Techniques - Looms

Looms do not vary greatly in essential details, but they do vary in size and sophistication. The main technical requirement of the loom is to provide the correct tension and the means of dividing the warps into alternate sets of leaves. A shedding device allows the weaver to pass wefts through crossed and uncrossed warps, instead of laboriously threading the weft in and out of the warps. 

Horizontal Looms  The simplest form of loom is a horizontal; one that can be staked to the ground or supported by sidepieces on the ground. The necessary tension can be obtained through the use of wedges. This style of loom is ideal for nomadic people as it can be assembled or dismantled and is easily transportable. Rugs produced on horizontal looms are generally fairly small and the weave quality is inferior to those rugs made on a professional standing loom.

Vertical Looms There are three broad groups of vertical looms, all of which can be modified in a number of ways: the fixed village loom, the Tabriz or Bunyan loom, and the roller beam loom.  The fixed village loom is used mainly in Iran and consists of a fixed upper beam and a moveable lower or cloth beam which slots into two sidepieces. The correct tension is created by driving wedges into the slots. The weavers work on an adjustable plank which is raised as the work progresses.

The Tabriz loom, named after the city of Tabriz, is used in North Western Iran. The warps are continuous and pass around behind the loom. Tension is obtained with wedges. The weavers sit on a fixed seat and when a portion of the carpet has been completed, the tension is released and the carpet is pulled down and rolled around the back of the loom. This process continues until the rug is completed, when the warps are severed and the carpet is taken off the loom. 

The roller beam loom is a traditional Turkish village loom, but is also found in Iran and India. It consists of two movable beams to which the warps are attached. Both beams are fitted with ratchets or similar locking devices and completed work is rolled on to the lower beam. It is possible to weave very long rugs by these means, and in some areas of Turkey rugs are woven in series. 


Vertical looms are undoubtedly more comfortable to operate. These are found more in city weavers and sedentary peoples because they are hard to dismantle and transport. There is no limit to the length of the carpet that can be woven on a vertical loom and there is no restriction to its width.