[TheForge] Stuart Hill Joint / Claydon Clamp

[Jeff Wilson]

I am interested in the draft pdfs.
Please send them to this address.
Thanks,
Jeff Wilson
Poulsbo, WA
----- Original Message ----- 
From: "Paul Boulay" <pboulay at earthlink.net>
To: <theforge at mailman.qth.net>
Sent: Friday, January 13, 2012 12:20 AM
Subject: [TheForge] Stuart Hill Joint / Claydon Clamp


>A few days ago I was asked for information for an on-line location of 
>photos of the Claydon Clamp joint.
> I fount the drafts of the articles that appeared in Hammer's Blow 18.2 and 
> 18.3 (2010 issues Summer and Fall). I can send anyone who cares a pdf of 
> these drafts via e-mail. Just ask...
>
> This link has the photos that I submitted to the Hammer's Blow for the 
> article reporting on my experiments.
> http://s739.photobucket.com/albums/xx32/prboulay/Stuart-Hill/
> Same thing but comes up as a slide show:
> http://s739.photobucket.com/albums/xx32/prboulay/Stuart-Hill/?a
>
> Here are the captions that go with the photos in the links above. You can 
> use the number in the square brackets to cross reference to the right 
> image.
>
> Figure 1 – Tooling. Bottom tool fabricated from 5-
> 3/8" long 2x2x1/4 angle iron for the sides and 1-1/2 x ½
> CR flat bar for the center. An entirely functional
> version of this can be made with hand tools, a drill
> press and a welder. It is mounted on the anvil with the
> hardy bolt scheme from a prior HB. [7445a]
>
> Figure 2 - Top tool. Initial version. Note the center
> ridge that supports the bar while allowing the collar to
> wrap from the sides. We found that this ridge is
> essential to keep the bars from bending. The final
> version has an alignment plate welded on. [7339b]
>
> Figure 3 - The hot collar is placed then the top bar and
> the top tool is positioned on top. [7475]
>
> Figure 4 -- Then hit it! The tooling could be used with a
> power hammer, a treadle hammer, a fly press or a
> hydraulic press as well. [7478]
>
> Figure 5 - Sample 1 -- Our first and an enduring
> favorite. We liked the way the collar seems to hug the
> bars. The nicks on the collar are due to getting the
> work out of alignment with the tool – this was made
> before I added the alignment features. [7400]
>
> Figure 6 - Sample 3 -- In this one we made the collar
> diameter 1.25”. This is larger than the ratio that
> Stuart put in the patent but for round collars we found
> the alignment tricky. This shows the not so nice side
> and the variation between top and bottom caused by
> misalignment. [7402b]
>
> Figure 7 -- Sample 5 uses 1.5" square tubing and 5/8
> bars. The proportions seem to work out about right.
> Compare the convex beak-like aspect of this with
> Sample 1. [7408b]
>
> Figure 8 - Sample 5 front view. In many respects this
> gives the same look as the Round collar that we liked
> from Sample 1. [7428b]
>
> Figure 9 - Sample 6. This is 1" square collar stock 1"
> long on 1/2 bar. These are the proportions given in the
> patent -- but we found that the collar was too small or
> too long to allow the bars to touch. However the effect
> is attractive. [7406b]
>
> Figure 10 - Grille "Claydon 2" by Bob Patrick. (Photo
> by George Lattermoser.) [abana-181]
> Photo of a grille by Bob Patrick exhibited at the ABANA
> 2010 Conference using these joints. Bob uses round
> tubing for his collars and claims to be the first to use 2 bars
> in parallel with this joint.
>
>
>>>To: Blacksmithing List Sponsored by ABANA
>>>Subject: Re: [TheForge] Stuart Hill Joint / Claydon Clamp
>
>>>Paul, is there anywhere that we can see pictures of this connection 
>>>on-line?
>>>dave
>
>
>
>
> Paul Boulay
> 408-483-1986
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