AN APPARATUS FOR KNEADING AND AERATING DOUGH to bo
Year: 1884

page_text: I, LEON DATHIS fils of Boulevard Saint Denis N° 1 at Paris Civil Engineer do
hereby declare the nature of my invention for AN APPARATUS FOR KNEADING AND
AERATING DOUGH to bo as follows:-
My invention consists of an apparatus for kneading and aërating dough. This
apparatus is composed of a movable trough or receiver which presents successively
every part of the dough to the action of a kneading or manipulating instrument
which lifts it constantly by capillarity so as to act upon it by stretching it, aërating
it, and swelling it without ever "treading" or pressing it. The trough or receiver
is pivoted upon an axis somewhat inclined from the vertical and the kneading or
manipulating tools or forks, of which there may be one or more, are fixed to levers
actuated by excentrics or cranks on a shaft which is worked in any suitable manner.
The back ends of the levers are connected to a hinged rod which serves as a variable
point of support as it can not only oscillate but can also be raised or lowered so as
to regulate the depth of the movement of the kneading tools in the trough. By
prolonging the levers behind the point of support and applying weights, springs or
other power to the prolongations the weight of the dough at the other end of tho
lever can be counterbalanced and the power necessary for working the apparatus
reduced. The apparatus acts as follows: The trough being actuated by any
suitable means presents successively all the parts of the dough which it contains to
the kneading tool or tools. These tools in their movement describe an ellipse; they
dip as much as is necessary in the dough; they lift it by capillarity, stretch it,
aërate it and swell it; then being freed entirely or partially from it at the upper
part of their course they descend into another part of the dough which is presented
to them and so on until the kneading or manipulation is finished. This mode of
working gives to the dough a suppleness, a body, a lightness and a whiteness quite
unusual. The kneading.or manipulation can be completed by means of a rotating
fork inserted into the trough.

page_text: COMPLETE SPECIFICATION.
I LEON DATHIS, fils of Boulevard Saint Denis, N° 1 at Paris, Civil Engineer do
hereby declare the nature of my invention for "AN APPARATUS FOR KNEADING
AND AERATING DOUGH," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:—
My invention consists of an apparatus for kneading and aerating dough. This
-apparatus.is.composed of a movable trough or receiver which presents successively
every part-of-tho-dough_to_the_action of a kneading-or-manipulating.instrument
which lifts it constantly by capillarity so as to act upon it by stretching-it, aërating.
it, and swelling it without ever "treading" or pressing it. The trough or receiver
is pivoted upon an axis some-what inclined from the vertical and the kneading or
_ manipulating tools or forks, of which there may be one or more, are fixed to levers
actuated by excentrics-or cranks on a shaft-which is worked in any suitable manner.
The back ends of the levers are connected to a hinged rod which serves as a variable=
point of support as it can not only oscillate-but can also be raised or lowered so.as.
to-regulate the depth of the movement of the kneading tools in the trough. By
prolonging the levers behind the point of support-and-applying weights, springs or
other power to the prolongations the weight of the dough at the other end of the
lever can be counterbalanced and the power necessary for working the apparatus
.reduced.
In Figure 1 of the annexed drawings A represents the movable trough or receiver
pivoted at B. C, C are the kneading or manipulating tools or forks of which there
may be one or more. Each tool O is fixed to a lever D, E, F actuated by a crank
or excentric E, G on a shaft G worked in any suitable manner. The back end F
of each lever is connected to a hinged rod F, H that can oscillate between N and O
and can also be raised or lowered by means of the slide P. Each lever can be
prolonged to M and weights, springs or other power can be applied to these
prolongations for the purpose already stated.
The apparatus acts as follows:-The trough A being actuated by any suitable
means presents successively all the parts of the dough which it contains to the
kneading tool or tools O. These tools in their movement describe an ellipse I, J, K, L;
they dip as much as is necessary in the dough, they lift it by capillarity, stretch it,
aërate it and swell it; then being freed entirely or partially from it at K they descend
into another part of the dough which is presented to them and so on until the
kneading or manipulation is finished. This mode of working gives to the dough
a suppleness, a body, a lightness and a whiteness quite unusual. The kneading or
manipulation can be completed by means of a rotating fork inserted into the trough.
Figures 2 and 3 represent a rotating fork for this purpose. B is a rotating spindle
carrying the blades or prongs C, D. which are curved to different radii and formed
so as to pick up dough from the bottom of the trough at each rotation. The fork
has a to and fro movement imparted to it from H to H² so as to enable it to act
upon all the dough in the trough R. This movement can be given by any suitable
means, such for example as by the gearing G, connecting piece F and lever E as
shown.

page_text: 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
The apparatus arranged and working substantially as herein before described for
kneading and aërating dough.