. The Street railway journal . SIDE ELEVATION AND SECTION OF BOILERS. DOUBLE ACTING DIRECT DRIVEN AIR PUMP WITH BALANCELEVER engine room and serves for the quick handling of anypiece of machinery or piping. To provide for the lifting ofthe condensers, areas are left in the engine room floor. an excavation over 300 ft. in length and over 40 ft. deepfrom the surface, or 13 ft. below normal river level. Thispipe was surrounded with concrete to make it permanent,and to secure good foundation for the engines above. Con-crete was chosen because of the ease of handling it in dif-ficult places, such a
. The Street railway journal . SIDE ELEVATION AND SECTION OF BOILERS. DOUBLE ACTING DIRECT DRIVEN AIR PUMP WITH BALANCELEVER engine room and serves for the quick handling of anypiece of machinery or piping. To provide for the lifting ofthe condensers, areas are left in the engine room floor. an excavation over 300 ft. in length and over 40 ft. deepfrom the surface, or 13 ft. below normal river level. Thispipe was surrounded with concrete to make it permanent,and to secure good foundation for the engines above. Con-crete was chosen because of the ease of handling it in dif-ficult places, such as under caving banks, without remov-ing bracing in water, etc. These spaces are covered with iron grating that can bereadily removed. Similar provision is made in the floor be-tween the back wall and engine cylinders for reaching thesteam piping and the reheaters. The foundations of thebuilding contain 20,000 cubic yards of concrete, the sidewalls being in some places 7 ft. thick. The whole founda-tion is built as a unit, and has a bed of river gravel upon 132 STRE
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
