The 19th Century Manchester Bipolar DC Dynamo

[feb_]

Hi,

Here is someone who built one.

https://www.modelenginemaker.com/index.php/topic,9323.0.html




feb_

[RhineX]

Hello everyone
it seems that some rotors of these 19th century generators do not have an iron core. Does this mean that the magnetic field is placed at a 90 ° angle with the generator wires, and only the magnetic field is cut?

[Ufopolitics]

Hello everyone
it seems that some rotors of these 19th century generators do not have an iron core. Does this mean that the magnetic field is placed at a 90 ° angle with the generator wires, and only the magnetic field is cut?

Hello RhineX,

Could you show the specific one you are referring to?

So far all the ones I have read about, do have a steel core...could be a steel wire ring, like the Gramme's Dynamo...

Regards 

Ufopolitics 

[RhineX]

Hello  Ufopolitics




The wires of the rotor are not placed in the iron core groove, so the magnetic field from NS will evenly pass through each wire. When the rotor rotates, the magnetic field cuts each wire. 

"The total current is generated by each wire" may be the meaning of the sentence in the patent. 

That's my two centers

[Ufopolitics]

Hello  Ufopolitics

The wires of the rotor are not placed in the iron core groove, so the magnetic field from NS will evenly pass through each wire. When the rotor rotates, the magnetic field cuts each wire.

"The total current is generated by each wire" may be the meaning of the sentence in the patent.

That's my two centers

Hello RhineX,

Please do not let the "grooves" distract you from seen the magnetic field and core magnetic circuit.

Grooves on the rotor armature came later on, it is just a better Industrial Design to contain the wires on the rotor, as to ease the production manufacturing at the time of winding...Motors and Generators.

But, there is no need to have grooves in order for magnetic field to circulate through iron at all.

However, all of these dynamos had a steel core, whether drum, ring or discs.

Regards

Ufopolitics