| 摘要 |
<p>The invention relates to an universal perpetual calendar, meant for obtaining day evidence in all practical, scientifical or of other human nature fields of activity. According to the invention, the calendar consists of some concentric disks (I, II, III and IV) superposed and assembled by a common axle (a) for centering-rotating, of the dismountable primer or nut screw type, which allows their independent rotation, of which a lower disk (I), which has a dial (C1) whereon there are marked the days of the week (L, Ma, Mi, J, V, S and D), an intermediary lower disk (II) which has a dial (C2) whereon there is marked the chronological order of the days of a month (1...31), an intermediary upper disk (III), which has a dial (C3) whereon there are marked the years and the first and the last day of the current month (AN1, AN2, AN3 and AN4), on the rest of the disk there being marked the months of the year (L1...L2), the order number of the weeks of the year (S1...S52), the day of the new year (ZI AN O) and the day of the leap year (ZI AB OO) and an upper disk (IV), respectively, which has a slot (f) for viewing the elements of the intermediary upper disk (III).</p> |
