I know this may sound pretty nerdy but I was fascinated by the Blog Patent Pending, it has some great drawings from early bicycling patents and stories of technoloy development . Here are a few that caught my eye:
1. 1899 Pannier Patent
2. First Recumbent Bicycle Patent 1903
2. Bicycle Wheel, Rim, Spoke 1896
4. Roller Chain 1880
5. [...]
Read the complete post at http://ebent.wordpress.com/2008/03/03/early-bicycle-patents-blog/