Dials and a Counter
I saw this control panel at the London Museum of Water & Steam. I think, with the reference to Hathorn Davey on the counter, that this is on the Hathorn Davey triple expansion engine.
Compared with many of the other operating steam engines in the museum, this is of fairly modern design, representing the most common type of pumping engine built for waterworks after about 1900.
The triple expansion engine is seen as an intermediary stage in the development between earlier beam engines and the later internal combustion engines.
The Hathorn Davey example at the museum could pump 6.3 million litres of water in 24 hours. It last worked in 1964 but was returned to steam power for demonstration purposes in 1980.
Dials and a Counter
I saw this control panel at the London Museum of Water & Steam. I think, with the reference to Hathorn Davey on the counter, that this is on the Hathorn Davey triple expansion engine.
Compared with many of the other operating steam engines in the museum, this is of fairly modern design, representing the most common type of pumping engine built for waterworks after about 1900.
The triple expansion engine is seen as an intermediary stage in the development between earlier beam engines and the later internal combustion engines.
The Hathorn Davey example at the museum could pump 6.3 million litres of water in 24 hours. It last worked in 1964 but was returned to steam power for demonstration purposes in 1980.