formulas, because formulas of the shaft. Then both could be con- cannot be established until the steam nected to the same crank, or two cranks action is perfectly understood. We will at 180° could be put one to each cylin- now attempt to trace the diagram for any form of the Woolf engine. der.… … Fig. 2. — to draw the expansion curve. For the cylinders both at one side, gine. The line AB is the axis of press- many ingenious combinations of cylinders ures or the line of zero volumes, and AE have been devised, some being of the the axis of volumes or the line of zero trunk engine form, etc.…
Engineering
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