Jerry Ward wrote:Can you provide some detail on the white oak bands? How are they formed and what keeps them tight?
...the answer from S.
"The hoops are made with the same basic green-woodworking (of white oak) technology as the pitchforks and myriad other household objects-splitting, hewing, shaving, scraping,etc.
The goal of all coopering is to make conical arches of tapered and radially beveled staves, held tightly together by unstretchable hoops driven down on the cone.
The hoop and the taper are usually judged so friction alone will hold the hoop in place, but then they are often nailed or pegged in place anyway. I use walnut pegs. What keeps the hoop tight, ultimately, is maintenance...the hoops can always be driven up tighter, or replaced with slightly smaller ones. The nails or pegs have to be pulled and replaced, of course."
In my first post I've linked to the pitchfork
thread that pictures most of the 'green woodworking techniques' mentioned above.
One thing that I notice he doesn't mention in this answer is that the hoops are completed and joined into a circle of the correct diameter and THEN driven on to the cone.
feel free to ask more questions....