Friedrich Luling Magnet Motor

[dom444]

One thing else i have noticed he has a control lever with a knob i think what he is doing is lifting one set of blocks of the cam some how to chose what diction it will turn, has you can see in the film that it
first turns one way then turns the other as he engages one set of blocks or the other.

in other words one side is neutralized for one direction or both neutralized for off and the other for other direction, so far it all seems to fit what you see in the film in principle it is very simple but there are many variables timing gaps friction length of rotor steel plate etc.

[DaKrampus]

I fully agree that there are lots of parameters to take into account.
But dont forget that this movie was filmed on film, at  a certain fixed frame rate. so that it turning in one direction, then in the other could very well be an optical illusion. You see that quite often when the motor speed reaches the frame rate it seems to stop, and then move in the other direction when the  speed gets faster than the frame rate of the shutter speed of the camera.

I am still convinced that the magnets are inside heavy steel tubing..
Look at the first pic you posted.. in reply #19 
the spring is attached to what looks like a tube... in this tube next to the spring there is a window cut into the tube. what you see inside imho could be a cylinder type magnet. It is shielded by the pipe, AND by another steel plate that has a bend in it so it would really stop attraction at a given point.

If the magnets were where you put them.. they would be too week as they would have to be quite small to fit. And at the time ( in the 50s and 60s) there were no neodym magnets. so we are talking ferrit magnets at the best.

But again.. i am just speculating. I do not know and might be completely wrong.

Luc

[dom444]

this is the video at the 14 sec mark first goes one way then reverses its very clear to see

https://www.youtube.com/watch?v=G6cycmBwLb8

I think the magnets where Alnico magnets as used in small motor ignition systems

and you can see him using the lever at first when it was changing direction

at first i thought it was in the tube my self but when you run the film in slow motion it is all clear to see i am not sure why the cutouts are in the tube but you can see it is hollow.

you can not see where the spring is connected but safe to say it is connected to the arm running down to the blocks to pull the blocks back of the magnet as when the arm is forward the spring is stretched  when the arm is back it is not  this would also allow the cam link arm to follow the cam from how it looks.

you can see the magnets in the center of the blocks for a start they are shiny with rounded edges as an Alnico magnet would look

[dom444]

I actually think neodymium magnets would present a problem with being to strong pulling on the blocks and causing to much drag, you would then need a stronger spring as well could be counter productive.

he has a 4 rotter plate model on his desk and the one running is an 8 plate model.

[DaKrampus]

yes sir you are right for the direction change. thanx for pointing that out. the lever is very probable a distance lever to be able to stop and start the motor.
as for the magnets i am curious to see your firs tests..
luc