Tactile feature tool

摘要

An embossing head for use in a rotary printing press has a raised embossing stamp, a constraining means for constraining motion of the embossing stamp along a radial direction, and adjustable positioning means for stopping radially downward motion of the embossing stamp at an adjustable lowermost position for determining an adjustable radial height of the raised embossing stamp. A number of embossing heads may be mounted independently to annular collars of the press to enable free positioning of the corresponding embossments in both dimensions of the sheet material. The adjustable positioning means enables fine height selection and adjustment of each embossing stamp individually so as to enable and facilitate the production of embossments on sheet material within specified tolerances reliably over numerous print cycles.