A SQUARE MAGNETIC RAIL -- ROTOR 360 ROTATION

[TinselKoala]

They act as "secondaries" to the "primary" formed by the main power coil. There is a large current at low voltage induced in these 3-turn windings. The mag field from that current biases the armature to start turning in one direction.

Of course, that's just a guess, on my part.

[gyulasun]

Hi Wattsup,

I think such motors are called shaded pole motors.  The thick copper wire constitutes a one turn coil with its ends shorted and the current induced in this one turn coil delays the phase of  the magnetic flux in that part of the pole enough to provide a rotating field.

See this link: http://en.wikipedia.org/wiki/Shaded-pole_motor

rgds,  Gyula

PS,  you asked the same question one year ago and I also answered it..., see here:

http://www.overunity.com/index.php?topic=2386.msg68442#msg68442

[mscoffman]

Hi Wattsup,

I think such motors are called shaded pole motors.  The thick copper wire constitutes a one turn coil with its ends shorted and the current induced in this one turn coil delays the phase of  the magnetic flux in that part of the pole enough to provide a rotating field.

gyulasun is correct. These copper circuits constitute an AC magnetic phase delay. They help
during startup to get the rotor to rotate in the proper direction. You would not want your clock
or fan running backwards would you?...the motor itself generally can run backwards.

:S:MarkSCoffman

[magnetman12003]

Hi Guys,

I am building this and going to try one of my box magnet rails on the floor to power it in event I cant get the large ring magnet and piston magnet to work. Plan to mount all on a wood sawhorse.

The fellow who posted it said it worked for 3 days until it was destroyed.  Another fellow tried replicating it but Ihe did not make it as illustrated in the video. Notice there is no hand pumping on the bike wheel. Look at the bike wheel "SHADOW" area near the top in his last clip..Right after   "She left me the next morning"      The  setup is self powered.

Hey --LIGHT -- you have some nice powerful magnetic box rails made already. Give it a try.  All you need is two ring magnets and a bike wheel or flywheel , a fiberglass rod, and some fittings.   McMaster - Carr is where I get all my odd parts.  They have an on line catalog.

Tom


http://www.youtube.com/watch?v=XKtIsrc-LHs

[magnetman12003]

Hi Guys,

I figure this might be how it should work.

One large ring magnet is laying on the floor. Its not 2 ring magnets as illustrated. My mistake I am now correcting.

The centerpoint of this ring magnet does not have much magnetic energy to resist the gravity fall of the piston magnet. In this case the swing of the offset flywheel forces the piston magnet to the left side and it uptravels.

Tom