The Universal Adjustable
The universal adjustable mold is the one most generally used. By removing the liners and substituting others, slugs of any length from 5 to 30 picas and from 5 to 14 points in body may be cast. All standard molds will cast 30-pica slugs.
The right-hand, or constant liner, is marked for thickness only. It is not necessary to change this liner unless the slug thickness is changed.
The left-hand liner is marked for thickness and length. The number stamped for the length, subtracted from 30, gives the length of slug which will be cast. For example, if a 13-em slug is wanted, use liner number 17, which allows the opening in the mold to be the required length. When ordering liners for these molds, always specify thickness and length of slug to be cast; also specify U. A. mold.