IMPROVEMENTS OF ELECTRO MAGNETIC MOTORS AND THE APPLICATION OF THE ELECTRIC CURRENT DIRECTLY TO THE ELECTRO MAGNETS WITHOUT REVERSALS OR CHANGES OF. POLARITY
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We EDWARD TOYNBEE, 18 Malvern Villas, Willesden, Engineer, ISABELLA
REDFERN CULLEY, 18 Malvern Villas Willesden, Electrician do hereby declare the
nature of our invention for IMPROVEMENTS OF ELECTRO MAGNETIC MOTORS AND THE
APPLICATION OF THE ELECTRIC CURRENT DIRECTLY TO THE ELECTRO MAGNETS
WITHOUT REVERSALS OR CHANGES OF. POLARITY to be as follows :-.
We affix upon one, two, or any suitable number of pairs of Discs: each pair
having one stationary and one revolving set of Magnets-(usually termed Arina-
ture & Field Magnets) the requisite No of Electro Magnets, to make up one or
more Complete Magnetic ring or rings-the N° required being proportional to
their size and to the periphery of the Circle which it is desired to surround-The
Electro Magnets are in sets or series, so arranged that they cannot possibly act in
any way prejudicially on one another-The Electro Magnets occupying opposite
sides of the revolving disc and their corresponding stationary ones-are magnetized
in equal numbers at the same time, so that the lateral stress which would otherwise
be inevitable should be neutralized-Only the attractive lines of Magnetic force are
utilized so that there is no change of Polarity or reversals.
The sets or series of Electro Magnets are magnetized in succession by the whole
strength of the Electric Current for the period of time necessary to enable them.
to develop their maximum power, and that at the precise time when they are
occupying their best relative positions for so, doing, after which period of time or .
immediately prior to it, the next series are magnetized by the Current being for
an instant divided between the two sets-as may be thought most advantageous,
in the latter case the Electric Current is continuous-little or no heat is evolved
and very trifling if any sparking at the brush takes place.
EDWARD TOYNBEE,
ISABELLA REDFERN CULLEY.

page_text: We EDWARD TOYNBEE, 18 Malvern Villas, Willesden, Engineer, ISABELLA
REDFERN CULLEY 18 Malvern Villas, Willesden (Spinster) Electrician, do hereby
declare the nature of our invention for IMPROVEMENTS OF ELECTRO MAGNETIC
MOTORS AND IN THE METHOD. OF APPLYING THE CURRENT WITHOUT REVERSALS
OR CHANGES OF POLARITY and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
On a revolving spindle are placed three or more discs (preferentially three);
Upon each of these discs are a set of Electro Horse Shoe Magnets which form
the armature each disc contains an equal No of Elec Magnets & opposite to these
Armature Electro Magnets an equal number of insulated field Magnets; the
armature magnets occupying intermediate positions relatively to the field
Magnets The number of Electro Magnets on the armature is such that the sum
of the diameters of their poles (one pole of each magnet) is equal to the circum-
ference of the circle described by the extremities of the poles of the armature
during their revolution-they would therefore form one complete magnetic ring-
On the spindle is a contact breaker, or split ring with as many segments as there
are Electro Magnets on the armature-this contact breaker is provided with a
spring to act as a brush-Also on the spindle are three copper ferrules-but,
insulated from it-each provided with a spring to take off the current-Every
third segment on contact breaker is connected with the series of Magnets on the
first disc The next third of the segments is similarly connected with the series
of Electro Magnets on the second disc-so on, with the third set of segments they
being connected with the series of Magnets on the third disc-then again recom-
mencing with the first disc, and so on in succession.
'
To join circuit direct the current to, and, by the brush of the contact breaker
to the first segment, which is in communication with the armature magnets of
the first disc On leaving the armature Magnets it is conducted to the first
copper ferrule, then by the spring to the field magnets-after passing through these
it returns.to the battery-or accumulator, as the case may be-Similarly the other
Electro Magnets on each of the other two discs are connected each one seperately,
and distinct from the others-The part of the revolution or stroke performed during
the interval between the breaks is equal to the diameter of the pole of a Magnet-
The action of the current on the Electro Magnets is one wholly and solely produc-
tive of attraction between the armature and field magnets-consequently, no
reversals or changes of polarity are requisite-the action is direct and continuous,
as, during a short interval of time prior to the first break the brush of the Contact
breaker will touch two segments at once, the more so, if a slight curvature be given
to the brush, which double contact will be productive of a continuous action-the
current never being completely thrown off.

page_text: REFERRING TO THE DRAWINGS.
To illustrate the above-I take 24 magnets-or 3 sets of eight each on the
armature also 24 field magnets-S to each armature disc-fig 5 & 6 shew these―
they also exhibit the armature magnets as occupying intermediate positions relative
to the field magnets-On the spindle fig 6 will be found the Contact breaker, and
three copper ferrules each with their respective springs and brushes.
Figs 1. 2. 3 shew the details of construction of contact breaker-with springs
lined with copper and fig 4 one of the copper rings the holes in the insulating
material of these ferrules are for the purpose of passing the connecting wires.
Fig 1 shews one face of the Contact breaker with copper ring Z-and 8 segments
inarked N° 3 connected with such ring.
Fig 2-shews the opposite face to fig 1, with 8 segments marked N° 2 and
8 segments marked N° I together with copper rings X to which the 8 segments
N° 1 are secured-and Y the copper ring to which the eight segments marked
N° 2 are screwed-Segments marked 2 pass over copper ring X from which however
they are insulated as shewn in Section Fig 3 letter i.
To start the Motor pass the Current by B the brush of the Contact breaker to
segment N° 1-from thence through the armature magnets of Disc N° 1, then
to copper ferrule N° 1-here it is taken off by spring b, and passed through field
magnets of disc N°1 and then home-As the Armature magnets have positive and
negative poles opposite to the reverse poles in the field magnets-the armature will
be attracted by the field magnet poles-until such time as they are immediately
facing one another-When the segment (1) will have quitted contact with the
brush of the contact breaker, but prior to this, the brush will have rested upon
the two segments (1) & (2) at the same time-so that the Current is acting
upon the magnets of discs (1) & (2) together until such time as N° 2 armature
faces N° 2 field Magnets-when the current will have been taken up by N° 3 disc
and so on-beginning again at N° 1 disc-when each disc will have been magnetized
and demagnetized 8 times, one revolution will have been performed-and so on
continuously.
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
1 The mechanical construction of contact breaker in combination with copper
ferrules and 3 discs as shewn-with a complete magnetic ring by which we are
enabled to apply the current at the time it is most effective-there being no
possibility of the magnets acting prejudicially upon each other.
2nd We also claim to drive motors-with a direct-continuous current without
reversals or changes of polarity-the magnets always being magnetized by the
current in the same direction-the current will be continuous as shewn above..
11.° 71 1
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