Replies

1. 
   pauldowns | Feb 13, 2004 05:12pm | #1

   The mechanism is pictured in a book called "Extraordinary Furniture" by (IIRC) Charles Lindsay. It's just a photo and also includes part of the original patent illustrations. I have also seen the table built by Senour & Carmichael in the late 80s. The Jupe mechanism involves significant metalworking, and is not at all easy to make. The leaves are also enormous and difficult to store. A far better way to expand a round table is to put the leaves on the circumference. Both of these methods require extremely precise construction, and are not for the beginner. Personally I have built the circumferential leaf tables, and I would recommend them over the Jupe mechanism. You can see my version here:

   http://www.shop.pauldowns.com/RTScheckenback.html

   Good Luck!

   Paul Downs

1. 
   jackplane | Feb 13, 2004 05:32pm | #3

   Nice work, paul. Any problems with deflection on the leaves?

1. 
   pauldowns | Feb 13, 2004 05:46pm | #4

   No. Structurally, they are very interesting. You make the inside edge of the leaf interlock with the outside edge of the table, and a single draw catch under the table holds the leaf tight to the table. Because the mating surfaces are not straight, the leaf cannot rotate away from the table. A single leaf is held by a single draw catch. We also have interlocking splines from leaf to leaf, when you get them all together they form a secure ring that is hanging on the edge of the table - the only way to remove them is to pull them straight away from the table, and the draw catch prevents that. It's a heck of a lot more elegant and easier to build than a Jupe. The leaves are an odd shape, and should be stored in a specially built box.

2. 
   bobpowers | Feb 13, 2004 11:23pm | #5

   Paul,

   After many, many years as an amateur woodworker, and just about at the time that I think I am really improving, I see something like your table.  It reminds me that I've a long way to go.  It's beautiful.

   Bob

3. 
   ChasStanford | Feb 13, 2004 11:27pm | #6

   All I can say is Wow.

4. 
   raven0811 | Aug 16, 2010 01:38pm | #7

   Book and company mentioned.

   I know that I'm commenting on this 6 yrs later, but I looked the boook up on the internet, by title and author, looked it up on my local libraries web site, and cannot find it. the company, Senour & Carmichael are nowhere to be found except as a reference to this very blog! How will others such as myself find out this information?

2. 
   rslatm | Feb 13, 2004 05:28pm | #2

   http://home.att.net/~waterfront-woods/

   Pretty advanced project!