...upon the method of accomplishing these important objects, it occurred to Mr. Watt in the year 1765, that if a communication were opened between a cylinder...which was exhausted of air and other fluids, the steam being expansible, would immediately rush into the empty vessel, and continue to do so till it had established...

...itself, should be cooled down to 100°, or lower, where that was possible. The means of accomplishing these points did not immediately present themselves;...in 1765 it occurred to me, that if a communication wore opened between a cylinder containing steam, and another vessel which was exhausted of air and...