IMPROVEMENTS IN APPARATUS FOR KNEADING DOUGH
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by John Henry Johnson at the Office
of the Commissioners of Patents on the 10th July 1883. Communicated to
him from Leon Dathis a person resident at Paris in the Republic of France,
Civil Engineer
JOHN HENRY JOHNSON, of 47 Lincolns Inn Fields, in the County of Middlesex,
Gentleman, "IMPROVEMENTS IN APPARATUS FOR KNEADING DOUGH," a com-
munication to me from Leon Dathis, a person resident at Paris in the Republic of
France, Civil Engineer,
This invention relating to machinery or apparatus for kneading dough consists
in the employment as hereinafter described of pins bars or teeth projecting from
the surfaces of two parallel and preferably vertical discs or plates, one of the said
discs partaking of a rotary motion, whilst the other is either fixed or rotates in
the opposite direction to the first so that the pins, bars or teeth on one of the
discs or plates pass between the corresponding pins bars or teeth on the other
plate
In carrying out this Invention a series of pins or bars are affixed to a vertical
disc mounted on a horizontal shaft carried in suitable bearings and provided with
a fly wheel and handle or other means for imparting rotary motion to the said
shaft and disc. A second disc or plate similarly provided with bars or pins
arranged at different distances from the centre to the bars on the first or rotary
disc is arranged in proximity to the rotary disc in such a manner that during the
rotation the bars on the latter pass between but do not touch those on the
stationary disc. The stationary disc is mounted on hinges so as to be capable of
being turned down into a horizontal position with its pins or bars pointing upwards,
or of being otherwise moved away from the rotating disc.
In order to work this apparatus the stationary disc is turned upon the hinge and
thereby caused to assume a horizontal position the pins or bars being on the upper
side A plate perforated with holes corresponding to the pins on the stationary
disc is then laid upon the latter and a similar plate is placed upon the rotating
disc. The dough being suitably prepared for the operation of kneading is now laid
upon the stationary or horizontal plate; this plate is then turned up into the
vertical position so that the mass of dough is enclosed between the stationary and

page_text: the horizontal plates and is penetrated by both series of bars. By rotating one of
the discs the dough can now be thoroughly kneaded mixed and exposed to the air
by the combined action of the stationary and rotating series of bars.
The two discs are maintained at the proper distance apart by a nut or pin on a
prolongation of the horizontal shaft or on a bar, passing through the axis of
rotation and a tubular distance piece is passed over the said bar or prolongation.
When the operation of kneading and ventilating is completed the stationary
disc is disconnected from the rotary disc and the kneaded dough is then readily
detached from the bars on both discs by means of the two perforated. plates
herein before described between which the dough is held. This apparatus is well
adapted for domestic use and enables the delicate operation of kneading to be
performed with facility by unskilled persons.