Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 232
ar circle makes withthe line parallel with the valve-seat will be determined by theangle which the valve-crank makes with the line through thedead-centre when the valve is at its extreme point of throw;in which case the radius-vector becomes equal to the diameter.If there is neither lap nor lead… … a lap, then, at the dead-centre of the piston, the valve shouldbe distant from its central position a distance equal to suchlap, and the radius vector for a horizontal engine, which has 178 MECHANICAL ENGINEERING OF POWER PLANTS. been assumed in all this discussion, should have a value equalto this…
Mechanical engineering · Steam power plants
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-214-129.webp)
