By 1920, there were 166 tractor companies together turning out more than 200,000 tractors each year; the production of steam traction engines had dwindled to almost nothing. The Smithsonian's ...

An immense amount of time and money has been expended upon new and ingenious cut-offs for steam engines. Each in its turn, as it was brought before the public, was supposed to excel its ...

However, steam engines had their own set of shortcomings ... or multiple cylinders for larger machines. The valve, in turn, ...

Steam engine makers have been- occupied ... occupies no more room than, an ordinary turning lathe. Second—It is as easy pat together as an ordinary stove, and purpose of a stove.