Thanks Phil, I'll look into this. By now you will have realised that my practical skills are somewhat limited...
I would still be interested in knowing whether a job-specific tool is available for bicycle frames, though.
Neil Foddering Weymouth, Dorset, England
> From: philcycles@sbcglobal.net
> Date: Tue, 6 Oct 2009 09:14:37 -0700
> To: classicrendezvous@bikelist.org
> Subject: Re: [CR] Measuring bike frame angles
>
>
> On Oct 6, 2009, at 8:44 AM, Neil Foddering wrote:
>
> > I have tried, without success, to measure the frame angles on my 1930s
> > and 40's bikes; does anyone know whether a purpose-made tool is
> > available to do this (preferably idiot-proof)?
> >
> >
> > Neil Foddering
> >
>
> A couple of short pieces of wood or metal strip with a pivot to make a
> protractor and relieved at the pivot to clear the lugs. You can buy
> such a tool with angles marked at the hardware store but it needs
> shortening and modifying to clear the lugs.
> Phil Brown
> Easy peasy in Oakland, Calif.