Compact cord

A cord having a structure which facilitates visual detection of core filament mislocation consisting of a core structure, one single layer and one wrapping filament surrounding said layer;

• said core structure consisting of 1 to 4 core filaments, said core filaments having a first diameter greater than 0.15 mm and less than 0.40 mm;
• said layer consisting of n+m layer filaments, n being equal to the number of core filaments, and m being equal to six if n is greater than one and being equal to five if n is equal to one;
• said layer filaments having a diameter of at least the first diameter of the core filaments minus 0.05 mm and no greater than the first diameter of the core filaments minus 0.015 mm;
• said layer filaments and said core filaments being twisted in a same direction and at a same pitch;
• and
• wherein a surface of said core filaments is visually different from a surface of said layer filaments so that said surfaces can be visually differentiated by the naked, unaided eye of a person with ordinary visual capacities and it can be determined if core filament mislocation has occurred.

A cord which facilitates visual determination of core filament mislocation and which comprising:

• a core structure,
• one single layer and
• one wrapping filament surrounding said layer;
• said core structure consisting of 1 to 4 core filaments, said core filaments having a first diameter greater than 0.15 mm and less than 0.40 mm;
• said layer consisting of n+m layer filaments, n being equal to the number of core filaments, and m being equal to six if n is greater than one and being equal to five if n is equal to one;
• said layer filaments having a diameter of at least the first diameter of the core filaments minus 0.05 mm and no greater than the first diameter of the core filaments minus 0.015 mm;
• said layer filaments and said core filaments being twisted in a same direction and at a same pitch;
• and
• surface characteristic means for visually ascertaining, quickly and on-line during manufacturing of the core, whether core migration has occurred and that a core filament location is incorrect by visually differentiating a presence of a surface of a core filament amongst said layer filaments using a naked, unaided eye of a person with ordinary visual capacities.

A cord having a structure which facilitates visual inspection for core filament mislocation during manufacture of the cord, comprising:

• a cord structure consisting of 1 to 4 core filaments, said core filaments having a first diameter greater than 0.15 mm and less than 0.40 mm;
• one single layer consisting of n+m layer filaments, said layer filaments having a second diameter of at least the first diameter of the core filaments minus 0.05 mm and no greater than the first diameter of the core filaments minus 0.015 mm, n being equal to the number of core filaments and m being equal to six if n is greater than one and being equal to five if n is equal to one;
• said layer filaments an said core filaments being twisted in a same direction and at a same pitch;
• and
• surface characteristic means for visually ascertaining, quickly and on-line during manufacturing of the core, whether core migration has occurred and a core filament location is incorrect by visually differentiating a presence of a surface of a core filament amongst said layer filaments using a naked, unaided eye of a person with ordinary visual capacities.

A cord comprising a structure which facilitates visual inspection and determination of core filament mislocation, comprising:

• a core structure consisting of a first plurality of filaments;
• a first visually ascertainable surface characteristic provided on the first filaments;
• an external layer which is formed directly on the core structure and which consists of a second plurality of filaments;
• and
• a second visually ascertainable surface characteristic visibly different from the first visually ascertainable surface characteristic of the filaments of the core, provided on the second filaments, a difference between the first and second visually ascertainable surface characteristics being selected to be sufficient to permit an observer to detect core filament mislocation by visually inspecting a surface of the core structure and determining the presence of the first visually ascertainable characteristics thereon.