| 摘要 |
Clock with mechanism for striking one two-note tone on the quarter hour, two two-note tones on the half hour, three two-note tones on the three quarter hour and, on the hour, a single note tone corresponding to the particular hour indicated. A latch and rack structure control the number of strikes at quarterly fractions of the hour and the rack and a snail cam control the number of strikes at the hour.
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