IMPROVEMENTS IN DYNAMO-ELECTRIC MACHINES
Year: 1879

page_text: LETTERS PATENT to Louis Simon, of the Town and County of Nottingham,
Engineer, for the Invention of "IMPROVEMENTS IN DYNAMO-ELECTRIC
MACHINES." A communication from abroad by Sigmund Schuckert, of
Nürnberg, in the Empire of Germany.
Sealed the 9th September 1879, and dated the 11th March 1879.
PROVISIONAL SPECIFICATION left by the said Louis Simon at the Office of
the Commissioners of Patents on the 11th March 1879.
LOUIS SIMON, of the Town and County of Nottingham, Engineer. "IMPROVE-
MENTS IN DYNAMO-ELECTRIC MACHINES." A communication from abroad by
Sigmund Schuckert, of Nürnberg, in the Empire of Germany.
This Invention relates to the construction of dynamo-electric machines with the.
most advantageous arrangement for utilising the induction wire or conductor on
the revolving iron armature, and reducing the warming of the same to a minimum.
For this purpose the armature is made flat and composed of several sheet iron
discs, both side faces as well as the outside being brought under the influence of
the magnet poles. These poles are arranged with their highest intensity of
magnetism directly opposite the side faces of the ring to act upon it.
The flat ring is made from a number of sheet iron discs which are magnetically
insulated from each other, serving to save power and prevent over warming of the
ring during working, because in these single sheet iron rings of little volume the
pole changing going on with little resistance the remaining magnetism is easily
destroyed. The warming is also prevented by the constant contact with the outside
air of a large portion of the ring.
The electro magnets face the ring with their pole plates (north pole) and (south
pole), and cover over of the whole surface, making opposite polarity in the ring,
which becomes the south pole at one point and the north pole at another point, those
points forming magnetic fields of high intensity through which the copperwire or
any other good conductor wound about the iron ring is moved during the action of
the machine, whereby electricity is induced in said conductor.
The induced currents between certain points are in one direction, and the
induced currents at other certain points are in another direction.

page_text: The generated currents on the upperpart of the ring above the neutral line are
opposite to those generated below that line and would neutralise each other. To
prevent this and to utilise them they are collected near the neutral points by
metallic brushes touching a cylinder, which brushes consist of a number of insulated
metallic pieces, each one connected with a conducting wire coming from the 5
revolving armature.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Louis 'Simon in the Great Seal Patent Office on the 11th
September 1879.
LOUIS SIMON, of the Town and County of Nottingham, Engineer. " IMPROVE-
MENTS IN DYNAMO-ELECTRIC MACHINES." A communication from abroad by
Sigmund Schuckert, of Nürnberg, in the Empire of Germany.
This Invention relates to the construction of dynamo electric machines with the
most advantageous arrangement for utilising the induction wire or conductor on
the revolving iron armature, and reducing the warming of the same to a minimum.
For this purpose the armature is made flat.and composed of several sheet iron.
discs. Both side faces as well as the outside are brought under the influence of
the magnet poles, these poles being arranged with their highest intensity of
magnetism directly opposite the side faces of the ring to act upon it.
·
The flat ring is made from a number of sheet-iron discs which are magnetically
insulated from each other, serving to save power and prevent over warming of the
ring during working, because in these single sheet-iron rings of little volume the
pole changing goes on with little resistance, the remaining magnetism being easily
destroyed. The warming is also prevented by the constant contact with the outside
air of a large portion of the ring. The annexed Drawings represent the Invention.
The electro magnets M, M', face the ring with their pole plates N, N¹, (north pole)
and S, S¹, (south pole), and cover over 2/3 of the whole surface, making opposite
polarity in the ring 8, n, which becomes the southpole between N, N¹, at 8, and the
northpole between S, S³, at n, these forming magnetic fields of high intensity,
through which the copper wire or any other good conductor wound about the iron
. ring is moved during the action of the machine, whereby electricity is induced in
said conductor.
The induced currents. between N, 8, and 8, N', are in one direction, also those
induced currents between S, n, and n, S¹:
The generated currents on the upper part of the ring above the neutral line o
(Figure 1) are opposite to those generated below that line and would neutralize
each other. To prevent this and to utilize them they are collected near the neutral
points o, o, by metallic brushes B touching a cylinder R, which brushes consist of a
number of insulated metallic pieces, each one connected with a conducting wire
coming from the revolving armature.
(

page_text: Figure 3 shows an arrangement with two armatures between one of the poles.
Having now described the nature of the said Invention, and in what manner
the same is to be performed, I declare that I claim as the Invention communicated
to me,-
The particular construction or arrangement of apparatus above described, and as
represented in the annexed Sheet of Drawings.
In witness whereof, I, the said Louis Simon, have hereunto set my hand and
seal, this Ninth day of September, in the year of our Lord One thousand
eight hundred and seventy nine.
LOUIS SIMON. (L.S.)