AN IMPROVED MAGNETO-ELECTRIC ENGINE
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by François Verrue at the Office of the
Commissioners of Patents on the 25th October 1878.
FRANÇOIS VERRUE, Engineer, of 23, Boulevard de Strasbourg, at Paris (France).
"AN IMPROVED MAGNETO-ELECTRIC ENGINE."
In order that the action of my improved magneto-electric engine or machine may
be well understood, I will before describing its construction explain shortly the
principles on which it is based.
If there be taken a ring of soft iron divided into sections insulated magnetically,
and if these sections terminate at their ends in a widened part, and all be connected
together by pieces of caoutchouc, a solid ring will be formed. Each section by
having a copper wire wound thereon will form a true coil. By causing the
alternate poles of one or more magnets to pass before these coils, a current is
generated in each of the sections of which the ring is composed, which current
changes in direction each time that the coil is opposite the poles of the magnets.
Thus by properly connecting the wires of the coils which are fixed, the alternate
currents may be collected and may be advantageously utilized for producing the
electric light for example.
I will now proceed to describe the manner in which my improved magneto-
electric engine or machine is constructed. The parts of the engine are arranged on
a cast-iron frame; upon this frame two bronze drums are fixed. The coils are fitted
on these drums and form around them two distinct rings. They are composed of a
pair of flat parts or bars of soft iron, the copper wire being wound round them.
They are insulated from each other by pieces of caoutchouc of T form, the arms of
the T taking into recesses in the heads of the coils. The foregoing are the fixed.
parts of the engine.
The movable parts turn on a shaft upon which is keyed a bronze drum having
wide flanges on which the magnets are carried; these magnets are placed end to end
so as to form a distinct circle or crown around each of the rings of coils. The same
shaft carries the pulleys for driving the drum with its magnets. Lastly, the wires

page_text: are united to collectors which collect the currents. The engine can be worked for
tension or for quantity at will and with great facility.
The following are some of the advantages derived from my improved engine :-It
is of simple construction; all the parts being independent of each other allow of
prompt repair in case of need; it is easily transported, being of little weight. 5
There is considerable economy of motive power.

page_text: PROVISIONAL SPECIFICATION left by François Verrue at the Office of the
Comunissioners of Patents on the 25th October 1878.
FRANÇOIS VERRUE, Engineer, of 23, Boulevard de Strasbourg, at Paris (France).
"AN IMPROVED MAGNETO-ELECTRIC ENGINE."
In order that the action of my improved magneto-electric engine or machine may
be well understood, I will before describing its construction explain shortly the
principles on which it is based.
If there be taken a ring of soft iron divided into sections insulated magnetically,
and if these sections terminate at their ends in a widened part, and all be connected
together by pieces of caoutchouc, a solid ring will be formed. Each section by
having a copper wire wound thereon will form a true coil. By causing the
alternate poles of one or more magnets to pass before these coils, a current is
generated in each of the sections of which the ring is composed, which current
changes in direction each time that the coil is opposite the poles of the magnets.
Thus by properly connecting the wires of the coils which are fixed, the alternate
currents may be collected and may be advantageously utilized for producing the
electric light for example.
I will now proceed to describe the manner in which my improved magneto-
electric engine or machine is constructed. The parts of the engine are arranged on
a cast-iron frame; upon this frame two bronze drums are fixed. The coils are fitted
on these drums and form around them two distinct rings. They are composed of a
pair of flat parts or bars of soft iron, the copper wire being wound round them.
They are insulated from each other by pieces of caoutchouc of T form, the arms of
the T taking into recesses in the heads of the coils. The foregoing are the fixed
parts of the engine.
The movable parts turn on a shaft upon which is keyed a bronze drum having
wide flanges on which the magnets are carried; these magnets are placed end to end
The same
so as to form a distinct circle or crown around each of the rings of coils.
shaft carries the pulleys for driving the drum with its magnets. Lastly, the wires

page_text: are united to collectors which collect the currents. The engine can be worked for
tension or for quantity at will and with great facility.
The following are some of the advantages derived from my improved engine:-It
is of simple construction; all the parts being independent of each other allow of
prompt repair in case of need; it is easily transported, being of little weight.
There is considerable economy of motive power.