If engineering choices a hundred years ago had been only slightly different, we could have ... Corliss valves, a technology from c.1850 that used rotating valves and improved steam engine ...

Technology tends to have a way ... Savery's machine had a valve, a water "tank" of sorts, and another area to direct the steam from the device's water valve downward. The engine's water boiled ...

The governor valve is therefore operated by resistance which increases as the undue velocity of the engine increases, to cut offthe steam early when necessary. Measures have been taken to secure a ...

Steam engine makers have been- occupied ... such aa the float, level, safety, valve, alarm whistle, and steam gauge. ? The engravings suppose that the supply jiSimg* e, is connected withthe ...