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Discussion in 'Antique Bicycles Pre-1933' started by dnc1, Nov 13, 2017.
Thanks for posting everything. This isxa great thread.
You're welcome @nycet3.
It's a very niche subject I know, but of historical interest I guess.
Hopefully some light may be shed on the subject one day.
No apologies necessary @filmonger.
Thankyou for taking the time to do a little research, much appreciated.
Just found this US patent, number 676562A, granted on 18th. June, 1901, to a Mr Jens Henri Langgaard of Liverpool, England.....
Sadly, close but no cigar!
The patent is for a segmented cork insert, but without the metal internal rod.
I've found another US patent, number 578134, granted on
March 2nd. 1897, to a Mr. J.A. Burton of Skaneatles, New York.
Again with segmented cork, but this time with a spring running through the segments.
This makes sense, as at least have a fighting chance of fitting them!
Check out this kickstarter for a modern version of the cork insert, company based in Ireland! https://www.kickstarter.com/projects/658749419/b-wheel-bicycle-wheel-inner-tube-replacement-techn
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