When a shield is divided diagonally, either from right to left, or from left to right, which must be specified, it is said to be per Bend, dexter or sinister, as the case may be. If either of these lines is thickened so as to become a charge it is called "a Bend" (dexter or sinister). If the dexter and sinister dividing Bend lines are combined, a division per Saltire is the result, and if these lines are thickened so as to become a charge, it is called "a Saltire." If the upper triangle in the Saltire is drawn down into a narrow point and forms a charge, it is called "a Pile." There may be several of these, and their number, position, and colour are always stated. If the Saltire lines are repeated so as to cover the entire shield with diamond-shaped spaces, it is said to be Lozengy, and if these lines are thickened so as to become charges, it is called Fretty, and the little bars are interlaced.
If now the dividing lines of a quartered coat and those of a coat divided per Saltire be combined, we get a division known as Gyronny, common in Scottish heraldry.
If a shield is divided by an angular line in a gable form, the two lowest lines of a division per Saltire, it is called per Chevron, and if this line is thickened so as to become a charge, it is called a Chevron.
