Ribber

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Ribber

 

a knitting machine with two needle cylinders arranged at a right angle, used to knit fabrics and sections of knitted garments, the inner and outer sides of which are identical, for example, lasting and double-faced knitwear. The major working parts of a ribber include latch needles mounted in the grooves of the needle cylinder, locks that move the needles consecutively along the needle cylinder grooves for loop formation, a guide that places the yarn on the needle, and a mechanism for removing the completed loops from the needles. Circular and flat ribbers differ in the shape of the needle cylinder used.

Circular ribbers are designed to produce tubular knitted fabrics, from which outerwear is sewn. Needle cylinders up to 760 mm in diameter are used, and the machine may have as many as 72 loop-forming systems. Circular ribbers usually have a pattern mechanism that individually selects the needles with the color of yarn needed for a given pattern. Electronic devices that have been developed for needle selection permit rapid pattern changes. Circular ribbers are capable of producing up to 2 million loops per minute.

Flat ribbers are usually designed for knitting garment sections. The needle beds used have working widths up to 1,200 mm, and the ribbers are equipped with pattern mechanisms and automatic devices for changing the width of the section being knitted. Flat ribbers are equipped with one or two loop-forming systems and have a noncontinuous knitting action owing to the change in the direction of the knitting motion; as a result, their output (500,000 loops per minute) is lower than that of circular ribbers. The design of some automatic glove-making machines is based on flat ribbers.

Manual flat ribbers are commonly used in small workshops. They are flexible in application but have a low output (three to six items of knitted outerwear in 7 hr). They are also used for knitting gloves and various hosiery items.

REFERENCES

See references under KNITTING MACHINE.

I. I. SHALOV

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References in periodicals archive ?
Aben, L, Kessel, MAV, Duivenvoorden, HJ, Busschbach, JJV, Eling, PATM, Bogert, MA, & Ribbers, GM.
44 Magnum, Capacity: 5, Barrel length: 4 inches, Overall length: 9 inches, Weight: 34 ounces, Finish: Stainless steel, Sights: Adjustable rear, blade front, Grips: Ribber, Base Price: $693, Performance Package: $605 extra
Duivenvoordene Permite a comunicacao verbal Ribbers, 2010 e nao verbal; estrategias de apoio a comunicacao como: escrita, gestos, desenhos, etc.
Internet and information technologies have greatly changed the business environment, shifting the negotiating power from sellers to buyers (Cokins, 2003; Papazoglou, Ribbers, and Tsalgatidou, 2000).
Snijders CJ, Ribbers MT, de Bakker MP (1998) EMG recordings of abdominal and back muscles in various standing postures: Validation of a biomechanical model on sacroiliac joint stability.
They bolt on the grip frame stud from the bottom and are Taurus' Ribbers, with soft horizontal lines.
Snijders CJ, Ribbers MTLM, de Bakker HV, et al: EMG recordings of abdominal and back muscles in various standing postures: Validation of a biomechanical model on sacroiliac joint stability.
More than twenty-five ribbers from across the country will compete for the title of Critic's Choice, Critic's Hometown Choice, Big Whigs' Pig Award and People's Choice.
That Russ Garritty will have my life when he sees me plastered all over the paper," adds Lee, referring to his plainest-speaking Yorkshire colleague - the ring-leader of the merciless ribbers - whose ability to `extract the urine' within the confines of the jockeys' room is nothing short of legendary.
Michielsen ME, Smits M, Ribbers GM, Stam HJ, van der Geest JN, Bussmann JB, Selles RW.