Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 711
the n\\ slmbe of piston; also ashort reversing valve bushing, or cap. not makinga perfect Joint at top of the bushing. I will give the air-pump men a plan of a moreconvenient way of handling the pump in Ihe shopthan I have seen anywhere in my travels. I havea portable bench, 211 high, with two… … versing valve chamber are three ports, nearly hori-zontal, the top one for live steam to top of re-versing piston; the other two exhaust ports. Theseare divided by partitions of iron; if through a flawor sand-hole these ports should become connectedwith the lower exhaust port, it would cause…
Railroads · Locomotives
Internet Archive · Carnegie Library of Pittsburgh · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-210-123.webp)
