Cracking the nut with Archimedes principal?

[raj]

For the first time in my thirty plus years of trying to find my wheel, I feel I am, just, about to crack the nut.

This, my first ever use of the Archimedes principle have given the nut-cracker???

Raj

[Grimer]

Please correct the spelling error in the title of the thread while you still have time.

(from a spelling Nazi. ;-)

[raj]

Terribly sorry, my dear Grimer.

I did notice the different spelling of 'principal and principle' soon after posting.

I then liked the pun between the two, and did not attempt to correct the spelling.

The title of my thread is, inadvertently, a question: Cracking the nut with Archimedes principal? That is principal what?

The answer is : principal principle! meaning main principle.

Now, I would like to add that I am still feeling that I have found the NUT CRACKer based on Archimedes principle, and I am just learning how to use it to crack the centuries old nut left behind by Bessler.

As per my usual way, I'll keep you all posted, with drawings and description when I can.

Raj

[raj]

Herein lies Archimedes principle that showed me the nut cracker to explode the elusive nut, once I know how to use it properly.

Raj

[triplock]

Raj
Just an aside, I've always liked the mechanical brutality of those timber cider presses, combined with the deftness of a 1/4 turn operation.

I also always marvelled at the hand carved threads.
Chris

[triplock]

Raj

Be careful when you analyze a screw jack because she is a very seductive mistress indeed. As is your wish, whether fruitful or not, you will get your nuts squeezed.

Chris

[raj]

Dear Chris,

Without any ado, here is my presentation, not so much for getting my NUT squeezed, but rather for crawling sideways on the wall.

This design is very easy to draw:

(1) is a vertical wheel on horizontal axle(2).
(3) are radial SCREWS/arms at 45 degrees intervals.
(4) are NUTS/weights resting/moving on (3).
(5) are fix boards/walls on either side of (1).
(6) are fix stands for (1) and (5).

Here the idea is to use the Archimedes principle to ALWAYS lifting the NUTS/weights at the 6 o'clock and 12 o'clock positions simultaneously, not by perpendicular force, but by LATERAL force, thereby reducing slightly the counter-torque on the ascending side.

As the wheel turns, from its overbalanced position in the drawing, the NUTS/ weights connect/press sideways against the side boards/walls which forces NUTS/weights to screw upwards nearer to axle on the ascending side at the 6 o'clock position and to screw upwards away from axle on the descending side at the 12 o'clock position, hopefully resetting NUTS/weights position every 45 degrees turn.

That's my current idea, for what it's worth.

Your comments???

Raj

[triplock]

Hello Raj

May I firstly suggest you look at the principles behind the scissor jack and work out why, when the crank handle is released, the load does not cause the lateral screw to unwind and so dropping the load.

Chris

[raj]

Hello Chris,
Just give me a link where I should look for the scissor jack principle.

Thanks
Raj

[triplock]

Just google screw jack mechanism Raj

Chris

[raj]

Chris,
That's what I have done for the past few days, checking on all sorts of screw jacks mechanism.

In fact, it's following my exhaustive search and understanding of screw jacks mechanism, that I am feeling convinced of my Archimedes Gravity Wheel concept. I have also carried out some minor concept testing.

Since the NUTS/weights are not moving up and applying their weight on a conventional ramp, it should make quite some difference to the upwards motion of the NUTS/weights as they are HELPED to screw upwards on the screws/arms gently by their unforced contact with the boards/walls, while their weight upwards are acting only on the wheel.

Raj

[triplock]

Raj
My gut feeling says the restriction will not force the side nuts in to this elevate one to centre and the other to noon.

But hey, I wish you all the luck in the World as you push this concept to its conclusion .

Would it be better to configure your design so that the nuts don't rotate, with the displacement achieved by turning the threaded bar.

Chris

[raj]

Chris,
The central idea here in this design is NOT to elevate the NUTS/weights to the CENTRE and/or to NOON. This is TOO MUCH to expect!

The idea is to help screw/move NUTS/weights a few threads as they rub/ROLL against the side boards/walls, ONLY slightly inwards at the 6 o'clock and slightly outwards at the 12 o'clock positions, just enough to reset themselves to their original overbalanced starting position as shown in the drawings, for continued rotation of wheel.

I feel that this change of NUTS/weights position is very feasible.

Raj

[triplock]

Raj
Unwrap the threads to show tiny ramps, and place those ramps at the areas you want to slightly elevate the nuts as the wheel turns . Do you suppose the wheel will be able to push those nuts up the ramp and continue to rotate thru unimpeded ?

Chris

[raj]

Chris,
I feel a difference in the use of a ramp

A ramp is a separate accessory. The weights must first get on the ramp and off/leave the wheel, in order to be PUSHED upwards on UPWARDS slope/gradient.

In my design, the NUTS/screws NEVER leave/get off the screws/arms and the wheel, but only change position Horizontally (NOT vertically) as the wheel rotates past/between the side boards/walls.

Anyway that's how I see it.

Raj