Calendar mechanism with automatic month adjustment - has month end and month class cycling switches or twelve month cycling switches

摘要

The calendar mechanism automatically accounts for the variable number of days in a month. It has a day cycling switch and makes and breaks current circuits with two or more cycling switches. The electrical end-of-month switching arrangement consists of either end-of-month cycling switches and month class cycling switches or of twelve month cycling switches. Two pole end-of-month cycling switches may be used in place of 3 pole switches. A year class cycling switch or year class cam switch may also be provided.