AN IMPROVED DYNAMO- ELECTRIC MOTOR MACHINE
Year: 1882

page_text: LETTERS PATENT to Eugène Desfossés of the city of Paris in the Republic
of France, Civil Engineer for an Invention of AN IMPROVED DYNAMO-
ELECTRIC MOTOR MACHINE
PROVISIONAL SPECIFICATION left by the said Eugène Desfossés at the
Office of the Commissioners of Patents on the 14th August 1882.
EUGENE DESFOSSÉS of the city of Paris in the Republic of France, Civil
Engineer "AN IMPROVED DYNAMO-ELECTRIC MOTOR MACHINE
33
The features of novelty in the present invention consist First in the employment
of magnetic pinions formed of bobbins whose number would vary in proportion to
the power to be produced by the motor, and Secondly in dividing the inductors
by a separating piece so as to form two electrics.
Fig 1 of the accompanying drawings represents an apparatus embodying my
invention A. A'. A" A are the inductors. B the piece dividing the inductors.
C. C are the magnetic pinions. D D¹ are the points of reception and of exit
respectively of the electric current.
The following is a description of the action of the apparatus. The current
enters at D, passes to the inductors A. A'. thence to the upper magnetic pinion C,
by aid of some suitable friction device, the current then passes to the lower
magnetic pinion C¹ by means of a second fiction apparatus, and from here it
passes to the inductor A" by a third friction apparatus, then to the inductor A¹
whence it makes its exit to pass out at D¹ to enter the generator.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Eugène Desfossés in the Great Seal Patent Office on the
13th February 1883.
EUGENE DESFOSSES of the city of Paris in the Republic of France Civil
Engineer AN IMPROVED DYNAMO-ELECTRIC MOTOR MACHINE
The features of novelty in the present invention consist Firstly in the employ-
ment of magnetic pinions formed of bobbins whose number would vary in
proportion to the power to be produced by the motor, and Secondly in dividing
the two inductors by a separating piece so as to form two electrics
Fig 1 represents an apparatus embodying my invention seen in front elevation,
Fig 2 is a side elevation. Fig 3 a plan, Fig 4 is a front view of one of the
magnetic pinions, Fig 5 is a side view of the same.
A A A A are the inductors Figs 1 and 2. B is the piece dividing the
inductors. C. C are the magnetic pinions. D. D' are the points of reception and
of exit respectively of the electric currents.
The following is a description of the action of the apparatus. The current
entering at D, passes to the inductors A. A¹, thence to the upper magnetic
pinion C, by aid of a friction device, the current then passes to the lower magnetic
pinion C¹, by means of a second friction apparatus, and from here it passes to the
inductor A, by a third friction apparatus, then to the inductor A1, whence it
makes its exit to pass out at D₁, after which it returns to the generator.
If the apparatus is employed as a Dynamo-electric machine, the inductors
become inducted
What is claimed as the invention is First the use of magnetic pinions formed of
bobbins as herein described, the number varying in proportion to the force it is
desired to produce as the motor. Secondly the separation of the inductors by the
piece B, thus constituting two electrics.
In witness whereof I the said Eugène Desfossés have hereunto set my hand
and seal this twelfth day of February in the year of Our Lord One
thousand eight hundred and eighty three.