Horology: time measuring systems or devices – Signalling means – Musical
Patent
1977-12-27
1980-05-13
Truhe, J. V.
Horology: time measuring systems or devices
Signalling means
Musical
368 65, G04B 2108
Patent
active
042021650
ABSTRACT:
A cuckoo clock has a clock mechanism and a pair of whistles for producing the cuckoo sound. An air stream is flowed sequentially through the two whistles by bellowless mechanical structure actuated by the clock mechanism.
REFERENCES:
patent: 465441 (1891-12-01), Weisser
patent: 2574703 (1951-11-01), Paul et al.
Isen Forester W.
Spartus Corporation
Truhe J. V.
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