Re: [CR] [Frame] How was Philippe's Adjustable Stem Made?

(Example: Production Builders:Cinelli:Laser)

From: "Peter Weigle" <jpweigle@sbcglobal.net>
To: "Amir Avitzur" <avitzur@013.net>, "framebuilders list" <framebuilders@phred.org>
References: <JJEEKLDDELHGFDGDBELBKEDFIBAA.avitzur@013.net.il> <1e202cc221c747bdb63c9c4d760dc40e@BL2PRD0102HT006.prod.exchangelabs.com>
Date: Tue, 20 Apr 2010 15:41:17 -0400
Cc: Classicrendezvous <classicrendezvous@bikelist.org>
Subject: Re: [CR] [Frame] How was Philippe's Adjustable Stem Made?


Amir, Hard to tell from the photo but I am wondering if two of the pieces were welded together first, and filed up to look like one piece, before the parts were brazed together...?

peter weigle
lyme, ct.


----- Original Message -----
From: Amir Avitzur
To: framebuilders list
Cc: Classicrendezvous
Sent: Tuesday, April 20, 2010 11:56 AM
Subject: [Frame] How was Philippe's Adjustable Stem Made?



>I took an old Philippe "MajorTaylor" stem to the plater's recently
> to remove the old pealing chrome prior to polish & replate.
>
> Under the chrome I was surprised to find that it was made from two rather
> than three pieces:
> I expected three pieces: quill, lug and extension with some fillet
> brazing.
>
> Instead there was only a quill with a "built-in" lug and an extension.
>
> See photo at: http://www.flickr.com/photos/8210984@N06/4537691821/
>
> It looks as if the built-in lug was bulge-formed.
> But bulge forming dies are expensive ... used only when the quantities
> justify the expense.
>
> Could there be another explanation?
>
>
> Amir Avitzur
> R"G, Israel
>
>
>
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