Year: 1886

page_text: Date of Application, 19th Oct., 1886.
Complete Left, 14th July, 1887.
Complete Accepted, 16th Aug. 1887.
RESERV
We, HERMANN AUGUST WEBER and JOHANN GOTTLIEB ZEIDLER both of Görlitz,
in the Empire of Germany, Manufacturers, do hereby declare the nature of this
invention, to be as follows:-
This invention relates to a machine specially for mixing flour and its object is to
produce a machine which shall enable the various kinds of flour to be mixed, to be
introduced at any time during the process into the machine and yet ensure a uniform
mixing thereof which was hitherto impossible.
When the machine has been filled it works continually and is so arranged that the
material to be mixed after passing through the apparatus is elevated automatically so
that it again passes through the machine, the process being repeated any suitable
number of times, until the operator deems the mixture sufficiently uniform and
causes the flour to leave the apparatus.
The invention consists in the arrangement of a mixing bottom of adjustable rotating
rollers, which work the material conducted upon them on inclined surfaces and
conduct it by degrees downward, where the flour is received by a system of spiral or
analogous transporting devices and forwarded to the elevators, where the flour is
raised and delivered again into the mixing chamber until the mixture is sufficiently
effected.
The invention further consists in the arrangement of an introduction or filling box
for the various sorts of flour to be mixed, in which are arranged in rows, suspended
plates, having free lateral movement and serving to prevent the flour from clogging.
Dated this 19th day of October 1886.
HERBERT & Co.,
67 Strand, Agents.

page_text: COMPLETE SPECIFICATION.
A New or Improved Machine for Mixing Flour or other Material.
We, HERMANN AUGUST WEBER, and JOHANN GOTTLIEB ZEIDLER, both of Görlitz
in the Empire of Germany, Manufacturers, do hereby declare the nature of our
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 an improved machine for the more effectual mixing
together of flour, the said machine being so contrived that the various sorts of flour
need not simultaneously be introduced therein but may be separately introduced at
any stage during the mixing.
The object of this is to enable the miller to feed at different times any quality or
qualities of flour direct from the mill or mills into the mixer and cause the flour so
added to be uniformly mingled with that already in the mixer.
When the machine has been filled it works continuously and is so arranged that the
material to be mixed after passing through the apparatus is elevated automatically so
that it again passes through the machine, the process being repeated a suitable
number of times, until the operator deems the mixture sufficiently uniform and causes)
the flour to leave the apparatus.
The invention consists in the arrangement of a mixing floor of adjustable rotating
rollers, which work the material conducted upon them by inclined surfaces and
conduct the said matertal by degrees through the floor so that the flour is received by
a system of spiral or analogous transporting devices and mixed and forwarded to
elevators by which the flour is raised and delivered again into the mixing chamber
nntil the mixture is sufficiently effected.
The invention further consists in the arrangement of a filling hopper for the
various sorts of flour to be mixed, in which are arranged in rows suspended plates,
having free lateral swinging movement and serving to prevent the flour from
clogging.
In the accompanying drawing, in which similar reference letters indicate like or
analogous parts, Fig. 1 is a longitudinal vertical section. Fig. 2 a vertical cross
section. Fig. 3 a horizontal section of the improved machine. The hopper b receives
the different sorts of flour in any suitable succession. Here the vertically suspended
and laterally movable plates m serve to prevent the different sorts of flour, which
frequently get damp from forming lumps and from clogging the hopper. These
plates firstly effect an unimpeded vertical advance of the flour contained in the
middle of the box. After emptying this middle space the plates recede laterally
from the flour lodging on the inclined walls of the hopper thereby allowing the same

page_text: to pass so that clogging of the flour in the hopper is avoided. The flour is forwarded
thence by small archimedian transporters to the elevators e and is raised to the main
transporters d lying above the mixing chamber in horizontal channels with openings
below; then the flour falls into. the receptacle a in which inclined conducting surfaces
are arranged. The latter are preferably made adjustable for regulating the rapidity
of the descent of the flour. The bottom of the receptacle a is formed of rollers g,
under which are situated the accumulating screws h. The chain or other pulleys k
and are actuated by chains or the like by means of gearing in the manner shown in
the drawing. The screws d and h are actuated on the right of the machine by mitre-
wheels, the elevators c on the left of the machine by belts from the screws d and
the small screws under the hopper 6 by belts from the elevators c. These actuating
devices however may vary according to the locality, size of the machine and number
of rollers, as the machine may be equally advantageously arranged for a broad,
high, low, long, short or narrow room.
In the receptacle a the flour is firstly introduced in layers e inclined to the
vertical plane.
This is effected as follows:
The flour falls out of the screws d vertically downward along the left wall of the
receptacle a, where it accumulates upwardly on the roller floor which is not yet set in
action, the falling flour lying at an angle corresponding to the quality of the flour
until the top of the heap arrives equal with the perforated channel of the screws d.
Thus a bottom is formed by degrees for the screws d by the flour itself, over
which bottom the fresh masses of flour from the serpentines are shifted to the
right and fall down. Thus the flour forms continually new layers that cover the
roller floor farther to the right, until the mass of flour to be mixed is entirely
arrived in the receptacle a. The above mentioned adjustable leading surfaces f
serve for uniformly leading these layers consisting of different sorts of flour. The
roller floor consists of the rollers g, which are preferably provided with a helical
grooving to the right and to the left.
In order to adjust the interstices between the rollers adjustable bearings are
arranged, so that the rollers can be lowered or raised.
As soon as the rollers are set in action, the different sorts of flour, mixed with
the contiguous layers, fall through the interstices of the rollers into the collecting
screws situated thereunder.
Lumps of flour are by this means broken up. It is advantageous to provide the
collecting screws with receiving spaces increasing in size towards the direction of
movement of the material mixed the threads of the screws being arranged with
uniformly increasing depth and inclination on conically shaped spindles. By this
means the screws as each space is filled on the right possess towards the left an
increasing space sufficient for receiving, besides the material conveyed from the right
further flour from the parts of the roller floor next above. The collecting screws
receive therefore the flour under the whole surface of the roller floor simultaneously
and uniformly so that they collect all layers of flour and pass the same to the
elevators c which carries said flour again into the receptacle a for being further
mixed.
The mixture being completed the flour is caused to pass direct into the packing
tube i.
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is :-
1. A flour mixing machine, consisting of a receptacle a with a mixing bottom
formed of rollers, in combination with stationary or adjustable inclined plates f
which cause the different sorts of flour to settle in inclined layers in the mixing
chamber.
2. In a flour mixing machine the combination of a mixing floor formed of
rollers g with collecting screws situated thereunder, which latter are furnished with
a receiving space increasing towards the direction of movement of the mixed material.

page_text: 3. In a flour mixing machine, for ensuring a continuous mixing of the flour, the
combination of a mixing chest a provided with a roller floor with the introducing
feed screws d in channels open below, collecting screws and elevators c.
4. The combination of a hopper having inclined walls, and in which are arranged
vertically suspended plates m movable with free lateral swing, with a flour mixing
machine with rotating roller floor for the purpose of allowing the said machine to be
gradually and in any suitable succession filled with the different sorts of flour to be
mixed.