he had used a great number of brass and iron boiler tubes with apparently equal success, but brass tubes had been generally preferred for locomotives working at a high pressure, because there is ...

copper was found to surpass brass. The evaporative powers, relatively, of the three metals in tubes for steam boilers, he found were as follows: Iron, 100 ; brass, 125; copper, 156. The ...

The Brasilia Lady comes with a 300 ml brass boiler, a pump and four buttons for power, coffee, hot water and steam. A 3-way AC solenoid valve, wired directly to the buttons, selects one of the ...