A Construction of Dynamo Electric Machines in Combination with Fly Wheels of Motors.
Year: 1898

page_text: Date of Application, 20th July, 1898
Complete Specification Left, 30th Mar., 1899-Accepted, 2nd June, 1899
PROVISIONAL DILUITIVATION.
A Construction of Dynamo Electric Machines in Combination with
Fly Wheels of Motors.
I, LEON MARIE JOSEPH CLEMENT LEVAVASSEUR, Engineer, of Suresnes, in the
French Republic, do hereby declare the nature of this invention to be as follows:--
This invention relates to a construction of dynamo electric machines in com-
bination with flywheeds of motors, as I shall describe referring to the accompany-
ing drawings.
rig. is an elevation of the whole of a flux commutator of which Figs. 2, 3 and
4 are respectively a side view, an end view, and a plan.
Fig. 5 shews one of the plates of which the flux commutator is made up these
being put together as shewn in Figs. 6 and 7.
Fig. 8 is an elevation shewing how the plates are connected.
Fig. 9 is a section of the fly-wheel rim with the flux commutator fixed on it.
Fig. 10 is an elevation of one of the arches adjoining the fly-wheel.
Fig. 11 is an end view shewing the two arches.
Fig. 12 shews the bundle of plates belonging to the elementary machines mounted
on the arches.
Figs. 13, 14, 15 and 16 shew details of the bundles of plates, carried on the
arches, also the inducing and induced coils.
Fig. 17 is a side view of part of one of the arches with the elementary machines
on it, and the flux commutators on the fly wheel.
Fig. 18 is an elevation and Fig. 19 is a vertical section of the fly-wheel and the
arches with the elementary machines.
The flux commutators are fixed on the fly wheel B of a steam engine or other
motor. They consist of a stirrup A of steel or other metal having flanges a by
which they are fixed on the fly-wheel. Each stirrup A carries a bundle of thin
plates C bent together and annealed. The bending is effected as shewn in Figs. G
and 7; on a base bare placed the plates which are cut to different lengths, and
they are clamped between band a cover c by bolts eel; the end parts of the plates
are clamped between pieces f and g and fi and g' by bolts j and j' and are then
raised by means of a lever k being then brought into the bent condition shewn
in Fig. 7 in which position they are held by a bolt h. In this condition they are
annealed which takes out all spring so that the plates retain their bent form after
being released. They are fixed in the stirrups A by two bolts rr¹ and two bolts tt
passing through the flanges 11, being insulated from the faces a¹ and a of the
stirrup by paper or other insulating material interposed. The bolts rr tt¹ need
not be insulated as they cannot form circuits for the flux, for such circuits are
parallel to the lines of force of the flux. The flux commutators thus constructed
are fixed on the fly wheel rim by bolts m m¹ as shewn in Fig. 9, being insulated
by paper wrapped round these bolts, or otherwise.
The arches E are fixed one on each side of the fly wheel. When the wheel re-
volves in a well, each arch rests on four feet 001 on the sides of the well. As

page_text: each arch is an exact semicircle the two can be turned at once when they are put
together.
The elementary machines consist each of a bundle of plates G wound with the
inducing coil and of two parts H H wound with one or more induced coils h h³.
The bundle of plates constituting the magnetic circuits of the elementary
machines are carried by non magnetic pieces 1 of T section fixed by feet J of cast
iron or other suitable metal. The pieces I besides carrying the plates HH' serve
also to connect the two arches E. The plates G are fixed by bolts K K.
The apparatus works as follows:-
If a continuous current is passed through the inducing coils G₁ a flux of force
is created which is closed by traversing the flux commutators and the induced
coils h h; so that the commutators, as they move, induce currents in the coils.
As the number of elementary machines on the arches may vary, so the power
of the apparatus may vary, and the elementary machines by their attraction re-
lieve more or less of the weight of the fly wheel, being always placed so as to
attract upwards. The elementary machines may be so placed relatively to the flux
commutators that polyphase currents may be produced. By means of a commu-
tator on the flywheel shaft continuous currents may be collected, and this may be
only for a portion of the currents generated, sufficient for excitation.
Dated this 20th day of July 1898.
ABEL & IMRAY,
Agents for the Applicant.
A Construction of Dynamo Electric Machines in Combination with
Fly Wheels of Motors.
I, LEON MARIE JOSEPH CLEMENT LEVAVASSEUR, Engineer, of Suresnes, in the
French Republic, do hereby declare the nature of this invention and in what man-
ner the same is to be performed, to be particularly described and ascertained in
and by the following statement:---
This invention relates to a construction of dynamo electric machines in combi-
nation with flywheels of motors, as I shall describe referring to the drawings
accompanying my Provisional Specification.
Fig. 1 is an elevation of the whole of a flux commutator of which Figs. 2, 3 and
are respectively a side view, an end view, and a plan.
Fig. 5 shews one of the plates of which the flux commutator is made up these
being put together as shewn in Figs. 6 and 7.
Fig. 8 is an elevation shewing how the plates are connected.
Fig. 9 is a section of the flywheel rim with the flux commutator fixed on it.
Fig. 10 is an elevation of one of the arches adjoining the flywheel.
Fig. 11 is an end view shewing the two arches.
Fig. 12 shews the bundle of plates belonging to the elementary machines mounted
on the arches.
Figs. 13, 14, 15 and 16 shew details of the bundles of plates, carried on the
arches, also the inducing and induced coils.
Fig. 17 is a side view of part of one of the arches with the elementary machines
on it, and the flux commutators on the flywheel.
Fig. 18 is an elevation and Fig. 19 is a vertical section of the flywheel and the
arches with the elementary machines.
The flux commutators are fixed on the flywheel B of a steam engine or other

page_text: by
motor. They consist of a stirrup A of steel or other metal having flanges a
which they are fixed on the fly-wheel. Each stirrup A carries a bundle of thin
plates bent together and annealed. The bending is effected as shewn in Figs. 6
and 7; on a base b are placed the plates which are cut to different lengths, and
they are clamped between 6 and a cover by bolts ee; the end parts of the plates
are clamped between pieces ƒ and g and fl and g by bolts j and and are then
raised by means of a lever being then brought into the bent condition shewn
in Fig. in which position they are held by a bolt h. In this condition they are
annealed which takes out all spring so that the plates retain their bent form after
being released. They are fixed in the stirrups A by two bolts r¹ and two bolts t
passing through the flanges being insulated from the faces a' and a" of the
stirrup by paper or other insulating material interposed. The bolts rr tt' need
not be insulated as they cannot form circuits for the flux, for such circuits are
parallel to the lines of force of the flux. The flux commutators thus constructed
are fixed on the fly-wheel rim by bolts mm¹ as shewn in Fig. 9, being insulated
by paper wrapped round these bolts, or otherwise.
As
The arches E are fixed one on each side of the fly-wheel. When the wheel re-
volves in a well, each arch rests on four feet 001 on the sides of the well.
each arch is an exact semicircle the two can be turned at once when they are put
together.
The elementary machines consist each of a bundle of plates G wound with the
inducing coil G¹ and of two parts H H¹ wound with one or more induced coils hh',
The bundle of plates G constituting the magnetic circuits of the elementary
machines are carried by non magnetic pieces I of T section fixed by feet J of cast
iron or other suitable metal. The pieces I, besides carrying the plates H H serve
also to connect the two arches E. The plates G are fixed by bolts K K¹.
The apparatus works as follows:-
If a continuous current is passed through the inducing coils G¹ a flux of force
is created which is closed by traversing the flux commutators and the induced
coils h¹; so that the commutators, as they move, induce currents in the coils. .
As the number of elementary machines on the arches may vary, so the power
of the apparatus may vary, and the elementary machines by their attraction re-
lieve more or less of the weight of the fly-wheel being always placed so as to
attract upwards. The elementary machines may be so placed relatively to the flux
commutators that polyphase currents may be produced. By means of a commu-
tator on the fly-wheel shaft continuous currents may be collected, and this may be
only for a portion of the currents generated, sufficient for excitation.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is:-
:-
1. The construction of electric machines in combination with the fly-wheel of a
motor, substantially as described with reference to the drawings.
2. In an electric machine such as is above referred to, the flux commutators
comprising stirrups holding bundles of thin plates annealed, and means of securing
them on the rim of a fly-wheel, substantially as described.
3. The elementary machines comprising inducing and induced coils, arranged
on arches around the fly-wheel, substantially as described.
Dated this 28th day of March 1899.
ABEL & IMRAY,
Agents for the Applicant.