IMPROVEMENTS. IN DOUGH KNEADING MACHINES
Year: 1886

page_text: :
I MORITZ GRAF STRACHWITZ of N° 12 Mariahilfer Strasse in the City of
Vienna, Austria, Engineer, do hereby declare the nature of my Invention for
IMPROVEMENTS. IN DOUGH KNEADING MACHINES" and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:—
My Invention relates to improvements in dough kneading machines. The
system of kneading dough by machinery has been in use for many years and in
many Countries but my improved machine differs from all existing machines in its
action and construction.
The chief advantages of my improved machine are the rapidity with which the
dough can be treated and the perfect kneading attained by employing the same.
By means of a systematic continuous kneading and beating of the material: in
the kneading trough a perfect amalgamation and mixing of all the parts of the
Baid dough to a homogeneous mass as accomplished. The machine can be driven.
Figure 1 is a vertical section of my improved kneading machine.
Figure 2 is a like section at a right angle to the section Fig. 1.
Figure 3 is an elevation of the machine and Figure 4 a horizontal section of the
same Figures 5 and 6 show modified constructions of the trough.
My improved machine consists principally of a kneading trough B in which the
stirring or mixing device A. is arranged to operate the same being so constructed
that it will not only keep itself but also the inside of the trough free from the
adhering dough.
L.
3
The mixing or stirring device consists of two rings which rotate in such manner
on their trunnions that in revolving they will be about two thirds of the radius of
the ring apart and will mesh with each other.
The depth of the lower inside surface of the trough corresponds with the rings
which in rotating come in light contact with the trough, the form of the rings
being so chosen that the outer periphery of the one will gently touch the inner
periphery of the other the wheel gearing D being so arranged that the said rings
will constantly retain their position to which they were adjusted.
The construction of the trough is such that the rings A do not have their
bearings in the trough the trunnions of the said rings A being carried by
appropriate standards C which also carry the two halves of the trough which

page_text: need only then be screwed together when the standards and the other parts of the
machine are fixed and ready to operate.
The trough is filled through the upper opening and is emptied by means of one
or two openings in the bottom of the same which said openings are closed by
hermically fitting doors E which are pressed up snugly against the edges of the
openings by means of an excenter or other suitable closing device.
The trough B represented in Fig. 5 is also made of two halves the one half
being rigidly fixed to the standards C whilst the other half is arranged to turn
around the hinge or joint G and is firmly held in position by means of the
excentrical arm F-As soon as the arm F is turned back the one half of the trough
can be turned on its hinge and the trough emptied-In this said Fig. 5 and also
Fig. 6 the lid to the trough is omitted and according to Figure 6 both halves of
the trough are provided with wheels or rollers and handles-The rings are not
screwed to the standards but are held in position by the two excentrics F, F.
In order to employ the trough the two excentric arms F F are turned back and
the trough halves taken apart,
The standards C are arranged on the base plate H and also the shafting for the
driving gear.
A platform can be arranged under the trough B onto which the dough falls.
If the machine is to be driven by motive force the same is effected from the
strap drum O and a double set of driving gear K, L and M, N, so that the mixing
rings make about 16 revolutions per minute-The gearing is so arranged that the
strap drum makes about 120 revolutions per minute.
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 dough kneading and mixing machines, the application employment and
arrangement of two rings rotating on their trunnions in the kneading trough
about rds of their radius apart from each other, the same being in communication
with each other by means of suitable driving gear, so that each ring in rotating
will come in light contact with the other and also the walls of the trough, in
which manner a rapid and homogeneous mixture of the dough is accomplished,
substantially as described in the foregoing specification and shown in the accom-
panying drawings.
2. In dough kneading and mixing machines, the construction and arrangement
of the kneading trough of two parts of like size which do not serve as bearing for
the mixing device in such manner that the trough and the mixing device are
carried each for itself in the same standards and whereby the emptying of the
trough can be effected by means of the ports in the lower part of the said trough
said openings being closed by suitable doors and excentrics or their equivalent, by
turning up the one half of the trough or separating, substantially as described in
the foregoing specification and shown in the accompanying drawing.
50. 1
1000
FELL & WILDING,
Agents for the Applicant.