TABULATORPONSMACHINE

摘要

A tabulator punch comprises upper and lower crossheads joined together by side plates and a punching head which is displaceably mounted in the upper crosshead and which is connected to a spindle nut mounted on a rotatable threaded spindle. The spindle nut is rotatably mounted in the punching head and has an eccentric the rotation of which is adapted to reciprocate a punching blade and a disc at one end thereof. Disc on the other hand is fixedly connected to the spindle nut and is provided on its outer periphery with a groove which is parallel to the spindle axis and adapted to engage in a guide rail which is also parallel to the spindle and which has spaced-apart notches therein the width of each of these notches being greater than the thickness of the disc.