Ferrule

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A wire rope terminated with a ferrule (left) and a thimble (right) Wire rope with thimble and ferrule.jpg
A wire rope terminated with a ferrule (left) and a thimble (right)
Picco pipe with nickel silver ferrule Piccopipe.jpg
Picco pipe with nickel silver ferrule
Non-circular ferrules holding bristles of a brush to its handle Brushtypes.jpg
Non-circular ferrules holding bristles of a brush to its handle

A ferrule (a corruption of Latin viriola "small bracelet", under the influence of ferrum "iron") is any of a number of types of objects, generally used for fastening, joining, sealing, or reinforcement. They are often narrow circular rings made from metal, or less commonly, plastic. Ferrules are also often referred to as eyelets or grommets within the manufacturing industry. [1]

Contents

Most ferrules consist of a circular clamp used to hold together and attach fibers, wires, or posts, generally by crimping, swaging, or otherwise deforming the ferrule to permanently tighten it onto the parts that it holds.

Examples

Reasons for use

Some of the reasons people use ferrules include: [4]

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<span class="mw-page-title-main">Knitting needle</span>

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<span class="mw-page-title-main">Wire rope</span> Metal rope

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A fitting or adapter is used in pipe systems to connect sections of pipe or tube, adapt to different sizes or shapes, and for other purposes such as regulating fluid flow. These fittings are used in plumbing to manipulate the conveyance of fluids such as water for potatory, irrigational, sanitary, and refrigerative purposes, gas, petroleum, liquid waste, or any other liquid or gaseous substances required in domestic or commercial environments, within a system of pipes or tubes, connected by various methods, as dictated by the material of which these are made, the material being conveyed, and the particular environmental context in which they will be used, such as soldering, mortaring, caulking, Plastic welding, welding, friction fittings, threaded fittings, and compression fittings.

<span class="mw-page-title-main">Copper tubing</span> Type of metal tubing

Copper tubing is most often used for heating systems and as a refrigerant line in HVAC systems. Copper tubing is slowly being replaced by PEX tubing in hot and cold water applications. There are two basic types of copper tubing, soft copper and rigid copper. Copper tubing is joined using flare connection, compression connection, pressed connection, or solder. Copper offers a high level of corrosion resistance but is becoming very costly.

<span class="mw-page-title-main">Swaged sleeve</span> Mechanically swaged connector

A swaged sleeve is a connector that gets crimped using a hand tool and die (swaged). This type of compressed sleeve is commonly used to make mechanical or conductive connections. These sleeves join or terminate wire rope, aircraft cable, synthetic cable, fibrous rope, or electrical conductor cables.

In telecommunications, a line splice is a method of connecting electrical cables or optical fibers.

References

  1. "Ferrules & Eyelets". Trans-Matic Manufacturing, Inc. Archived from the original on 19 April 2014. Retrieved 18 April 2014.
  2. USpatent 5016970,Mito Ryo Nagase; Machida Juichi Noda& Tachikawa Etsuji Sugita,"Ferrule for optical fiber transmitting linearly polarized light and optical fiber connector using this ferrule",issued 1991-05-21 (download PDF [ permanent dead link ])
  3. NIH search
  4. "Ferrules & Eyelets". Trans-Matic Manufacturing, Inc. Archived from the original on 19 April 2014. Retrieved 18 April 2014.