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A Motion Machine

 
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Kirk
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PostPosted: Sat Mar 03, 2012 4:21 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

amazing
the machine I am prototyping uses a pendulum as the prime mover



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jim_mich
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PostPosted: Sat Mar 03, 2012 5:26 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

Daan wrote:
why was the axel 8 in in dia , why was it 6 ft long when only 18 in of the axel was used for the wheel .

Let's see... subtract 18 inches from the six foot long axle leaves 4-1/2 foot. Then divide by two leaves about 2-1/4 foot of axle sticking out on each side of the wheel. This seems like about a right length for some strong guys, two at one end and two at the other end, to step under the axle and lift it upon their shoulders while moving the wheel from one support to the other support. It also gives enough axle length for the hammer mill lifting pins. And enough axle length for wrapping the lifting rope, which I figure wrapped about ten times in order to lift the weight up to the second story window. A smaller diameter axle would have lifted the weight slower, would have requires a longer axle length to accommodate the rope, but could have lifted a heavier weight. And a smaller axle would have been weaker. A bigger axle diameters would have lifted the weight faster, but the weight would need to be lighter.

So, an eight inch diameter six foot long axle seems about right when all factors are taken into account.




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AB Hammer
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PostPosted: Sat Mar 03, 2012 5:43 pm    Post subject: Re: re: A Motion Machine Reply with quote Report Post to Admin

daanopperman wrote:
AB Hammer ,
I do not disagree with your post , mine just came to late ,
what will the length of the pendulum be to be able to period at 26 rpm . Also , from a slight push by hand , what will cause the pendulum to be crancked for a complete cycle , it must complete a full 180 deg before it will swing in the intended direction , from the crank of the shaft the wheel will need to turn 180 deg else it will fall back to the rest position .


Lets not forget that Bessler's wheel didn't need the pendulums to run. If you are trying to use the jerk of a pendulum. You will have to time it to the required shift time, or it will not help. If you are trying this I would suggest a leaf spring or bow shaft type of pendulum to get a accelerated swing back for the shift position.



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rasselasss
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PostPosted: Sat Mar 03, 2012 6:11 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

Jim mich thats my point,we don't really know ,we can only guess,this is my reckoning of why the pendulums were "smoke and mirrors"..........firstly i guess the weight of the wheel at 3-4 cwt.minimum possibly more......the wheel is turning at less than one turn per second.....now if the pendulums weights were massively heavier than they look in the drawing which i think would stop it altogether (so i rule that out) ....and even if the pendulums were swinging together or in opposition to each other i can't truthfully see with such a slow speed of the wheel any purpose for them ......the only example i can think of at the moment is say a car,motorcyle,or bicycle wheel badly out of balance will only produce the sympthoms in the higher rev.s at such a slow speed that we are talking about it would be nearly negligable.



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PostPosted: Sat Mar 03, 2012 6:28 pm    Post subject: Reply with quote Report Post to Admin

Sorry i include a.b hammer and daaopperman in that reply.


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PostPosted: Sat Mar 03, 2012 7:03 pm    Post subject: Reply with quote Report Post to Admin

Kirk,i have tried the pendulum to produce energy ....i had little success.....could you show a drawing or give some detail on your project ,i do find the idea of a pendulum being a prime mover interesting.


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PostPosted: Sat Mar 03, 2012 7:17 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

will post a video soon


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murilo
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PostPosted: Sat Mar 03, 2012 10:04 pm    Post subject: Re: re: A Motion Machine Reply with quote Report Post to Admin

Kirk wrote:
amazing
the machine I am prototyping uses a pendulum as the prime mover


One of the possible means to put 'on' and 'off' and 'lock' the peripheral weights or hammers, would be these opposite pendulums.
Best!
M


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rasselasss






PostPosted: Sun Mar 04, 2012 12:20 am    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

D/MAN,the only way i can visualise a device being moved /shifted within the "wheel"is.. if the axle is split like a car engine crankshaft and a conrod like device or lever doing the shifting ...the rest of the axle can still do work /lifting etc.....i can't see an inner and outer axle working ....how could it transmit what is needed one through the other or vice-versa and still do heavy work.....i'm interested in your suggestion and it set me thinking,maybe you have alternative thoughts which can help.... hope this makes sense to you.....Thanks.


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daanopperman
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PostPosted: Sun Mar 04, 2012 12:23 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

jim_mich ,

I can only think of one reason why the axel was 8 in in dia , and that is to guide poles or some sort of link from one side to the other of the wheel with the weights on their ends , it is the only way to stabilize them like in mt 70 ; 71 ; 72 , it is also the only way to get overbalance , to move both side weights in one direction , one closer and the other away from the axel .

rasselasss ,

If the pendulums were on the main shaft and driving the prime mover , the wheel could have been on two bushings riding on the main shaft but not connected to it , but to the weights by means of chain or cord , so it could have a constant speed and the main shaft a erratic rotation caused by the pendulums , but why would he use pendulums if the wheel was so heavy , he could have used flywheel inertia .


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rasselasss






PostPosted: Sun Mar 04, 2012 2:44 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

D/MAN,....that IS an interesting line of thought....i have always envisaged the wheel "keyed" to the drive shaft and not running separate ...it puts a different aspect to the wheel and deserves consideration.....i 'll have to ponder this.....it would be much simpler that a crank spliting the shaft ...Thanks for the imput.


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rasselasss






PostPosted: Mon Mar 05, 2012 2:56 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

D/MAN,i looked at the idea of the wheel rotating freely on its own bearings with the shaft providing an unknown mech.to enable the wheel to rotate....the friction of the wheel alone will not produce work at the work end of the shaft(maybe your thoughts are different to mine on this or i just can't see it)...For illustration only i cold bent a spare shaft on my set-up (its not completely true ,running between vee-blocks but good enough for illustration)the 360 degree throw of the crank would equal my weight shift total movement on the spokes required to give rotation....on the shaft end i attached a simple lever to simulate Bessler's drawing of the pendulum attachment....the advantage i see is the wheel and lever at shaft end can be adjusted to suit the crank throw to his unknown shifting mech.....if my own ideas fail i'll look at this in more detail....D/MAN or anyone if you have any imput i'm very gratefull its only by collusion and sharing that Bessler's mystery will be solved...Thanks.





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PostPosted: Mon Mar 05, 2012 3:11 pm    Post subject: Reply with quote Report Post to Admin

I should have added the small (pendulum)lever at the shaft end requires quite a bit of effort to move the wheel with the attached rod............i can not see it" driving "unless the lever is a lot longer and a lot of modification ...i still see it as "driven".


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daanopperman






PostPosted: Mon Mar 05, 2012 6:40 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

rasselass ,

In your drawing , i see the small arm with a rod pivoting on it's end , for now I see just a crank shaft , but rig a pendulum onto that little shaft and try to turn the wheel so the pendulum is driven , get a nice easy speed going and slow the wheel down/ speed it up just a fraction , the pendulum want's to swing at it's natural frequency wich will cause the wheel to stop dead at the pendulums apex , unless you have a variable rod to compensate for different speeds of the wheel .

In the loose wheel arrangement the wheel is tethered to the shaft via strings via the mechanisms , it is just floating , like in the Keeny Wheel , it is able to run for very short periods faster or slower than shaft speeds .


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rasselasss






PostPosted: Sat Mar 10, 2012 7:47 pm    Post subject: re: A Motion Machine Reply with quote Report Post to Admin

I tried "tying"the weights in tandem with simple fixed levers...12-6 o'clock..3-9 o'clock thereby only needing a linear straight cam at 6 o'clock -which i used 3/16"perspex knife edged at the contact surface where it pushes the guide pins up to the overbalance position ......i could not induce motion........I am looking at what D/MAN said about the pendulum effect at the shaft end also a dumb-bell type weights at the other shaft end....possibly the timing of of one.other or both could be fixed to induce overbalance and by the fitting of a ratchet or clutch so they only do something when needed(driving and not driven just a push to do the necessary) and do not add to the problem...needless to say any thoughts are welcome ....i'll have to think about this and i'll press on in a week or so and show a "sketch"......D/MAN although i heard of the Keely wheel i have never seen a working example ......Thanks for the idea.


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