The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 125
sed is that due to thepressure upon the horizontal surface A, Fig. 1, on the ring A A A A,Fig. 2, whilst the real area through which the air and water escapeis that represented by B, Fig. 1. Whatever pressure exists upon theside of the valve C, is balanced by the equal and opposite pressureupon the… … The species of valve applied to the air pump of this engine is cer-tainly superior to that employed in engines in general; but we believethat the application of the slide valve to air pumps would be preferablestill. One slide valve would perform the united functions of the footvalve, the bucket…
Architecture · Civil engineering · Science
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
