Electric numbering machine

In an electric hand numbering machine, including:

• a pulse motor;
• a pair of support plates;
• a driven shaft operatively connected with said pulse motor so as to be rotated thereby, said driven shaft being carried by said pair of support plates;
• a figure wheel fitted to said driven shaft and rotating integrally with said driven shaft upon rotation thereof are said pulse motor;
• a drum;
• means operatively cooperating with said drum for rotating said drum;
• means operatively cooperating with said drum for sliding said figure wheel along said driven shaft, to a print position when printing and to an original position after printing, by rotation of said drum in opposite directions, respectively;
• means for rocking said pair of support plates, said rocking means including actuating means and a connecting mechanism operably interconnecting said actuating means with said support plates so as to rock said support plates and said driven shaft carried thereby, and to in turn rock said figure wheel fitted to said driven shaft against a surface of a sheet to effect printing;
• electric control circuit means for controlling an operation of said means for sliding said figure wheel and an operation of said means for rocking said pair of support plates;
• and
• an ink roller device operatively cooperating with said figure wheel,
• the improvements wherein:
• said means for rocking said support plates is provided with means operatively cooperating with said driven shaft and said support plates for minutely rotating said figure wheel in accordance with the rocking angle of said support plates so as to maintain parallelism between the surface of a printing figure of said figure wheel and said surface of said sheet to be printed;
• and
• said pulse motor is fixed to one of said pair of support plates such that a driving shaft of said pulse motor is disposed substantially coaxially with the axis of rocking movement of said pair of support plates.