MEJORAS EN LA CONSTRUCCION DE TAMBORES DE CONDUCCION CIRCUNDANTE, LIBRES DE EMBORRONAMIENTO, PARA MAQUINAS DE IMPRENTA ROTATIVAS DE PLIEGOS

摘要

Smear-free transfer cylinder for sheet-fed rotary printing machines having a cylindrical casing formed with blow holes distributed over the entire sheet-carrying peripheral surface of the cylinder, includes air distribution elements respectively disposed in the blow holes for influencing blowing air flow out of the blow holes for forming a uniform air cushion, the air distribution elements being formed of air-permeable, elastic and slightly compressible material having a low specific gravity.