Modified data and time shutter type display - permits day changing without altering number of month days and vice versa

摘要

The date and hour shutter display system has a two lever mechanism. The two levers (31, 32) are associated with a rod mechanism (34, 35) of one series of controlled shutters. The levers can be operated manually and separately. The two levers (31, 32) are parallel to each other and can pivot around the same axis under the effect of th same cam, (29) against the force of their respective springs (32'). When used with clock systems controlling a calendar, it is possible manually to operate the lever corresponding to a series of days of the month, and also easily adjust the day of the week with respect to the day of the month.