IMPROVEMENTS IN ELECTRIC MOTORS
Year: 1882

page_text: :
LETTERS PATENT to Alfred Gasc de Neeff and Eugène Desfossés Civil
Engineer both of the city of Paris in the Republic of France for an Invention
of IMPROVEMENTS IN ELECTRIC MOTORS
PROVISIONAL SPECIFICATION left by the said Alfred Gasc de Neeff and
Eugène Desfossés at the Office of the Commissioners of Patents on the
17th October 1882.
ALFRED GASC DE NEEFF and EUGENE DESFOssés, Civil Engineer, both of the
city of Paris in the Republic of France IMPROVEMENTS IN ELECTRIC MOTORS
The improvod motor consists of a frame supporting two induction bobbins united
top and bottom by soft iron bars fixed to the bobbins by screws, these bars
communicate with two others also of soft iron, between which a number of bobbins
on the Siemens principle turn and are coupled at right angles so as to overcome
the dead point.
The axis of these bobbins is supported by two pedestals. At one end of the
axis is an electrical accumulator to which the current is directed by friction; at
the other end of the axis is a pinion gearing with a wheel which latter transmits
motion to a fly wheel from whence the force produced by the apparatus may be
directed for working small machinery for various purposes.
In front of the frame are the points of entry and exit of the current. The exit
point takes a diagonal course and enters one of the induction bobbins returning
from the accumulator to enter the second bobbin taking a diagonal course to the
electrical generator.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Gase de Neeff and Eugène Desfossés in the Great Seal Patent
Office on the 16th April 1883.
ALFRED GASO DE NEEFF and EUGENE DESFOSSÉS Civil Engineer both of the
city of Paris in the Republic of France IMPROVEMENTS IN ELECTRIC MOTORS
The improved electrical motor the subject of the present invention consists of a.
frame A as shown in the accompanying drawings which represent an apparatus
embodying our invention the saine letters of reference indicating the same parts
in the several Figures of which Figure 1 is a, side view of the motor. Figure 2
being a plan and Figure 3 an end view of the same
The dotted lines in the plan view Figure 2 represent the course of the current
as will be hereafter explained.
The frame A supports two induction bobbins or coils vide letters B. B¹. united
top and bottom by soft iron bars C. C. fixed to the bobbins by screws, these bars
communicate with two other soft iron bars D. D. between which a number of
bobbins on the Siemens principle, turn and are coupled at right angles so as to
overcome what may be termed the dead point.
The axis of these bobbins is supported by two pedestals E. E'. At one end of
the axis is an electrical collector F. to which the current is transmitted by the
friction devices G, G, at the other end of the axis is a pinion H, gearing with a
wheel I, which latter transmits motion to a fly wheel J, from whence the force
produced by the apparatus may be directed for working small machinery for
various purposes
In front of the frame are the points of entry K, and of exit K of the current, at
the exit point the current takes a diagonal course as shown by the dotted lines in
the plan Figure 2 and enters one of the induction bobbins B thence it returns
from the collector F to the second bobbin B' and again taking a diagonal course.
also marked in dotted lines returns to the electrical generator
This motor represents a force equivalent to from 8 to 10 kilogrammètres, and
is useful in many industries requiring only a small force and is especially useful
for driving an iron or wood turning lathe, for working sewing machines, in
propelling small vessels, or pleasure boats and in many kindred applications.
In witness whereof we the said Alfred Gasc de Neeff and Eugène Desfossés
have hereunto set our hands and seals this eleventh day of April, in the
Year of Our Lord One thousand eight hundred and eighty three