A friend of mine is an accomplished blacksmith, if anyone has some detailed pics of bare cranks I'll see if I can get him to weigh in.
On May 12, 2005, at 10:13 AM, StuartMX4@aol.com wrote:
> I am relieved in a way that people more informed than I are unable to
> fathom
> out how the Duprat cranks were made. I too looked at an unplated pair
> expecting to find joints but found none. Presumably the slot across
> the crank end
> started life as a hole large enough to allow a drill down and was
> reforged to
> final shape. As I am of Cornish blood, I choose to believe that it was
> forged
> by Breton piskies or nockers. All the same, I would welcome a more
> rational
> explanation.
> Stuart Tallack in springtime Sussex
Gene Powell
Rad Finishes
Portland, OR