NEW202502.TXT

 

ON 20250203@9:17:02 AM at page:
On a web page you were interested in at:
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ON 20250221@8:39:24 PM at page:
On a web page you were interested in at:
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James Newton[JMN-EFP-786] Says

A purely mechanical clock which tells the time by "tweeting" out binary numbers where two different tones represent zero or one. The sound would be produced by a slide whistle with the pitch level controlled from a cam. A stack of cams with different patterns for each digit, and the cam to be used selected by the motion of the clock; e.g. the cam stack is slowly raised over the course of the day, and dropped at midnight. Each rotation of the cam plays the selected digit.

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