Improvements in Flour Mixing Machines.
Year: 1899

page_text: Date of Application 18th Dec., 1899-Accepted, 27th Jan., 1900
Improvements in Flour Mixing Machines.
I, RUDOLF HIRSCHMANN, of 10, Gothestrasse, Breslau, in the Empire of Ger-
many, 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:
--
This invention relates to flour mixing machines and has for its object to pro-
vide mechanism in connection therewith for effecting the mixing process in a
more efficient manner and with less power and wear and tear of the mechanism.
I will describe my invention in reference to the accompanying drawings in
which Figs. 1, 2 and 3 are sectional views of my improved flour mixing recep-
tacle made in accordance with my invention and Fig. 4 is a detail.
The
In carrying out my invention I provide the mixer or receptacle a with a floor
consisting of alternate movable parts b and prismatical stationary parts c.
outer edges of the movable parts b, one of which is shown in elevation in Fig. 4
are arranged so close to the saddle-pieces or stationary parts c that when in the
position of rest as in Fig. 2 none of the materials contained in the receptacle a
can fall through. When however the parts are caused to rock by means of
suitable mechanism, they form longitudinal slots or openings d between them
and the parts through which openings the material passes. The parts b are
operated by suitable mechanism and caused to rock alternately to the one and
the other side so that a passage d is formed once at the right as shown in Fig. 1,
and then on the return motion of the parts b, on the left thereof as shown in
Fig. 3. Owing to this continuous change in the passage for the materials lay-
ing above the floor in the mixing receptacle a there is effected a thorough inter-
mixing of the materials as they fall into the collecting shoot e.
This improved mechanism differs from existing mixers by its alternate
arrangement of movable and stationary parts which enables larger passages d to
be obtained as compared with those formed as in existing machines between
rotary bodies instead of the oscillating bodies 6 and without the intervening
parts such as C so that for equal size of passages the extent of motion required
is reduced.
Again in this improved arrangement there is less weight on the movable parts
as a considerable portion of the materials lay on the stationary parts c and con-
sequently a much easier motion of the movable parts 6 and their driving mechan-
ism together with less wear is the result.
To prevent the materials from clogging between the parts e it is advantageous
to furnish the moving parts b, with stirring rods or agitators f as shown.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In flour mixing machines, a mixer having a floor formed of movable bodies
alternating with stationary parts substantially as and for the purpose set forth.

page_text: 2. In flour mixing machines, a mixer constructed arranged and adapted to
operate substantially as described in reference to and illustrated in the accom-
panying drawings.
Dated this Tighteenth do
1000
For the Applicant,
J. C. CHAPMAN & Co.,
Chartered Patent Agents, 70, Chancery Lane, London, W.C.