18 Aug
2005
18 Aug
'05
2:26 p.m.
>>>> "der" == der Mouse <mouse
at rodents.montreal.qc.ca> writes:
> Sounds like all you're missing is Bristol
Spline. [...]
der> I don't think I've ever seen that, neither driver nor screw.
der> Perhaps they're more common on the European side of the pond? I
der> seem to recall Tony talking about them a lot.
Mine is in a Collins mil-spec radio, from around 1950. I think they
may be obsolete at this point.
> [...]; if you need to undo a Bristol spline screw,
you'll need the
> real tool.
der> The description makes it sound as though a flat-blade bit should
der> work, if it's the right width to fit snugly into a diameter of
der> the cylinder; it should fetch up against two of the splines, and
der> while it likely would bend them out of true, it seems it should
der> drive/draw the screw.
That sounds possible in principle. It may not work in practice; the
grooves are rather shallow, maybe 10-15% of the bit diameter.
paul