Machines.
Year: 1889

page_text: Date of Application, 25th Jan., 1889
Specification Accepted, 9th Mar., 1889
Machines.
We, ISAAO TILLMAN DYER, PETER FISH, and REBECCA CHARLOTTE FISH, of the
City of Chicago, in the County of Cook, and state of Illinois, United States of
America, do 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 :-
This invention relates to the class of electric machines used for transforming
mechanical work into electricity.
The object of the improvements is to provide a machine of the class referred to,
having a much greater generating capacity than other dynamo-electric machines
of the same size, thereby affording a very complete machine capable of generating, in
a given time, a much larger quantity of electricity than other machines of its size.
The invention consists in a dynamo-electric machine having two sets of magnets
and movable armatures, one within the other; and it further consists in details of
construction and combinations of parts.
In the drawing, Figure 1, is a sectional plan view of our improved machine the
sectional portion being taken where the broken line 1-1, is shewn to extend in
Figure 2. Figure 2 is a side elevation of the same, partly sectional, the sectional
portion being taken where the broken line 2-2 is shewn to extend in Figure 1.
3"
A, is the frame or supporting base of the machine, provided near opposite ends with
pillows B for the bearings of a stationary shaft which we prefer to make hollow.
C, is a magnet either of the permanent kind or an electro-magnet as shewn, the
poles N and S, being on opposite sides of the shaft. A sleeve / surrounds the shaft r
and is stationary thereon; between the poles of the magnet C, and carries radial
arms i rigidly supporting the opposite poles N and S₁ of a magnet C', (which,
as in the case of the magnet C, may be permanent as shewn, or an electro-magnet.)
D, is a rotary armature, comprising a hollow cylinder of soft iron, wound with
insulated wire, and supported around the shaft adjacent to the poles of the magnet U₁,
from loose sleeves F and F1, on the shaft near its opposite ends, by arms fl and fi
projecting from the sleeves near their inner ends and secured to the ends of the
armature, where by rotation of the sleeves F and F which is produced by power
applied to a pulley E¹; on the sleeve F, rotates the armature D, in front of the
poles N and S.

page_text: A similar armature D' is supported within the armature D, from loose sleeves H
and H, extending through the sleeves F and FI, around the shaft r, from arms
and h³, projecting from the inner ends of the sleeves toward the adjacent ends of the
armature D' to which they are secured, rotation of the sleeves H and H', to actuate
the armature connected with them, being effected through the medium of a pulley E,
secured on the sleeve H between the pulley E' and pillow B.
The other parts of the machine, as the commutator and the brushes J, and their
connections, are the same as in other dynamo-electric machines, and are not therefore
herein shewn and described in detail.
To actuate the machine, power is applied to the pulleys E and E' to rotate them in
the same or opposite directions, either being equally effectual, and through them the
armatures D and D', whereby electricity is produced by each set of generators and
led off in the usual manner for use.
Any of the usual means, such as fans, may be provided to counteract the heat
developed by the rapidly succeeding magnetizations and demagnetizations of the
armatures in motion.
Having thus particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what wo
claim, is:―
1. In a dynamo-electric machine the combination of two sets of magnets and
movable armatures, one set within the other, substantially as described.
2. In a dynamo-electric machine in combination with the frame A, a stationary
shaft r, a magnet C having its poles on opposite sides of the shaft, a magnet C,
secured on the shaft between the poles of the inagnet C, and movable armatures D
and D', supported from the shaft and actuated, respectively, in front of the poles of
the magnets C and C₁ substantially as described.
3. In a dynamo-electric machine, in combination with the frame A, a stationary
shaft r, a magnet C, having its poles on opposite sides of the shaft, a magnet Ci,
secured on the shaft between the poles of the magnet C, and hollow cylindrical rotary
armatures, D and D, supported one within the other around the shaft and actuated,
respectively, in front of the poles of the magnets C and C³, substantially as described.
4. In a dynamo-electric machine, in combination with the frame A, a shaft r, rigidly
supported on the frame, a magnet C, having its poles on opposite sides of the shaft, a
magnet, secured on the shaft between the poles of the magnet C, loose rotatory
sleeves, F and F, near opposite ends of the shaft carrying between them a hollow
cylindrical armature D), surrounding the shaft and magnet C, and extending between
the poles of the magnet C, and loose rotatory sleeves H and H', near opposite ends of
the shaft, carrying between them a hollow cylindrical armature D', inside the
armature D, surrounding the magnet C, substantially as described.
5. In a dynamo-electric machine, in combination with the frame A, a shaft rigidly
supported on the frame, a magnet C, having its poles on opposite sides of the shaft, a
magnet C, secured on the shaft between the poles of the magnet C, loose rotatory
sleeves, F and F, near opposite ends of the shaft, having arms and f¹, carrying
between them a hollow cylindrical armature D, surrounding the shaft and magnet C,
and extending between the poles of the magnet C, and loose rotatory sleeves H and H²,
extending through the sleeves, F and F, on the shaft, and having arms h and h³,
carrying between them a hollow cylindrical armature D', inside the armature D
surrounding the magnet C¹ substantially as described.
1000