IMPROVEMENTS IN MAGNETO-ELECTRIC · OR DYNAMO-ELECTRIC MACHINES
Year: 1879

page_text: LETTERS PATENT to John Fletcher Wiles, of Finch Lane, Cornhill, in the
City of London, for the Invention of "IMPROVEMENTS IN MAGNETO-ELECTRIC ·
OR DYNAMO-ELECTRIC MACHINES."
Sealed the 12th August 1879, and dated the 18th February 1879.
PROVISIONAL SPECIFICATION left by the said John Fletcher Wiles at the
Office of the Commissioners of Patents on the 18th February 1879.
JOHN FLETCHER WILES, of Finch Lane, Cornhill, in the City of London.
" IMPROVEMENTS IN MAGNETO-ELECTRIC OR DYNAMO-ELECTRIC MACHINES."
The Invention has for its object improvements in magneto-electric or dynamo-*
electric machines.
For this purpose instead of fixing either the magnets or armatures in position and'
causing the one or the other to revolve as heretofore I mount both the magnets and
the armatures on separate axes of motion so as to enable the armatures to be
revolved in one direction and the magnets in the other, whereby the same relative
speed of the parts as that now obtained may be produced whilst giving a slower
rotary motion to the axes on which the same are mounted. By these means I am
enabled to drive the machine direct from a steam engine or other motive power
without the intervention of any description of multiplying apparatus, although such
may be used if desired.
In carrying my Invention into effect I prefer to mount the steam cylinders and
the machine on the same base plate, and to drive the axes by cranks formed or fixed
thereon, and receiving motion direct from the engines so as to form a combined
machine of the entire apparatus.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Fletcher Wiles in the Great Seal Patent Office on the 18th
August 1879.
JOHN FLETCHER WILES, of Finch Lane, Cornhill, in the City of London.
"IMPROVEMENTS IN MAGNETO-ELECTRIC OR DYNAMO-ELECTRIC MACHINES."
The Invention has for its object.. improvements in magneto electric or dynamo
electric machines.
For this purpose instead of fixing either the magnets or armaturės rigidly in
position and causing the one or the other to revolve as heretofore, I mount both
the magnets and the armatures on separate axes of motion so as to enable the arma-
tures to be revolved in one direction and the magnets in the other, whereby the
same relative speed of the parts as that now obtained may be producer, whilst
giving a slower rotary motion to the axes on which the same are mounted.
In carrying my Invention into effect I prefer to mount the steam cylinders and
the machine on the same base plate, and to drive the axes by cranks formed or fixed
thereon, and receiving motion direct from the engines, so as to form a combined
machine of the entire apparatus.
And in order that my said Invention may be more clearly understood and
readily carried into effect, I will proceed aided by the accompanying Drawings more
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation partly in section; Figure 2 is a partial plan; and
Figure 3 is a cross section of a magneto-electric or dynamo-electric machine with
my-improvements applied thereto; and Figure 4 is a cross section of parts on the
line 1, 1, of Figure 1.
a, a, are magnets, commonly called field magnets, which are fixed upon the
shaft b, which latter is mounted with capability of revolving in bearings c, c¹³‚¨
carried by plummer blocks d, d, fixed to the framing e.
ff, are a series of armatures bolted or otherwise fixed to the cylinder or ring 9,.
carried by the disc h, which is fixed to the shaft i, which is mounted with capability:
of revolving freely in bearings j, j', carried by plummer blocks k, k, fixed to the
framing e.
C
The shaft b is grooved along that part which revolves within the bearing c, and
the wires a from the magnets a, a, are passed through such grooves to the commu-.
tator ; a ring b' is shrunk on the shaft b around the said grooves to form a suit-
able surface to work within the bearing c and to protect the wires passing through
the grooves. The shaft i is similarly formed and fitted at the part working within
the bearing to enable the wires f¹ from the arinatures f to be passed therethrough
to the commutator m. The said shafts b and i are, according to my Invention,
both rotated, but in opposite directions to each other, and I prefer, as indicated in
the Drawings, to drive each of such shafts by a separate steam cylinder n or o, both.
of which are, fixed upon the base plate of the machine..
The currents generated by the rotation of the armatures and magnets are conveyed
by wire brushes or collectors p, q, to wires r, 8.
By these means the same relative speed of the parts as that now obtained may
be produced whilst giving a slower rotary motion to the axes on which the magnets
and armatures are mounted; I am also enabled to drive the machine direct from a
steam engine or other motive power without the intervention of any description of
multiplying apparatus, although such may be used if desired.
When driven from an independent steam engine or other motive power, driving
pulleys may be substituted for the crank discs t, and such pulleys may be rotated
by straps or bands acting thereon. Other means of driving may however be

page_text: employed, but the arrangement shown in the Drawing is that which I prefer. If
desired a fly wheel may be fixed on each shaft b, i, or the crank discs t may be
made sufficiently large to answer the purpose.
Having thus described the nature of my said Invention and the node which I
prefer to employ in carrying the same into effect, I would have it understood that
what I claim is, mounting the armatures and magnets on separate shafts, and giving
rotary motion to such shafts in contrary directions to each other in lieu of, as here-
tofore, fixing either the armatures or magnets rigidly in position and giving rotary
motion only to the other.
In witness whereof, I, the said John Fletcher Wiles, have hereunto set my
hand and seal, this Eighteenth day of August, in the year of our Lord One
thousand eight hundred and seventy nine.
JOHN F. WILES. (L.S.)