Re: [CR]Are there real wrap around seatstay lugs?

(Example: Production Builders:Cinelli:Laser)

From: <OROBOYZ@aol.com>
Date: Tue, 25 May 2004 14:43:35 EDT
Subject: Re: [CR]Are there real wrap around seatstay lugs?
To: tsan7759142@comcast.net, classicrendezvous@bikelist.org


In a message dated 5/25/2004 12:43:03 PM Eastern Daylight Time, tsan7759142@comcast.net writes:

<< Are all wrap around seat lugs done this way? Is the effect purely cosmetic, rather than structural? >>

Last past first: Purely cosmetic (but looks count!)

How are wrapovers done? There are a bunch of ways wrapovers can be done.. Most are some use of machined of machined "top eyes" tapped over with a hammer as the tips cross over the top of the seat lug...

1.) There is the method of using special long point top eye plugs, connecting them at the top middle and filing:

http://www.classicrendezvous.com/images/British/Holdsworth/HoldDss1L.jpg

Woodrup looks like it has had a special pair of mating top eye plugs made up to look like one piece (see how high the engraving goes?)

http://www.classicrendezvous.com/images/British/Woodrup/Wood_DK3L.jpg

2.) Here is Mercian using more conventional top eyes with less to join at wrap over..

http://www.classicrendezvous.com/images/British/Mercian/Mercian_CO_3.jpg

3.) And another version, a Wally Green using similar methods:

http://www.classicrendezvous.com/images/British/Green_Wally/GreenW4L.jpg

4.) And again on a Hetchins...

http://www.classicrendezvous.com/images/British/Hetchins/H8116sL.jpg

5.) There ARE one piece plug in deal, that Falcon used frequently:

http://www.classicrendezvous.com/images/British/Falcon/FalcDB3L.jpg

6.) And finally there are special wrapover stamped plates that are used to connect the two seat stays which are chamfer cut to receive them. I didn't have an example but here's a drawing I made of what they look like:

http://www.classicrendezvous.com/British/wrapover_plate.htm

Dale Brown
Greensboro, NC