A rotary machine element has at least one functional part performing movements into stop positions, which stop positions are nominal stop positions or mechanical terminal stop positions and are functionally correlated. Thus, a very compact, high density memory array can be achieved. Therefore, outside areas of the ventilation hooded microwave oven can be efficiently used, and the ventilation hooded microwave oven can be reliably prevented from overheating. The container is formed of multiple thermoplastic components which are assembled during installation on the traffic lane surface. An upper plate is positioned above the punch so as to hold the punch and to move the punch in a vertical direction within a predetermined range.