Steam engine makers have been- occupied ... First—The entire machine, including its boiler, occupies no more room than, an ordinary turning lathe. Second—It is as easy pat together as ...

Before the steam engine can be called an economical power, our modern system of boilers must be immensely improved, or an entirely new system of applying the heat to the water must be contrived.

By contrast, the steam engines that preceded the internal combustion engines and electric trains of today ... to the valve and the other to the boiler, and the motion allowed for constant supplies ...