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#1
July 17th 09, 11:02 PM
posted to uk.rec.cycling
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Caged ball bearings
Did you know:
John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! tom -- No, Charlie, Tottenham Court Road is the Midlands. -- Lola, 'Kinky Boots' 
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#2
July 18th 09, 03:10 AM
posted to uk.rec.cycling
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Caged ball bearings
On Fri, 17 Jul 2009 23:02:31 +0100
Tom Anderson wrote: Did you know: John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! I knew about the bimetallic strip. According to Wikipedia he invented the caged roller bearing, not ball bearing.
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#3
July 18th 09, 05:27 AM
posted to uk.rec.cycling
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Caged ball bearings
Tom Anderson wrote in
rth.li: Did you know: John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! tom Who invented the ball bearing?
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#4
July 19th 09, 12:03 AM
posted to uk.rec.cycling
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Caged ball bearings
On Sat, 18 Jul 2009, Rob Morley wrote:
On Fri, 17 Jul 2009 23:02:31 +0100 Tom Anderson wrote: Did you know: John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! I knew about the bimetallic strip. According to Wikipedia he invented the caged roller bearing, not ball bearing. I slouch corrected. Although i don't really see how the two are different - once you have the idea of a caged roller bearing, isn't a caged ball bearing a trivial modification? tom -- No gods, no masters.
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#5
July 19th 09, 08:36 AM
posted to uk.rec.cycling
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Caged ball bearings
On Jul 17, 11:02*pm, Tom Anderson wrote:
Did you know: John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! tom -- No, Charlie, Tottenham Court Road is the Midlands. -- Lola, 'Kinky Boots' Are you Nobby's brother?
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#6
July 19th 09, 05:20 PM
posted to uk.rec.cycling
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Caged ball bearings
On Sun, 19 Jul 2009 00:03:38 +0100
Tom Anderson wrote: On Sat, 18 Jul 2009, Rob Morley wrote: On Fri, 17 Jul 2009 23:02:31 +0100 Tom Anderson wrote: Did you know: John Harrison, the clockmaker, invented them. I didn't. He also invented the bimetallic strip. What a terribly clever chap! I knew about the bimetallic strip. According to Wikipedia he invented the caged roller bearing, not ball bearing. I slouch corrected. Although i don't really see how the two are different - once you have the idea of a caged roller bearing, isn't a caged ball bearing a trivial modification? Apparently the first patent for ball bearings wasn't registered until 15 years after Harrison's death. I imagine the difficulty of manufacturing the balls had something to do with that.
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