Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 695
oundation forhe columns consists of a bed of concrete spread about 6 ft. below the street surface, on which arelaid heavy flagstones supporting a brick pier 4 ft. high. A cast-iron base for the columns, lastenedby four 2-inch foundation iron bolts, is placed on top of the brick pier which is 4 ft.… … ■jrxrr^f rTrrmTLujr Ir2 l immediately under the track, each track forming a separate structure, connected at intervals by ironarches, as shown in cross-section. The foundation is similar to that of the other road. The track is of the standard gauge. Rails weighing 50 lbs. arc laid on wooden…
Mechanical engineering -- Dictionaries
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
