Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 389
Fig. 854. Fig. 855. Fig. 854 is a ball-valve, guided in its movement by an open guide-cage, c,which is held down by a set screw in the cover. Globe-valves with this formare on sale. Ball-valves are usuallv small metallic balls on metallic or wooden MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 375…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-799-364.webp)
