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Wire spoked car wheels?



 
 
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  #1  
Old November 18th 08, 05:03 AM posted to rec.bicycles.tech
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Default Wire spoked car wheels?

Does anyone know of books or web information about the details
wire-spoked car wheels?

I'm hoping for something like the intriguing details that appear in
the usual RBT debates about bicycle wheels.

Cheers,

Carl Fogel
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  #2  
Old November 18th 08, 06:05 AM posted to rec.bicycles.tech
jim beam
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Default Wire spoked car wheels?

On Mon, 17 Nov 2008 22:03:26 -0700, carlfogel wrote:

Does anyone know of books or web information about the details
wire-spoked car wheels?

I'm hoping for something like the intriguing details that appear in the
usual RBT debates about bicycle wheels.

Cheers,

Carl Fogel


what should this book contain? assertions that fatigue can be eliminated
from spoke materials with no endurance limit? that load calculations can
masquerade as strength calculations? that spoke tension should be "as
high as the rim can bear"? that tensiometer math needn't account for
spoke stiffness?

or is this book to be written by a real engineer that stayed awake in
class and gets it reviewed by other real engineers that stayed awake
also? because that would be revolutionary hereabouts.

  #6  
Old November 19th 08, 09:53 PM posted to rec.bicycles.tech
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Default Wire spoked car wheels?

On Mon, 17 Nov 2008 22:03:26 -0700, wrote:

Does anyone know of books or web information about the details
wire-spoked car wheels?

I'm hoping for something like the intriguing details that appear in
the usual RBT debates about bicycle wheels.

Cheers,

Carl Fogel


Aha! I'd forgotten this photo, which I mentioned last year

http://imageevent.com/dernysportuk/s...=1&n=1&l=0&z=4

Another weird wire circle or hoop inside the wheel, a much earlier
date, around 1900-1910.

Given the photo, some aerodynamic theory seems likely.

Cheers,

Carl Fogel
  #8  
Old December 9th 08, 02:51 PM posted to rec.bicycles.tech
havasuyahoo
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Default Wire spoked car wheels?

http://static.panoramio.com/photos/original/3166201.jpg this steam
tractor is in death valley. the wheels are radial laced and offset at
the rims like the old weinman a124 a129 this gives them more lateral
strenght. The weinman rims failed because the rim was too thin at the
spoke holes.The oldtimers have forgotten more than detroit has ever
known.
  #9  
Old December 9th 08, 03:01 PM posted to rec.bicycles.tech
Clive George
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Default Wire spoked car wheels?

"havasuyahoo" wrote in message
...
http://static.panoramio.com/photos/original/3166201.jpg this steam
tractor is in death valley. the wheels are radial laced and offset at
the rims like the old weinman a124 a129 this gives them more lateral
strenght. The weinman rims failed because the rim was too thin at the
spoke holes.The oldtimers have forgotten more than detroit has ever
known.


Isn't that radial lacing on the drive wheel a bad idea, only working because
of the overengineering?


  #10  
Old December 9th 08, 04:31 PM posted to rec.bicycles.tech
Chalo
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Posts: 5,093
Default Wire spoked car wheels?

Clive George wrote:

havasuyahoo wrote:

http://static.panoramio.com/photos/original/3166201.jpg

this steam
tractor is in death valley. the wheels are radial laced and offset at
the rims like the *old weinman a124 a129 this gives them more lateral
strenght. The weinman rims failed because the rim was too thin at the
spoke holes.The oldtimers have forgotten more than detroit has ever
known.


Isn't that radial lacing on the drive wheel a bad idea, only working because
of the overengineering?


Probably. The machine looks like it might predate cross-spoking.
Spokes that thick would be difficult to lace across each other
anyway-- there would have to be some offset at the hub flanges between
leading and trailing spokes.

1920s cars often used half-radial lacing, with tangential inboard
spokes and a larger bracing angle on the radial outboard spokes.

Chalo
 




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