Real Passenger Pneumo (1870) Rapture might have had at least one system of this kind (maybe you could visit it in the MMORPG?)
Appears on these pages
Sitemap Click on Pictures to see their full-sized version.
Sitemap Just a few images of REAL things (things the artists/designers merely had to look 2...
Sitemap Page of Drawings of various mechansims and ideas for a working Rapture