[CR] Fwd: More Huret Jubilee Mysteries - Can Anyone Solve ?

(Example: Framebuilders:Brian Baylis)

References: <555893.43002.qm@web82206.mail.mud.yahoo.com> <4ABA9B8D.8090809@os2.dhs.org> <8CC0AB583CD3B3B-34C8-1934C@webmail-d080.sysops.aol.com>
To: <classicrendezvous@bikelist.org>
Date: Wed, 23 Sep 2009 18:38:12 -0400
In-Reply-To: <8CC0AB583CD3B3B-34C8-1934C@webmail-d080.sysops.aol.com>
From: <iamnofred@aol.com>
Subject: [CR] Fwd: More Huret Jubilee Mysteries - Can Anyone Solve ?


The small nut inside the DO was there to lock in the DO to allow the derailleur to pivot freely.

?

In overcast 80 degree lovely riding weather

Gary Smith

TLC for Bikes

Raleigh NC

-----Original Message----- From: John Thompson <johndthompson@gmail.com> To: Classicrendezvous@bikelist.org Sent: Wed, Sep 23, 2009 6:05 pm Subject: Re: [CR] More Huret Jubilee Mysteries - Can Anyone Solve ?

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