Re: [CR] modern KOF fillet brazed builders

(Example: Production Builders:Tonard)

From: <gpvb1@comcast.net>
To: Hilary Stone <hilary.stone@blueyonder.co.uk>, Steve Leitgen <sleitgen@charter.net>
Subject: Re: [CR] modern KOF fillet brazed builders
Date: Sat, 03 Dec 2005 22:05:35 +0000
cc: classicrendezvous@bikelist.org

Actually, zero were ever silver-soldered. ;-)

(There's that term again.... Oh no...).

For their silver-brazed fillet joints, what percent silver content was the wire? Does anyone know, for any fillet-brazed frame that had silver-content wire used?

When I was silver-brazing, I used EF45, which was a 45% silver wire (and had Cadmium in it, so was somewhat toxic...).

Greg Parker not currently soldering any plumbing pipes, or brazing any bike frames, in Ann Arbor, Michigan


-------------- Original message --------------


> Quite a few frames have been built over the years lugless with silver

\r?\n> solder. The early Thanet Silverlights were built lugless - Thants had less

\r?\n> trouble with joints coing undone than tubes tearing especially where the

\r?\n> seat tube and down tube were joined to the bottom bracket shell - this is

\r?\n> quite different to the standard BB shell method of attachment. In the 1980s

\r?\n> Ernie Janes who had built many of the early frames at Thanets showed me a

\r?\n> conventional frame built lugless with silver - it was one of several he had

\r?\n> built for himself and I think his son. The fillets were much smaller than on

\r?\n> a conventional fillet brazed frame.

\r?\n> And about four or five years ago I bought a 753 aero tubed Raleigh road

\r?\n> frame - this was built lugless with silver as there were no suitable lugs

\r?\n> and its fillets are a similar size to the ones I have seen on early

\r?\n> Silverlights and on Ernie's frame. It is certain that Raleigh with its close

\r?\n> links with Reynolds and the development of 753 that the silver solder used

\r?\n> was suitable for the job. Only about 50 sets of the 753 aero tubing were

\r?\n> made according to Mike Mullett who worked at Raleigh SPD operation in the

\r?\n> late 70s when the tubesets were made - and Raleigh only used about 25 of the

\r?\n> sets... At least one set has been built up by Argos here in Bristol I

\r?\n> believe.

\r?\n>

\r?\n> Hilary Stone, Bristol, England

\r?\n>

\r?\n>

\r?\n> > From: gpvb1@comcast.net

\r?\n> > Date: Sat, 03 Dec 2005 19:43:32 +0000

\r?\n> > To: Steve Leitgen

\r?\n> > Cc: classicrendezvous@bikelist.org

\r?\n> > Subject: Re: [CR] modern KOF fillet brazed builders

\r?\n> >

\r?\n> > What percent silver was your wire? What brand and part number? How did you get

\r?\n> > your miters good enough to use silver? Without any lugs, the gaps would be

\r?\n> > even more critical. How did you build a fillet with high-silver-content wire?

\r?\n> > That sounds a bit fishy to me, unless the silver content was actually quite

\r?\n> > low.... Professional framebuilders, what say you?

\r?\n> >

\r?\n> > Greg Parker

\r?\n> > Ann Arbor, Michigan

\r?\n> >

\r?\n> > -------------- Original message --------------

\r?\n> >

\r?\n> >> Seeing as how I have a fillet silver brazed Columbus KL frame I did 25 >

\r?\n> >> years ago still in my basement the answer would be yes, you can fillet

\r?\n> >> braze with silver. If I remember right you need a higher sliver content

\r?\n> >> brazing rod. The stuff was thicker and didn't flow as well as standard

\r?\n> >> 60-40. It did flow smoother than brass. Less cleanup filing. Also had a

\r?\n> >> lower flow temp so didn't cook the columbus tubing. Columbus apparently

\r?\n> >> doesn't do well over 1450F.

\r?\n> >>

\r?\n> >> Hope this helps.

\r?\n> >>

\r?\n> >> Steve Leitgen

\r?\n> >> La Crosse, WI

\r?\n> >>

\r?\n> >> On Dec 3, 2005, at 11:57 AM, gpvb1@comcast.net wrote:

\r?\n> >>

\r?\n> >>> Gaaaaah! A dagger to me aged heart! Don't say silver-solder! Claaaass!

\r?\n> >>> Claaaass! Sister Mary Elephant says please pay attention! ;-)

\r?\n> >>>

\r?\n> >>> Frames are brazed. They are not soldered together. Plumbing is

\r?\n> >>> soldered.

\r?\n> >>> And Dursley Pedersens don't count, so there! I don't believe that they

\r?\n> >>> are soldered anyways, so neener, neener, neener!

\r?\n> >>>

\r?\n> >>> I'm also not aware of any silver brazing wire that you can

\r?\n> >>> fillet-braze with. Has that changed recently?

\r?\n> >>>

\r?\n> >>> Greg Parker

\r?\n> >>> Ann Arbor, Michigan

\r?\n> >>>

\r?\n> >>> Date: Sat, 3 Dec 2005 11:26:09 -0500

\r?\n> >>> From: Angel Garcia

\r?\n> >>> To: CLASSIC RENDEZVOUS

\r?\n> >>> Subject: Re: [CR] modern KOF fillet brazed builders

\r?\n> >>>

\r?\n> >>> The high end Moser TK2 bikes are fillet braze construction using

\r?\n> >>> silver

\r?\n> >>> solder (tubeset is Deda 16.5 EOM steel).

\r?\n> >>> Angel Garcia

\r?\n> >>> Verona, Italy

\r?\n> >>>

\r?\n> >>>

\r?\n> >>> On 12/3/05, rodk3d@comcast.net wrote:

\r?\n> >>>

\r?\n> >>>> All this talk of fillet brazing has me wondering who the modern KOF

\r?\n> >>>> fillet

\r?\n> >>>> brazed builders are. 3 modern builders that come to mind are David

\r?\n> >>>> Kirk,

\r?\n> >>>> Jeff Lyon and John Slawta, I'm sure there are many others. What do you

\r?\n> >>>> owners of newer fillet brazed frames think of them overall?

\r?\n> >>>>

\r?\n> >>>> cheers,

\r?\n> >>>> Rod Kronenberg

\r?\n> >>>> Fort Collins, CO