25 6 MODERN STEAM PRACTICE . on with his foot while his hands are free to move the steam regu - lating valve and hand lever , which is … base , which has nine openings for ad - mitting the air into the cylinder , and Fig . i59 - — Bottom of Biowing Cylinder . one large opening for its exit . The a , Bottom . bb , Vaive openings . c,Discharge f orme r openings are fitted with flap P s ’ valves , made of an elastic material , and…
e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.
![An illustration from [Volume I.], leaf 283](https://img.insideoutlibrary.com/img/1024/erara-31314765-283-1.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-473-276.webp)
