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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Belt drive
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<blockquote data-quote="timetraveller" data-source="post: 12144" data-attributes="member: 456"><p>A few years ago at the French Rally when it was just south of Dieppe I spoke to one of our French members who had solved this problem a different way. He had used a small section belt, being driven from behind a multi plate clutch to drive a small alternator in the same place as a normal dynamo. The cover for the primary drive was a one-piece moulding which covered the clutch as well as the belt drive. This was to keep dirt out rather than oil in as there was no oil to be kept in. One bolt released the whole thing. I have no idea of the output from the small alternator but it is possible that a larger section belt could be incorporated to drive a more powerful generator.</p><p> </p><p>I use double sided belts to drive domes to cover telescopes, up to 6.4 m (21 feet) diameter, and to drive telescopes where arc second accuracy is required. From my experience I do not think that a double sided belt would be happy if only one tooth at a time was used to drive a generator, in the manner of the original Vincent drive system. The trick would be to use a small idler pulley, or two, so that a short belt covering several teeth drove the generator but fitting that into the available space would take some design time and might even be impossible.</p><p> </p><p>As this Forum is in English that might deter the Francophones among us from contributing to this but if the gentleman in question is prepared to try out his written English on us then there is information out there to solve your problem.</p></blockquote><p></p>
[QUOTE="timetraveller, post: 12144, member: 456"] A few years ago at the French Rally when it was just south of Dieppe I spoke to one of our French members who had solved this problem a different way. He had used a small section belt, being driven from behind a multi plate clutch to drive a small alternator in the same place as a normal dynamo. The cover for the primary drive was a one-piece moulding which covered the clutch as well as the belt drive. This was to keep dirt out rather than oil in as there was no oil to be kept in. One bolt released the whole thing. I have no idea of the output from the small alternator but it is possible that a larger section belt could be incorporated to drive a more powerful generator. I use double sided belts to drive domes to cover telescopes, up to 6.4 m (21 feet) diameter, and to drive telescopes where arc second accuracy is required. From my experience I do not think that a double sided belt would be happy if only one tooth at a time was used to drive a generator, in the manner of the original Vincent drive system. The trick would be to use a small idler pulley, or two, so that a short belt covering several teeth drove the generator but fitting that into the available space would take some design time and might even be impossible. As this Forum is in English that might deter the Francophones among us from contributing to this but if the gentleman in question is prepared to try out his written English on us then there is information out there to solve your problem. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Belt drive
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