




A blog to chronicle the restoration of antique furniture and the construction of new furniture http//www.johnmarkpower.com email: info@johnmarkpower.com





An earlier patch near one of the knife hinges used to hold the tops together was partially missing. The next two photos show the new patch being installed.
As you can see in the photos below, every top surface had a crack in it. The cracks were caused by the shrinkage of the pine boards that make up the substrate for the table surface. The veneers were torn apart by this movement leaving a 1/8 inch gap in the surfaces that ran almost the entire length of the surfaces. The repair for this kind of a break is to fill the gap with a long tapered wedge which is inserted with glue. Once the glue sets, the wedge is pared down flush with the surface. The next few photos show this procedure. One note, the blue tape seen on the wood are all the spots with loose veneer. these are found by tapping on the surface. each was individually glued down.
this photo shows the wedges taped into place.
Another crack in a top.
The second top wedged.
Here is the third surface wedged.
As I stated above, there was a lot of the edge veneer that was missing and had to be replaced. This is done by cleaning the substrate of old glue and then adhering the new veneer to the substrate using hide glue. The veneer is held in place by lots of thin slices of tape. The gaps between the tape are to allow air to reach the glue.
This next photo shows the veneer being glued in place.
In the next few photos, the old veneer is being glued down and the edge veneer is being glued into place. The blue tape indicates where the veneer was loose or missing.


Like the tops, the base also had veneer damage which needed to be addressed. It was mostly along the sides and the canted corners of the apron. Below is a photo of the veneer being glued down.
After the glue had set on everything, the excess glue was removed with hot water and all of the patches were carved flush. The next step was to sand everything to get all of the veneer and patches smooth. After the sanding was completed I commenced with the application of the finish. No stain was necessary for this piece except for a few light areas and patches. Below are a some photos showing the tops and the base with a couple of coats on them. The patches were later touched-up.



The major problems included significant veneer loss, two very broken legs, loose joinery and cracked and warped top surfaces. I employed a variety of techniques to repair this piece. While inspecting the piece, I realized that the finish on the piece was not an original finish and that repair work had been completed at sometime in the past. With this knowledge, I decided to remove the existing finish in order to make all of the repairs. The result will be an appropriate finish and overall a much better looking piece.
I used the same process to repair both legs, so I will detail the repair of one. To give myself something to glue to I first needed a flat area to apply the patch. This was done by using a router and a simple jig I built to create the flat surface. Because less wood was missing from the top of the turned section, I made the patch in two steps which also increased the surface area for gluing. Below is a photo of the leg in the jig, ready to be flattened.
This photo shows the same leg after the area to be patched was flattened.
This photo shows the patch being glued in place. The photo was taken at a side angle showing the stepped shape of the patch. Cuban Mahogany is no longer commercially available, so I use a very tight grained Honduran Mahogany. I do have Cuban Mahogany veneer which I will use for the veneer patches.
Here is a photo of the patch from the front after the clamps were removed.
This photo shows the patch after the turned section had been hand carved away and lines drawn out for the molding to be shaped. Originally this was done on a lathe, but it is very difficult to re-mount a leg and have it centered, so I carved the molding by hand.
Here is a photo of the molding carved. It will be further refined after the legs are glued in place. The last step in the repair of the legs was to recreate the mortises for the joinery.
This photo shows one of the legs that was cracked being glued back together.
Most of the joinery on the base was lose, so I knocked it apart to clean the old glue. I used hide glue to glue the base, which was the glue originally used. Here is a photo of all of the components of the base ready for gluing.
This photo shows the base being glued up.
Both of the top surfaces were cracked and also warped. I used two different techniques to fix the warps and stabilize the cracks. the cracks will be wedged later with Mahogany. The bottom surface has only one side visible, so I was able to put butterfly patches in the underside to stabilize the crack. Here is a photo of the butterfly patches laid out on the underside. After they were traced with an Xacto blade I set the patches aside.
Here is a photo of the patches next to the carved out areas they will fit into. The clamp is holding the boards on either side of the crack flush.
Here is a photo of the patches glued in place. No clamps were required because the patches fit snugly into place.
The top surface is veneered on both sides and both sides are visible depending on whether the top is open or closed. This presented a challenge because I could not have butterfly patches in the veneer, So the answer was to go in through the side of the top and insert metal threaded rods into top which bridge the crack and keep it level. Afterwards these rods are sealed inside with Mahogany patches so that they are unseen. This next and last photo shows the rods being inserted with glue. The clamps hold the two boards on either side of the crack flush.
The next post will show the veneer replacement and the fixing of the cracks.