kept perfectly cool. and ingenuity which he has displayed have at with which it works, the pressure of the steam lbs. on the square inch, that a much higher It may be supposed by some persons that last led to the production of an engine which in the boiler, the expansion in the cylinder, does him a… … curved end next the heater—the end of the positive, be considered an extraordinary re- the lowest to the highest pressure. This flex- cylinder is also of the same form to allow for pressure has been carried in these engines sult even by those most familiar with the expansion and contraction of the…
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