Yamaha Music Sirens

[Dorianelevator]

bit late, but i found a map (not yours) that contains even more of them, it can be found here :
https://www.google.com/maps/d/viewer?mi ... 567588&z=5
i cannot belive how many there are on that map, but apart from that i can also tell you that a japanese channel made a up-close video of the siren on the iga city hall, and its here : https://www.youtube.com/watch?v=csTZcYn_DPQ (and at 4:42 the siren activates)

[clarksburg_1000t]

Ports
I know that the actual number of ports on each rotor is pretty unknow so, I decided to calculate the ports for the Tokiwa siren and here are my results..
F3-6 port
G3-7port
A4-8 port (Very sharp)
B♭4- ?8 port through gear reducer
C4-9 port
D4-10 port
E4-?12 port
F4-12 port
G4-14 port
A5-16 port
6 port came from an image of the siren
The rest came from a generator by nconvert and Ryan. Find it HERE

[Thesaurus_1003]

Found both Iga City Hall's (https://www.youtube.com/watch?v=eUMRuToHg4s) and Yawatahama's music siren (https://www.youtube.com/watch?v=DYr6kTtonyA) in close and detailed view

[clarksburg_1000t]

bit late, but i found a map (not yours) that contains even more of them, it can be found here :
https://www.google.com/maps/d/viewer?mi ... 567588&z=5
i cannot belive how many there are on that map, but apart from that i can also tell you that a japanese channel made a up-close video of the siren on the iga city hall, and its here : https://www.youtube.com/watch?v=csTZcYn_DPQ (and at 4:42 the siren activates)

Found both Iga City Hall's (https://www.youtube.com/watch?v=eUMRuToHg4s) and Yawatahama's music siren (https://www.youtube.com/watch?v=DYr6kTtonyA) in close and detailed view

All these videos have been found before and are in Evan's playlist
The map was made by IHaveAName and can be found on page 11.

[clarksburg_1000t]

Quick bump:
The Iga City Hall music siren is now protected as a "Tangible Cultural Property." Unfortunately, this article is behind a paywall so I can't read it. I guess this means it's a historic site like the NRHP here in the United States.
Link:https://www.chunichi.co.jp/article/874045?rct=mie

[Pineapple1217]

Hello! I'm Music Siren fan from Japan.

I'm so glad that you guys love them from far away countries and I was surprised by the huge amount of knowledge, so I made an account. Nice to meet you.

Supplementary information on patent materials.

To be precise, it is called a 実用新案 (Jitsuyoh Shin-an "utility model rights" ) and is distinguished from a patent.

Moreover, this application was rejected for legal reasons, leaving only minimal information for public notice that a patent with the same content could not be obtained, and a Google search for "多声サイレン装置" in Japan yields no hits.

And this is an old document and has not been converted to text.

I respect you from the bottom of my heart for having arrived at this information on your own.

武田 光資郎(Takeda Koshiro) invented 14 patents during his tenure at Yamaha; his tenure was confirmed in 2011, but he was apparently representing a different company in 2015.

井上 昭史(Inoue Akifumi) was the president of a company (Yamaha Metanics) established by splitting Yamaha's metal business, but his name has not been seen since the stock was transferred in 2007.

[Pineapple1217]

From https://www.asahi.com/articles/ASS441CD ... B00GM.html

The city's Board of Education has designated a music siren in the center of Iga City, Mie Prefecture, as a tangible cultural property (historical material).

(omitted).

In the late 1950s, when many citizens of Iga City had to flee from air raid sirens during the war, there was a growing movement, mainly among the private sector, for "music rather than sirens. In March 1959, the siren was installed on the roof of the former Ueno City Industrial Hall with the help of donations, etc. In February 1982, it was interrupted because it could no longer maintain its pitch. The city replaced it with new equipment and changed the location to the then Ueno City Hall, and in January 1983, it was restored.

(omitted).

The sound source equipment such as motors and impellers installed on the roof of the former Ueno City Hall and the control unit on the second floor of the same building were designated as tangible cultural properties this time. According to the municipal board of education, this is the first time that an industrial item has been designated as a cultural property.

Use DeepL Translate.

[Pineapple1217]

The following two points are now certain about the first generation of music sirens that once existed in 松山市 Matsuyama City, 愛媛県 Ehime Prefecture.

1. A panel in 城山公園 Shiroyama Park (松山城 Matsuyama Castle) states, "After World War II, a music siren was placed at the 太鼓門南続櫓跡South Connecting Turret of TAIKO (Drum) MON Gate, which played music at 6:00 a.m., noon, and 6:00 p.m. respectively. The music siren was placed at the site.

2. In the 松山市史料集 第13巻(chronology of Matsuyama City History Vol. 13), it is written, "On September 9, 1945, the siren of the time signal in Shiroyama was replaced by a music siren.

The specific location of the installation and the date of commencement of operation were found.