Abstract: Losses in nerve sensation are detected, and the affected nerves identified, by a hand-held device which is drawn, and preferably rolled, over the surface of a subject's skin. The surface on the device which contacts the subject's skin is made of a high thermal conductivity material, and when the device is at room temperature, a cooling sensation is experienced by the subject except in those regions where nerve sensation is abnormally low. The device is thus useful in delineating the regions of nerve sensation loss, as a useful step in monitoring certain disease conditions. The device also finds utility as a tool for cold massage.

Abstract: A printing machine that prints on forms or documents from cards having embossed characters thereon takes into account different thicknesses of cards and forms. The machine provides an even pressure downwards.