Jerome & Elizabeth Moos wrote:
> [the] Jubilee, I believe had different bodies for each DO type, with
> the tab for the stop actually incorporated into the body.
The one Jubilee I have here does not have a stop on the body, instead
using the familiar tabbed washers to accommodate different dropout types.
> The other strange thing about the Jubilee, and maybe other Huret
> RD's, is it usually came with a nut that threaded onto the pivot bolt
> from inside the DO. This was somewhat like the nut used by Simplex
> RD's. But in the case of Simplex the nut was used because the RD was
> primarily designed for Simplex DO's, even though Simplex RD's work
> fine on Campy and Huret DO's as well. Simplex DO's were unthreaded,
> so the nut inside the DO was the only way to secure the pivot bolt to
> the DO. But I'm pretty sure I've seen Jubilees with the nut, even on
> threaded Huret and Campy DO's. Anyone know the purpose of this?
This was also used on some Duopar units. The small, Allen-headed bolt threads into the back side of the mounting bolt, which is longitudinally split on the threaded section. The small bolt has a tapered head, which fits into a tapered recess on the back of the mounting bolt. When tightened, this spreads the mounting bolt, preventing it from loosening.
--
John Thompson (john@os2.dhs.org)
Appleton WI USA