AN IMPROVED MACHINE FOR GENERATING ELECTRIC CURRENTS APPLICABLE ALSO AS AN ELECTROMOTOR
Year: 1882

page_text: LETTERS PATENT to Samuel Edmund Phillips of the firm Johnson and
Phillips Victoria Works Victoria Road Charlton in the county. of Kent
Engineers and Electricians for an invention of AN IMPROVED MACHINE FOR
GENERATING ELECTRIC CURRENTS APPLICABLE ALSO AS AN ELECTROMOTOR
partly a communication from abroad by Walter Claude Johnson at present.
staying at Mentone France
PROVISIONAL SPECIFICATION left by the said Samuel Edmund Phillips
at the Office of the Commissioners of Patents on the 20th March 1882.
SAMUEL EDMUND PHILLIPS of the firm Johnson and Phillips, Victoria Works
Victoria Road Charlton in the County of Kent Engineers and Electricians
" AN
IMPROVED MACHINE FOR GENERATING ELECTRIC CURRENTS APPLICABLE ALSO AS
AN ELECTROMOTOR (Partly a communication from abroad by Walter Claude
Johnson at present staying at Mentone, France"
"
On the outer edge of a disc made of any suitable material, but preferably of
metal, a number of coils of wire are fixed a double circle of such coils may however
be fixed, one circle on each side of the disc and held in position by lugs or projec-
tions standing out from the disc or a single circle of coils may be made to drop
into openings cut in the disc; in this way three complete circles of coils can be
obtained if desired..
For the purpose of completing the magnetic circuit of the iron cores on which
the coils may be wound wedge shaped pieces may be fitted to fill up the space
between the ends of the coils. The coils themselves may be wound on iron or
wood cores of the same size throughout, the wire winding may be suitably stepped
to make the outside surface of the coils when fixed form as nearly as possible a
perfect circle or the same object may be attained by giving the iron or wood cores
a slight but sufficient bend, and winding each flake of wire to the full length or
the iron or wood cores may be bulged in the centre so that when it is wound with
the necessary number of full flakes of wire ts outside surface will be suitably
CD...
477

page_text: curved. Such a disc with its one, two, three or more rings of coils wound on iron
or wood cores or without cores if desired suitably fixed near its outside circum-
ference is mounted in the usual manner on a spindle running in suitable bearings
the disc being free to rotate between the poles of two or more electro or permanent
magnets the poles of which are so shaped as to surround as far as possible the coils
of wire in a direction at right angles to the direction of their rotation. In this
way these coils are made to pass through a very concentrated magnetic field and
the wire of the coils will throughout a very considerable part of its length pass
through the magnetic lines of force.
The connections for taking off the current may be made in the usual way,
brushes or rollers being made to rub or roll on a commutator fixed to the shaft
which carries the disc the coils being connected to the said commutator in any
suitable manner.
The field magnets may be excited by a part or the whole of the current gene-
rated in the ring or rings of bobbins; it being made to pass through them, or they
may be excited from an external source, or they may consist of permanent magnets."
The coils and field magnets may be wound by the ordinary insulated wire, but by
preference they are wound with square or angular copper wire suitably insulated
with cotton, silk, or otherwise. In this way we are able to wind a given weight
of metal in a smaller space than when round wire is used, this being an important
feature in this Invention.
We pass a greater part of the wire of the coils through the magnetic field than
has previously been done, by means of the specially shaped pole pieces of the field
magnets; and we obtain an electrical advantage in winding this or other forms of
electric machines with wire of a square or angular.section.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Edmund Phillips in the Great Seal Patent Office on the
20th September 1882.
AN
SAMUEL EDMUND PHILLIPS of the firm Johnson and Phillips Victoria Works,
Victoria Road, Charlton in the County of Kent Engineers and Electricians
IMPROVED MACHINE FOR GENERATING ELECTRIC CURRENTS APPLICABLE ALSO AS
AN ELECTROMOTOR (Partly a communication from abroad by Walter Claude
Johnson at present staying at Mentone France.)
This Invention relates to an improved construction or arrangement of machine
for generating electric currents whereby a given weight of metal, as wire, preferably
of square or angular shape can be wound into a smaller space than at present
known.
On the outer edge of a disc made of any suitable material but preferably of
metal, a number of coils of wire are fixed, a double circle of such coils may however
be fixed one circle on each side of the disc and held in position by lugs or projec-
tions standing out from the disc, or a single circle of coils may be made to drop
into openings cut in the disc; in this way three complete circles of coils can be
obtained if desired.
up
For the purpose of completing the magnetic circuit of the iron cores on which
the coils may be wound, wedge shaped pieces may be fitted to fill
the space
between the ends of the coils. The coils themselves may be wound on iron or wood
cores of the same size throughout; the wire winding may be suitably stepped to
make the outside surface of the coils when fixed, form as nearly as possible a perfect
circle, or the same object may be attained by giving the iron or wood cores a slight
but sufficient bend and winding each flake of wire to the full length; or the iron
or wood cores may be bulged in the centre so that when it is wound with the
necessary number of full flakes of wire its outside surface will be suitably.
curved.
Such a disc with its one, two, three or more rings of coils wound on iron or wood
cores, or without cores if desired, suitably fixed near its outside circumference is
mounted in the usual manner on a spindle running in suitable bearings, the disc
being free to rotate between the poles of two or more electro or permanent magnets
the poles of which are so shaped as to surround as far as possible the coils of wire
in a direction at right angles to the direction of their rotation.
In this way these coils are made to pass through a very concentrated magnetic
field and the wire of the coils will throughout a very considerable part of its length
pass through the magnetic lines of force.
The connections for taking off the current may be made in the usual way,
brushes or rollers being made to rub or roll on a commutator fixed to the shaft
which carries the disc, the coils being connected to the said commutator in any
suitable manner.
The field magnets may be excited by a part or the whole of the current gene-
rated in the ring or rings of bobbins; being made to pass through them, or they
may be excited from an external source, or they may consist of permanent
magnets.
The coils and field magnets may be wound by the ordinary insulated wire but
by preference they are wound with square or angular copper wire suitably insulated
with cotton, silk or otherwise.
In this way I am able to wind a given weight of metal in a smaller space than
when round wire is used, this being an important feature in this Invention.

page_text: I pass a greater part of the wire of the coils through the magnetic field than has
previously been done by means of the specially shaped pole pieces of the field
magnets and I obtain an electrical advantage in winding this or other forms of
electric machines with wire of a square or angular section.
Having now described the nature of the said Invention and in what manner the
same is to be performed, I declare that I claim :—
The novel arrangement or construction of the machine in the manner and for the
purpose or purposes set forth.
In witness whereof I the said Samuel Edmund Phillips have hereunto set my
hand and seal this Nineteenth day of September, in the year of our Lord,
One thousand eight hundred and eighty two.
S. E. PHILLIPS (L.S.)