Jim_Mich
Is your rotationg icon a hint of how it all works?
Do you think something rolls on the inside surface?
Is it ok with you to ask these questions?
Gaining Force
Moderator: scott
re: Gaining Force
JB Wheeler
it exists I think I found it.
it exists I think I found it.
- ken_behrendt
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re: Gaining Force
Jim...
I like your new avatar or icon, however, I would have made one little change in it...I would have made it rotate CLOCKWISE. I note that the 8 weighted levers in it seem to have their pivots near the vertices of an OCTAGON...just as I suspect Bessler did with ALL of the weighted levers in his wheels.
I can think of an additional reason to "round out" the 8 flat sides of an octagon...SAFETY!
Remember that guy who examined the ascending side of the Kassel wheel and then grabbed onto it an was lifted several feet off of the floor? Well, imagine trying to grab a hold of a giant rotating octagon to either stop it or "ride" it. I think that one would risk serious bodily injury as the protruding vertices of the heavy rotating octagon came whipping around toward one's position!
Bessler's first pre-Gera prototypes were probably only a few feet in diameter and capable of reaching rotation rates up to 100 rpm's. Maybe he tried to stop one by hand and suffered a nasty injury that made him swear to himself that when he finally got around to making larger editions, he would give them a circular rim to make it easier to stop them.
This reminds me a little of those toy helicopers we had as kids. You put them on a handle and yanked a cord that reved up their rotors, then you squeezed a trigger on the handle to release the copter which would then rapidly ascend. After a couple hundred kids lost an eye from the tip of a rotor blade, they finally attached a thin, circular plastic rim to the tips of all of the rotor blades to keep them out of kids' eyes. I think Bessler was using a similar concept when he rounded out his octagonal drums.
ken
I like your new avatar or icon, however, I would have made one little change in it...I would have made it rotate CLOCKWISE. I note that the 8 weighted levers in it seem to have their pivots near the vertices of an OCTAGON...just as I suspect Bessler did with ALL of the weighted levers in his wheels.
I can think of an additional reason to "round out" the 8 flat sides of an octagon...SAFETY!
Remember that guy who examined the ascending side of the Kassel wheel and then grabbed onto it an was lifted several feet off of the floor? Well, imagine trying to grab a hold of a giant rotating octagon to either stop it or "ride" it. I think that one would risk serious bodily injury as the protruding vertices of the heavy rotating octagon came whipping around toward one's position!
Bessler's first pre-Gera prototypes were probably only a few feet in diameter and capable of reaching rotation rates up to 100 rpm's. Maybe he tried to stop one by hand and suffered a nasty injury that made him swear to himself that when he finally got around to making larger editions, he would give them a circular rim to make it easier to stop them.
This reminds me a little of those toy helicopers we had as kids. You put them on a handle and yanked a cord that reved up their rotors, then you squeezed a trigger on the handle to release the copter which would then rapidly ascend. After a couple hundred kids lost an eye from the tip of a rotor blade, they finally attached a thin, circular plastic rim to the tips of all of the rotor blades to keep them out of kids' eyes. I think Bessler was using a similar concept when he rounded out his octagonal drums.
ken
On 7/6/06, I found, in any overbalanced gravity wheel with rotation rate, ω, axle to CG distance d, and CG dip angle φ, the average vertical velocity of its drive weights is downward and given by:
Vaver = -2(√2)πdωcosφ
Vaver = -2(√2)πdωcosφ
re: Gaining Force
What on earth are you talking about???Remember that guy who examined the ascending side of the Kassel wheel and then grabbed onto it an was lifted several feet off of the floor?
re: Gaining Force
Roundness _might_:
1) allow fullest possible path for angular travel within confines of wheel
2) more efficiently (?) transfer rotational "push" force (rotationally) from any weight colliding with lever affixed to outer rims...???
1) allow fullest possible path for angular travel within confines of wheel
2) more efficiently (?) transfer rotational "push" force (rotationally) from any weight colliding with lever affixed to outer rims...???
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re: Gaining Force
Hmmm...interesting thoughts here. Round would be more aero dynamic, would it not? Say compared to an octagon.
There was the claim from, I believe, C. Wolff about the weights "falling on warped boards"...How do you think they were warped? Were they a curved type of warped, or a twisted type of warped? If they were twisted at about a 45 degree angle...a fan effect? Inside of an enclose area? Any thoughts on this?
Steve
There was the claim from, I believe, C. Wolff about the weights "falling on warped boards"...How do you think they were warped? Were they a curved type of warped, or a twisted type of warped? If they were twisted at about a 45 degree angle...a fan effect? Inside of an enclose area? Any thoughts on this?
Steve
Finding the right solution...is usually a function of asking the right questions. -A. Einstein
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Re: re: Gaining Force
Smoothness, no "sharp edges", remember?ovyyus wrote:What on earth are you talking about???Remember that guy who examined the ascending side of the Kassel wheel and then grabbed onto it an was lifted several feet off of the floor?
re: Gaining Force
There is no report of anyone being lifted several feet off the floor! Why don't we just say anything that comes to mind.
re: Gaining Force
This correct but exagerrated account comes from John Collins' book PM:AAMS and the Eyewitness Accounts section of this web site:
Joseph Fischer (1693 - 1742)
Draftsman, Illustrator, and Architect to the Emperor of Austria
Viewed the bi-directional wheel in 1721
"I then stopped the wheel with much difficulty, holding on to the circumference with both hands. An attempt to stop it suddenly would raise a man from the ground."
-Scott
Joseph Fischer (1693 - 1742)
Draftsman, Illustrator, and Architect to the Emperor of Austria
Viewed the bi-directional wheel in 1721
"I then stopped the wheel with much difficulty, holding on to the circumference with both hands. An attempt to stop it suddenly would raise a man from the ground."
-Scott