| 摘要 |
<p>A double clock esp. for use in chess tournaments has twin time indication with setting mechanisms which alternately block and release each other. A single drive mechanism (6) engages alternately with the two time indicators (2', 2"). Pref. the drive mechanism is a conventional 12-hour clock mechanism and the two time indicators are coupled by separate intermediate gears (9', 9") to a common output shaft (7) from the clock mechanism.</p> |
