tocsin

hätäkello, hälytyskello

hälytys An alarm or other signal sounded by a bell or bells, especially with reference to France.
1804, The Times, 23 Aug 1804, p.3 col. C

At half-past one, on the sounding of the tocsin (or bell of the public-house) about fifteen persons were collected, when the Rev. J. Bromley was called to the chair.

As she entered the projection theatre the soundtrack reverberated across the sculpture garden, a melancholy tocsin modulated by Talbert’s less and less coherent commentary.

I'll ring the tocsin, I'll have Saint-Antoine out. I can put twenty thousand armed men on the streets, just like that.