Multi-surfaced rotary stamping apparatus

A rotary stamping apparatus comprising:

• a plurality of stamp cartridges, each of said stamp cartridges having a use position and at least one non-use position;
• rotatable shaft means for holding said plurality of stamp cartridges faced outwardly, said shaft means having a plurality of edge faces and a polygonal transverse cross-section, and each of said stamp cartridges being slidably mounted on one of said edge faces;
• a gripper case having a plurality of recesses formed therein;
• elevator frame means for supporting said shaft means at its opposite sides, said elevator frame means having an inverted U-shaped configuration in cross-section and an outer end, and said elevator frame means further being slidably mounted within said gripper case and movable between an outer position in which said outer end is positioned outwardly from a plane including one of said stamp cartridges in its use position and in inner position in which said elevator frame means is retracted inwardly from said plane;
• first biasing means for biasing said elevator frame means toward said outer position;
• and
• selector knob means for rotating said shaft means to the desired position, said selector knob mean shaving a back face and a stopper formed in said back face;
• said stopper and said recesses defining engagement means for holding said shaft means in place, said stopper being movable in and out of engagement with said recesses, said engagement means being movable between an operative position when said stopper is in engagement with one of said recesses and in inoperative position when said stopper is out of engagement with one of said recesses;
• and
• second biasing means for normally biasing said selector knob means outwardly away from said gripper case, said selector knob means being movable against said second biasing means to move said engagement means into said operative position.