These two birdish figures talk very different languages. One speaks with an airy fluting voice, expressing its organic components: wood and leather; the other’s rasping stridulatory tongue is generated by hard-edged mechanisms. These creatures will never understand each other.
Their beaks are exhausted by bellows driven by eccentrics on the input shaft. Gears connected to that shaft drive a camshaft at a much lower speed which controls valves that leak air from either creature when it’s the other one’s turn to speak. The piping sound is made by a three-lobed cam on the input shaft pulsing a bellows to puff air into a whistle. The action is shut off by a cam on the slow shaft which collapses the bellows beyond the reach of the first cam and follower. The rasping sound of the alternate voice comes from a Delrin finger rubbing against the toothed section of the circumference of a Tufnol wheel rotating on the slow shaft.
Height 250mm x Width 210mm x Depth 70mm