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Tag: medieval

Three furniture projects for an outdoor kitchen: aubry cabinet

The least historically plausible piece of furniture is the aumbry cabinet – a 15th century form, usually used to store church vestments.

My aumbry cabinet assembled

Here are some historical examples.

a circa-1490 piece that was part of the Clive Sherwood collection sold at a Sotheby’s auction in 2002. (link from https://www.core77.com/posts/87776/Be-Honest-About-Your-Inspiration-or-Else) This was the historical exemplar that Chris Schwarz used to design the aumbry in the “The Anarchist’s Design Book” which provided some construction hints and templates for the tracery.
English aumbry c. 1490 from https://www.periodoakantiques.co.uk/antique-sales-archive/a-very-rare-english-oak-aumbry-circa-1490-27-stockno-1074/. I traced and modified the teardrop tracery design from this aumbry for mine.

This was the most ambitious piece of the three I built – I don’t know that anyone has tried to make a knock-down aumbry cabinet in this style before; I certainly could not find a description of one. The basis for the cabinet is a combined back/sides and shelf unit that folds up. I’ll refer to this assembly as the carcass of the cabinet, since it can be separated from the face frame or front. The design is based on the ubiquitous folding bookshelf, except with a solid back and sides.

Fold-up bookshelf action of the cupboard carcass. After all 3 shelves are up, the side panels fold in. The semi-circular cutouts are clearance for the bent tabs that support the front of the shelves.

To reduce weight (which was only partially successful) the back is frame and panel construction, with the panels only 1/4 inch thick, and the frame pieces 7/8 inch thick. All of the carcass construction is poplar, with the outside stained to match the front and top and the interior kept natural. (The color match is better in real life. I think the flash made the back shown in the photo below much lighter and more red-toned than it is in person.)

Back frame and panel.

The top is removable; it is just held in place by two cleats that fit snugly into the top of the cabinet. The weight of the top also helps keep it in place. The top is 7/8 inch thick ash with a dark stain. I chamfered the top edge heavily to increase the visible weight. Extant examples are not chamfered, but the darker English aumbry shown above had complex molding to produce a similar affect.

Top of the cabinet removed showing the alignment/stiffening cleats on the underside.

The front is two wide boards (stiles) connected by 2 narrower rails tenoned into the edges of the left and right panel. As Chris Schwarz describes it, the cupbuard front is really a giant face frame. The front and door are 3/4 inch thick ash with a dark stain on the exterior surfaces. Carving was completed before finishing and assembly, as was the scratch-stock molding. The gothic tracery carving was done with the technique presented in this video. Iron strap hinges (purchased years before from Lee Valley) and a blacksmith made latch were nailed on the front frame (with Rivierre nails), with the nails clenched into place.

Front detached from the carcass
Back of the front, showing the clenched nails. Only the door was stained on both sides in an effort to keep the interior as light in color as possible. You can clearly see the pegs that help hold the rails in place and the hardware to attach the front to the carcass.

The hardware that allows the front to be removed is knock-down bed rail hardware. I had the idea for using it for the knock-down cooler chest, but I found there were better options for the chest. Other than trying the hardware on a small mock-up I didn’t know that any of this would work until all the assembly was done and the hardware installed. It turned out fine – it goes together very easily, and requires just a little persuasion to come back apart. The carcass folds up and is not too heavy to carry. The face frame is stiff enough to move easily, and with the latch in place the door doesn’t flop around when being transported. All-in-all a successful project. Now I just need an event to happen so I can try it out.

The key to disassembly – bed rail hardware. The hooks are on the carcass sides, which fold in for storage and transport. The plates are embedded into the front stiles, and are flush with the back surface. The weight of the front keeps the fasteners firmly connected.

Three furniture projects for an outdoor kitchen: knock-down cooler chest.

Three furniture projects

In the Summer of 2019, plans were made for a 14th century deed of arms to be held in the late Spring of 2020. My friend Casey asked if I would be interested in helping prepare hospitality for the knights captured during the day. We planned to try our hand at not only producing documented recipes with proper presentation but hoped to run our camp kitchen using 14th century procedures and technology.

As part of that effort, I resolved to create some furniture to enhance the period appearance of our kitchen encampment. I started on designing three pieces in September of 2019 after discussing plans with Casey at Pennsic. The requirements were to build pieces with period appearance that could also be broken down for transport to this and other, future, events.

The first piece would be a chest to conceal a modern plastic cooler. I’d built a cooler chest many years ago based on this article at bloodandsawdust.com. That initial chest has served me at Pennsic and other events for many years. It is not really based on any particular period example, and was sized for a 60 qt Coleman cooler, with very little extra space once the cooler was placed inside. The lid, front and back were dimensional lumber pine boards, with plywood sides and floor. I used the panel brackets from Lee Valley that were shown in the Blood and Sawdust post. Unfortunately, they are no longer available.

First cooler chest in 2010, with its own rain/sun awning.
The new cooler chest

For the medieval kitchen project, I thought I’d build a chest that was more closely based on a period example. I turned to Die gotischen Truhen der Lüneburger Heideklöster, a book describing the chests (Truhen) of the six con-
vents of the Lüneburg Heath – Walsrode, Ebstorf, Lüne, Isenhagen, Medingen, and Wienhaus. The particular chest I chose to base my version on was chest number 212 from Kloster Wienhausen dated to about 1300. Here are images from the book of the front and interior of the chest:

Truhe TR-NR 212
Interior or Truhe 212

Here is an article about chests from Isenhagen from the St. Thomasguild blog:

Article about similar chests from St. Thomas Guild: https://thomasguild.blogspot.com/2012/12/medieval-chests-from-kloster-isenhagen.html

Finally, an image from the Kloster Wienhausen web page showing the variety of chest at the convent:

https://www.kloster-wienhausen.de

My approach was to copy the construction details of the original to the greatest extent possible while designing the chest to be dis-assemblable for transport. I also chose to make the chest out of tulip poplar. Poplar is much lighter than oak (the material for the original chest), readily available in central Pennsylvania from my preferred hardwood dealer (Alderfer Lumber, Mt. Pleasant Mills, PA) in a variety of thicknesses.

I’m not going to do a full construction journal here, but the gist of the design is that the front and back are one assembly, the sides are panels with narrower rabbet that fits into grooves in the front and back legs. The lid is removable, with wooden cross-beams (or cleats) that form an integral hinge with the back legs. The floor of the chest is removable and made from plywood. The floor of these cooler chests is subject to the most abuse – there’s always some leakage or condensation from the cooler, and the floor is kept enclosed and covered, so there’s a possibility of mold and mildew buildup. This means it should be as replaceable as possible, thus plywood construction with a heavy coat of varnish for protection.

I did not include the carving decoration or the piercing of the front legs in my design, but those could be done/added at any time in the future. There’s also no lock set on the chest, as I’m not planning on putting anything of real value into it. Strap hinges were added to the top for decoration – some of the other chests from Lüneburg had strap hinges in addition to the wooden hinges. Having seen this style of wooden hinge fail on other chests (both modern and period) the strap hinges were mounted such that they can be used as the real lid hinges in the future by adding another strap down the back leg.

Here’s my cooler chest broken down for transport:

All the component parts of the cooler chest, which take up relatively little space for transport.

Here’s the front panel:

The center panel is mortised into grooves on the edges of the legs, and pinned into place with oak dowels.

Here’s a view of the wooden hinge joint:

Wooden hinge with a wooden dowel hinge pin. I will replace that with a steel pin before the chest is used in the field.
Hinge detail – note that for this to work, the back of the legs and center panel have to be curved to match the radius of the lid travel. A minor detail that is not called out on the construction details of the original chest.
Assembled chest with the lid raised. The wooden hinge limits how far the lid will open. You can also see how the lid cleats/cross beams will fit into the recesses in the front legs and the clenched nails holding the strap hinges in place.
The connecting hardware that keeps the sides in place. These are Rockler surface-mount bed rail brackets, Item #38892. They work great for this application.
Interior of the chest showing the removable floor. The semi-circular cutout is for a drainage hose from the plastic cooler, and the corners are notched to clear the brackets that hold the chest together.

The next blog post will detail the work table and trestles.

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