The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 182
equal to 121b. on the square inch, the shaft making 50 revolutions perminute. Note.—The direct pressure or force of the steam lo turn the engine roundin the required diiection, is marked on the Table, + pressure, and thi oppositeir force resisting the motion in that direction, — pressure, of… … Fig. 3.
Architecture · Civil engineering · Science
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