Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 797
jago, and been in constant use ever since, it may be presumed that their general introduction in thedouble-acting steam-engine, where balanced valves are used, h.as been prevented or retarded by theditnculties presented for their adaptation to that purpose. These difficulties might be of the… … ilic advantages gained by tlieir superiority in principle may not be so counterbalanced by the cfitficultic?3above named, as to prevent their general introduction. To elfect this, the valves are arranged on thelame level, as this is the arrangement most generally adopted in engines having balanced…
Mechanical engineering · Mechanics · Engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-131-45.webp)
