The pattern in all the steel rims without smooth sidewalls from the bike boom that I have seen are stamped, not knurled. In knurling, the raised part of the pattern actually stands proud of the original surface. You can do this with stamping too, but the process is fundamentally different. I typically referred to the rims as "patterned sidewall." I believe the old "singing Mavics" that came on '70s Paramounts and the old alloy Fiamme's were truly knurled.
The definition of knurl is a bump or knob.
Steve Barner, who rode his white '74 Paramount with the knurled rims for the first time yesterday on a beautiful foliage-filled afternoon, Bolton, Vermont
> Date: Tue, 14 Oct 2003 20:22:32 -0400
> From: "swampmtn" <swampmtn@siscom.net>
> To: <classicrendezvous@bikelist.org>
> Subject: Re: [CR]Definition of Dimpling on rims?
>
> Hi Harvey et al,
>
> There's lots of different knurling tools with lots of different patterns
for
> different applications. The pattern on my Weinmann/Schwinn rims is
similar
> to some of the tools around my company's machine shop. And I can see how
> they could set the knurling tools to do rim sidewalls. I don't think it's
a
> stamped surface.
>
> Aldo Ross
> Middletown, Ohio
>
> ----- Original Message -----
> From: HM & SS Sachs <sachs@erols.com>
>
> > What Lynn Miller shows at the web site below is different, being on the
> braking surface. I've always called that "knurling," although that's
really
> stretching the machinist's term to fit a stamped surface.
> >
> > Any arbiters of truth out there, or just the usual suspects with strong
> opinions (like me)?
> >
> > harvey sachs
> > mcLean va
>
> >
> > Jerry,
> > > >
> > > > The dimples or reverse dimples, do they look like this? -
> > > > http://www.members.optusnet.com.au/
> > > >
> > > > These wheels are from my wife's Coventry Eagle mixte. These are 700C
> > > > clinchers. There is no name on them that I could find, so your
> reference
> >
> > > to
> >
> > >> > dimples made me wonder if these were also Weinmann rims. It is
> outfitted
> > >> > with Weinmann brake levers and side pulls.
> > >> >
> > >> > Thank you,
> > >> >
> > >> > P. Lynn Miller
> > >> > Sydney, Australia
> > >> > http://members.optusnet.com.au/
> > >> >
> > >> > ----- Original Message -----
> > >> > From: "Jerry Corcoran" <jerry@proactivesports.com>
> > >> > To: "CR List" <classicrendezvous@bikelist.org>
> > >> > Sent: Tuesday, October 14, 2003 7:33 AM
> > >> > Subject: [CR]Paramount Weinmann
> > >> >
> > >> >
> > >> > The recent threads on Paramount original equipment and Weinmann rim
> > >
> > >
> > > options
> >
> > >> > rang a bell with me. I have a "65 Paramount track bike with the
> > >
> > >
> > Weinmann
> >
> > >>> > sew-up rims that are dimpled or reverse dimpled on the outside rim
> wall.
> > >>> > Wouldn't these be considered road rims? Did Weinmann make a track
> rim?
> > >>> > Would that have been standard equipment on a '65 Paramount P 14?