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The coil used for this style of binding are made of high quality PVC plastic and offer a secure high quality and professionally bound book while binding documents up to 2” thick. Spiral coil binding spines are also available in more colors and sizes than other binding styles.
Firstly, one binds the sheets of papers along an edge with a thick needle and strong thread. One can also use loose-leaf rings, binding posts, twin-loop spine coils, plastic spiral coils, and plastic spine combs, but they last for a shorter time. Next, one encloses the bound stack of paper in a cover.
Comb binding (sometimes referred to as "cerlox" or "surelox" binding) is one of many ways to bind pages together into a book. This method uses round plastic spines with 19 rings (for US Letter size) or 21 rings (for A4 size) and a hole puncher that makes rectangular holes.
In electrical engineering, coil winding is the manufacture of electromagnetic coils. Coils are used as components of circuits, and to provide the magnetic field of motors, transformers, and generators, and in the manufacture of loudspeakers and microphones. The shape and dimensions of a winding are designed to fulfill the particular purpose.
Coil binding uses a spring-like coil, threaded into the punched holes. Comb binding uses a plastic strip with "fingers" that clip into the punched holes. Both use their own types of specialized hole punches. Comb binding typically punches 19 or 23 rectangular holes (for letter and A4 paper sizes, respectively).
The mountaineer's coil (also alpine coil, climber's coil, lap coil, or standing coil [2]) is a traditional method used by climbers to store and transport a climbing rope. [3] This older style coil is noted as being more prone to twists and tangles than the butterfly coil , and care must be taken upon uncoiling to avoid these problems.