead centre of the Cam Shaft or by a
Stop."
$6
The Rollers in figs. 1. 2 and 3 are shown as having been brought up to the position
as aforesaid, and subsequently adjusted by the adjusting device which latter brings
them into actual contact or regulates the distance between them according to the
nature of the work to be done.-In the drawing fig. 3 the Rollers are shown in actual
contact and the Tube a is in its highest position bearing against the portion of the
hand wheel c which forms the nut.
If now it be desired to adjust the Rollers for grinding, the hand wheel is turned
causing the nut to revolve on the screwed portion b of the Tube a, this Tube being
prevented from turning by a slot working on a pin p fig. 3 fixed to the Spindle e.
The Tube will carry down the Spring arrangement i, k, l, and with it the
movable end of the lever H on which the Roller B is hung thereby causing the latter
to be parted from the fixed Roller. It will be seen that in this way the distance
between the Rollers will be varied according to the extent to which the screwed Tube
is depressed.
The object of the Spring arrangement is to form an elastic connection between the
Tube a. and the end of the lever H. In the event of a foreign substance being intro-
duced between the Rollers, the Spring i will collapse; the rollers will be parted and
the substance will be liberated after which the rollers will return to their normal
position.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed we wish it to be understood that we
do not claim the separate parts of the said Roller Grain Grinding Mill but we declare
that what we claim is-
1. The Device for adjusting the Rollers substantially as described and shown.
2. The Combination of the said Device with the device for temporary separation of
the Rollers.