Reel

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A reel is a device used to store elongated and flexible objects (e.g.

Construction

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The size of the core is dependent on several factors. A smaller core will obviously allow more material to be stored in a given space. However, there is a limit to how tightly the stored material can be wound without damaging it and this limits how small the core can be.

Other issues affecting the core size include:

• Mechanical strength of the core (especially with big reels)
• Acceptable turning speed (for a given rate of material moving on or off the reel a smaller core will mean that an almost empty reel has to turn faster)
• any functional requirements of the core e.g.
  • For a reel that must be mechanically turned the size of the grips that mount it on the mechanical turning device.
  • The size of the mountings needed to support the core during unwinding.
  • Anything mounted on the cores (e.g. the sockets on an
    extension reel
    )

With material such as photographic film that is flat and long but is relatively wide, the material generally is stored in successive single layers. In cases where the material is more uniform in cross-section (for example, a cable), the material may be safely wound around a reel that is wider than its width. In this case, several windings are needed to create a layer on the reel.

Uses

Examples of reel usage include:

• Hose reels that store and prevent kinking of fire hoses or garden hoses
• weavers
• Retractable tape measures
• Fishing reels that store and pull in fishing lines when angling
• Film reels that carry film stocks
• Many
  audio recordings of the late 20th century (and some today) use reel-to-reel magnetic tape
• Kite lines are frequently operated from reels
• Specialized reels for holding tow line for
  sailplane
  launching
• Laying of
  communications cables
  use giant reels
• Winches that wind cables/chains for sails or anchors on ships
• Windlasses that are used to wind and pull rope or chains in order to lift weights on implements such as a crane, a well or a drawbridge
• Webbing barriers that allow mobile post positions collect tensionally excess webbing
• Tow trucks hold steel cable on reels
• Rope, wire and electrical cable is often supplied on reels
• keys and clippers
• A cave diving reel is a safety equipment used for running a distance line^[1]

Motion picture terminology

It is traditional to discuss the length of theatrical

A "split reel" is a motion picture film reel in two halves that, when assembled, hold a specific length of motion picture film that has been wound on a plastic core. Using a split reel allows film to be shipped or handled in a lighter and smaller form than film would on a "fixed" reel. In the silent era, the term was used to describe a single reel that accommodated two or more individual titles.

As

A newsreel is a short documentary film.

A showreel or demo reel is a short film showcasing a person's or organization's previous work.

See also

• Spindle (tool)

References