Year: 1888

page_text: 1, WILLIAM ALDRED, of 3, Poets' Corner, Westminster, in the County of Middlesex,
Electrician do hereby declare the nature of this invention to be as follows:-
My invention has for its object improvements in Electro-motors, and consists of
a metal disc of any required dimensions, on which mount one or more electro-
: magnets arranged in a circle. Through the centre of the disc-and the centres of the
magnets 1 place a shaft which, is supported by two bearings where it leaves the disc.
Between the two bearings I place either a cog or chain wheel, or a pulley and belting,
which, wheel or pulley is geared, or belted on to another one; on a corresponding
parallel shaft. Opposite the disc and magnets 1 place another disc with a similar
number, of electro-magnets, with the same arrangement, having the magnets toward
each other. I continue the shaft through the centres of the disc and magnets, con-
tinuing it through the centres of the other dise and magnets. This end of the shaft
outside the disc is also supported by two bearings. Between these two I place a cog,
or chain wheel, or a pulley and-belting, whichrist.connected to another cog, or chain
wheel, or pulley and belting on the aforesaid corresponding parallel shaft by an inter-
mediate wheel or pulley. This parallelsshaft runs the entire length of the machine,
and on it. I place a pulley, or cog, or chainwheel. for transmitting the motion for
any useful purpose.

page_text: COMPLETE SPECIFICATION.
- Improvements in Electro Motors
WILLIAM ALDRED, 3 Poet's Corner, Westminster S. W. Electrical Engineer, d
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
Fixed or mounted on a shaft running in bearings. is a circular plate of iron of
of suitable thickness on which are mounted in a ring any number of Horse Shoe
Magnets, or in the case of any annular Magnet with any number of alternate N
and S poles arranged in segments-the-said circular disc would be of any hard non-
magnetic or insulating substance, such as Ebony or other hard wood.
Opposite this disc of Magnets is mounted a similar disc of Magnets fixed on a
shaft the same way as the first, the magnets on one side do not change their polarity
which are in both instances alternately N and S, on the other side the Magnets
change their polarity as they pass the respective poles of the other, in the case of a
motor or generator, and for transmitting power or reversing. I use a countershaft,
which enables the work of Field and armature magnets to be utilised in one direction,
and also causing the collector and commutator to work harmoniously; the magnets
being caused to work in contrary directions by means of toothed wheels.
One great advantage obtained by this form of motor; is that it works with half its
magnetic force standing, and generally the largest half that is F. Magnets..
With the same amount of iron wire and current it performs about eight times the
amount of work of an ordinary motor beside being without a standing magnetic
part.
...In order that my Invention may be more readily understood and explained in
detail, I have hereunto annexed a Sheet of Drawings, on which letters of reference are
marked on corresponding parts on all the Figs. alike.
..
DESCRIPTION OF DRAWINGS.
Fig. 1. is a front elevation of my Motor or Dynamo...
Fig. 2. is a side.elevation of the commutator or collector, constructed of copper and
an insulating material.
Fig. 3 is a front view of same.
In these Figs. a is the framing of the Machine, having bearings at 6 in which revolve
the shafts c. on which said shafts are mounted the Fly wheels and the discs d with their
Magnets d² arranged either as Horse Shoes as shewn, or in an annular segmental ring,
the commutators or collectors e mounted on the aforesaid shafts cenabling the current
..to enter-the-magnets, and shut it off on one side at the requisite time. The plates of
ebonite or brass d' attached to the front face of the Magnets are for keeping the wire
of the said Magnets on the cores d³. The Motor as shown on the Drawing consiste

page_text: on the right hand not changing their magnetism whilst those on the left by means of
its commutator or collector e change every time its poles come opposite the poles of
the other which in this instance would be four times in each revolution, one Magnet
being prevented from going faster than the other by means of the interlocking gear f
running in bearings on countershaft g and fo on shaft c.
It will be understood that the two Magnets revolve in reverse directions; but by
means of the toothed wheels or gearing f³,.f, f³, f" and "the counter shaft g
running in bearings g' is made to revolve in one direction only, both magnets helping
to rotate the said countershaft g with pulley y' mounted thereon which enables the
gearing f f f to be connected for taking power out in the case of an Electro
Magnet, or putting in power in the case of a Generator.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is.:-
1st. In an electro Motor or generator, the method of mounting the magnets, so as
to enable them to revolve in contrary directions, as herein substantially described and
illustrated.
2nd. In an Electro Motor, the method of gearing herein shewn, whereby the
reverse motion of one Magnet is caused to rotate the countershaft, in the same
direction as the other magnet, as herein substantially described and illustrated.
3rd. In an electro Motor, the use of a countershaft for the purpose of reciprocal
power and action, enabling the Field and armature magnet work to be utilised in one
direction, and keeping the commutator and collector working harmoniously, as herein
substantially described and illustrated.
4th. The arrangement and construction of an electro Motor or generator, as herein
substantially described and illustrated.
Dated this 28th day of March 1889.
WILLIAM ALDRED.