During construction of medieval shoes one needs to use many different types of seams. Since there are a lot of well preserved finds from the medieval period which show exactly how the different parts of turnshoes have been attached, we also know a lot about construction of medieval shoes.
The most known categorization of seams for medieval shoes was published by Olaf Goubitz (Goubitz). It is also the widely used system for distinguishing seams in literature and finding reports. I have summarized the different types of seams in the following table.
|Name||Seam||Notation (published by Goubitz)|
|Edge/Flesh Butt seam|
|Binding seam to join two parts|
|Binding Stitch for reinforcement cords|
|Seam for attaching a rand|
Seams used for sewing upper parts
The butt seam is the strongest seam used in turnshow construction. It is mostly used for joining both sides of the upper together or attaching extensions to the main part of the upper. Other parts like tongues and facings have mostly been attached via a binding seam.
Two threads are used for sewing 1 both parts together. A pig bristle is attached to each end. Each end passes through the the stitching channel and therefore we have "2" threads joining both parts together. Compared to the saddle seam you do not get a bulge where both pieces join together, which is much more comfortable to wear on the foot. Using two threads also greatly increases stability for this seam.
On some finds one can see that both edges on the upper parts could be 'skived'. The following picture shows a finished buttseam from the "inside" (left) and outside (right).
Binding stitch is often used to attach smaller pieces, like tongues, facings and smaller extensions to the upper. Since it is not as strong as the butt seam it is only used for seams which do not need to withstand high tensions.
The Saddle seam can be found in many areas of leather processing as a strong connecting seam between two leather parts.
Bind- and Reinforcement Seams
The Binding seam is used to attach heel reinforcements or lateral reinforcements to the upper. Only a single thread is required for this.
During the 13th century a new technique for reinforcing the leather appeared. A thick thread is attached by a binding seam to the flesh side of the leather.
Reinforcement for lacing holes
Holes for the lacings are reinforced with an additional sewn-on leather strip. This prevents the holes from stretching or tearing.
- The reinforcement is attached at the edge via a half leather stitch to the upper. A single thread is used for the seam.
- Now the remaining sides of the reinforcement are sewn via a binding stitch.
The holes can then be punched/cut through both leather parts at the same time. The holes were not further cleaned or secured.
Seam for attaching a rand
Goubitz knows only one variant for sheep edge edging, which is also the most widely used variant.
Dabei wird ein dünner Lederstreifen zunächst per halben Lederstich an den Rand genäht und anschließend umgeschlagen und per Heftstich an das Oberleder gehäftet. Diese Variante lässt sich sehr schnell umsetzen, hat aber den Nachteil das der Nähfaden immer zu sehen ist und die Schaftrandeinfassung keinen sauberen Abschluss bildet. Andere etwas aufwendigere Varianten bilden einen schöneren Abschluss.
A thin strip of leather is first sewn to the edge with half a leather stitch and then turned over and sewn to the upper by a binding stitch. This variant has the disadvantage that the sewing thread is always visible and the rand does not form a clean finish with the upper. Other more elaborate variants form a more beautiful finish.
Since the soles of turn-shoes wear through quickly (especially in the heel and front ball area), many finds still show traces of sewn-on patches.
In the 13th century mostly two different seams are used to attach the sole to the upper:
The first variant with a small leather stripe in between
Without small leather stripe:
In the literature it is often assumed that this strip is used to get the seam tighter and more water proof. From my personal experience I can say that the shoes do not become more or less water proof by using this leather strip 3. But it has another big advantage!
Due to the way the upper and sole leather are joined together, the upper leather is always slightly overhanging at the side. As time goes by, and the leather is worn, the upper is pushed further down and comes into contact with the ground. As it is much thinner than the sole, it wears through much faster then the sole. To counteract this wear you can insert a a small leather strip. The overhanging upper leather is now protected by the leather strip and the shoe lasts longer. In the finds one finds some examples where the leather strip is only present in the area of the toes and the heel. Others have a leather strip all arround the sole.
- Goubitz, Olaf; van Driel-Murray, Carol; Groenman-van Waateringe, Willy (2001): Stepping through time. Archaeological footwear from prehistoric times until 1800. Zwolle: Stichting Promotie Archeologie.
- Actually it is only one thread whose both ends are used. To distinguish the two they were highlighted in black/white. [return]
- The edges of the heel reinforcement are sharpened with a knife before sewing onto the upper. [return]
- It depends only off the quality of the leather and the execution of the seams if the sole seams is more or less water proof. Pulling the seam tight results in very waterproof seam. [return]