Loom
The word loom derives from the Old English term geloma, formed by combining the perfective prefix ge- with a root loma of unknown origin. In 1404, the spelling lome appeared in records to describe a machine designed to enable weaving thread into cloth. By 1838, the modern form loom had gained its specific meaning as a device for interlacing thread. This linguistic evolution traces back to Proto-Indo-European roots where werp meant to bend, describing how warp threads are stretched on the frame. The earliest confirmed horizontal loom evidence dates to 4400 BC on an ancient Egyptian pottery dish. That artifact showed a frame equipped with treadles to lift warp threads while leaving hands free to pass weft.
A loom performs three principal motions: shedding, picking, and battening. Shedding pulls part of the warp threads aside to form a shed, which is the space between raised and unraised yarns. The shed allows filling yarn carried by a shuttle to be inserted, forming the weft. Picking describes a single crossing of the weft thread from one side of the loom to the other through that shed. Conventional shuttle looms operate at speeds of about 150 to 160 picks per minute. After each pick, the new pass of weft thread must be tamped up against the fell to avoid large gaps. This compression of the weft threads is called battening. Secondary motions include taking up the cloth onto a beam and letting off warp yarns from another beam. An automatic loom requires 0.125 hp to 0.5 hp to operate, translating to 100W to 400W of power.
Heddle-rods are simple sticks placed across the warp and tied to individual warp threads using loops of string called leashes. A heddle-bar pulled perpendicular to the warp moves specific threads out of position to create a shed. Rigid heddles allow odd warp threads to go through slots while even ones pass through circular holes or vice versa. Non-rigid heddles use flexible strings or wires where each thread has its own heald with an eyelet at each end. These non-rigid systems require two frames for plain tabby weave but can handle complex twill weaves with three or more frames. Tablet weaving uses cards punched with holes where warp threads pass through them before being twisted and shifted. Rotating-hook heddles feature flip-flopping hooks that raise and lower warp threads by twisting loops of weft horizontally. The earliest evidence of a horizontal loom dates to 4400 BC on ancient Egyptian pottery showing treadles lifting warp threads.
Edmund Cartwright built and patented a power loom in 1785, which was adopted by the nascent cotton industry in England. By 1818, there were 32 factories containing 5,732 looms in the Manchester area alone. The Horrocks loom proved viable, but the Roberts Loom in 1830 marked the true turning point for industrial weaving. In 1841, Kenworthy and Bullough produced the Lancashire Loom which became self-acting or semi-automatic. This innovation enabled a single worker to run six looms simultaneously. Incremental changes culminated in the fully automatic Northrop Loom developed by Keighley-born inventor Northrop working for Draper Corporation in Hopedale. That loom recharged the shuttle when the pirn ran empty. By 1942, faster shuttleless Sulzer and rapier looms had been introduced to replace older models. Most cloth is now woven on power looms rather than handlooms, though some textiles still use manual methods.
Modern industrial looms can weave at 2,000 weft insertions per minute using various shuttleless methods. Air-jet looms use short quick bursts of compressed air to propel the weft through the shed, achieving up to 1,500 picks per minute. Water-jet looms take advantage of pressurized water to achieve speeds reaching as high as 1,000 picks per minute where water is directly available. Rapier looms use hook systems attached to rods or metal bands to pass picks across the shed, regularly reaching 700 picks per minute. Projectile looms utilize objects propelled across the shed usually by spring power and guided by series of reeds. These machines reach maximum speeds as high as 1,050 ppm while returning projectiles to reuse them. Circular looms use up to ten shuttles driven in circular motion from below by electromagnets for creating seamless tubes. Shuttle-type looms remain obsolete in modern manufacturing because they only reach a maximum of 300 picks per minute.
The loom serves as a symbol of cosmic creation and the structure upon which individual destiny is woven throughout history. Classical myth features Arachne who was changed into a spider by goddess Athena after jealousy over her godlike weaving skill. In Maya civilization, the goddess Ixchel taught the first woman how to weave at the beginning of time. The earliest confirmed drawloom fabrics come from the State of Chu dating around 400 BC. Some scholars speculate independent invention occurred in ancient Syria since drawloom fabrics found in Dura-Europas date before 256 AD. The draw loom was invented in China during Han dynasty and enhanced silk production significantly. It spread to Persia, India, and Europe where it played significant roles in cottage industries with imperial workshops. Backstrap looms still used today in Andean textiles and Central Asia demonstrate ancient roots continuing into modern practice.
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Common questions
What is the origin of the word loom?
The word loom derives from the Old English term geloma, formed by combining the perfective prefix ge- with a root loma of unknown origin. This linguistic evolution traces back to Proto-Indo-European roots where werp meant to bend.
When was the earliest confirmed horizontal loom evidence found?
The earliest confirmed horizontal loom evidence dates to 4400 BC on an ancient Egyptian pottery dish. That artifact showed a frame equipped with treadles to lift warp threads while leaving hands free to pass weft.
Who invented the power loom and when did he patent it?
Edmund Cartwright built and patented a power loom in 1785, which was adopted by the nascent cotton industry in England. By 1818, there were 32 factories containing 5,732 looms in the Manchester area alone.
How many picks per minute can modern air-jet looms achieve?
Air-jet looms use short quick bursts of compressed air to propel the weft through the shed, achieving up to 1,500 picks per minute. Modern industrial looms can weave at 2,000 weft insertions per minute using various shuttleless methods.
Where did the draw loom originate and when did it appear in China?
The draw loom was invented in China during Han dynasty and enhanced silk production significantly. The earliest confirmed drawloom fabrics come from the State of Chu dating around 400 BC.