Raleigh on 7th street headed to JR’s
Darker area to the south is more clouds moving in
Interesting development involving a very different chain ring on a adult tricycle at JR’s — (as we know, you never know what might show up there)
After some research, it turns out that is a Hagen All Speed Expandable chain ring.
The small sprockets could be moved inward or outward to change gearing from a low gear to a high gear
The mechanism to do that is missing
The sprockets rode on a plate with a spiral channel machined into it outboard of the ring they are on
Spiral plate can be seen behind the red spider
To go to a higher gear there was a lever to pull as you pedaled and the sprockets rode up the spiral, and to go to a lower gear you back pedaled and operated the lever and the sprockets rode down the spiral
More info if anyone is interested Here.
Looks as though it (the chain ring) might wind up in California, someone from Eureka would like to try to restore it
When Spring clean-up gets closer, a new flood of interesting stuff may show up
Nice shot of Ray’s foot BTW 🙂