If I had to come up with Svoros, I’d say in the case of watering of grass on a timer, the timer opens and closes the valve that controls the water flow.. That might be the kula here? I don’t know exactly. Regarding the coffee maker, the timer allows the machine to run. The machine cooks water, which I believe Bishul Achar Bishul applies, the water flows through the grounds and the filter (related to Borer or similar Melacha). The pot usually sits on a “hot plate.”
Just my Svoros, not halacha, but it’s a way to analyze the situation.
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