. The Street railway journal . quick admission and closure, and secure a maximum portopening with minimum valve travel. The short and di-rect steam passages bring down the total clearance to thelowest point. The exhaust valves are operated independ-ently of the steam valves, so that the compression is notincreased, as steam is cut off shorter, as is the case withsingle valves. Fig. 92 is a horizontal section of a tandem compoundengine manufactured by this company, and Fig. 93 a topand side view on a small scale, showing the same engineconnected to two electric generators. Fig. 93 shows lat-era
. The Street railway journal . quick admission and closure, and secure a maximum portopening with minimum valve travel. The short and di-rect steam passages bring down the total clearance to thelowest point. The exhaust valves are operated independ-ently of the steam valves, so that the compression is notincreased, as steam is cut off shorter, as is the case withsingle valves. Fig. 92 is a horizontal section of a tandem compoundengine manufactured by this company, and Fig. 93 a topand side view on a small scale, showing the same engineconnected to two electric generators. Fig. 93 shows lat-eral extensions of the bed-plate which carry the dynamosand the outer pillow blocks beyond the same. The valves FIG. 92.—HORIZONTAL SECTION OF WATERTOWN TANDEM COMPOUND ENGINE Total weight, 22,000 lbs.; of wheels, 8,oco lbs.; at125 lbs. pressure; without condenser, 200; speed, The company refers particularly to installations in the. Street Ry. Journal Street FIG. 94.—FLY-WHEEL GOVERNOR HORIZONTAL SECTION OF WATERTOWN 4-VALVE STEAMCYLINDER shown in Fig. 92 are balanced by cover plates on the top,provided with recesses corresponding to those in the valveseat, and there are additional ports through the valve bymeans of which double ports are secured at the momentof admission and release. The valve on the high pressurecylinder is operated by a fly-wheel governor shown inFig. 94, that on the low pressure cylinder by an independ-ent eccentric. Special pains have been taken in the construction ofthese engines to prevent the waste of oil. Every part re-quiring oil has a separate independent oiling device. and 96 represent longitudinal and cross sections of amain bearing, from which it will be seen that there is an power house of the Cortland & Homer Street RailwayCompany, Homer, N. Y., and that of the Port-NorfolkRailway Company, Norfolk, Va. the; dick & church engines op the phoenixiron wopk
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
