. Railway age . initeof trunnions. This is the largest and heaviest bascule in the world, scrap value if removed within tlie period of its assumed life. (9)In 1902 the city of Chicago began building a series of trunnion It should bo heavy enough, aside from its grip on the ballast, tobascules over branches of the Chicago river; It has built seven to partially counteract the lifting force of the rail wave,date, some of them being unusually large and heavy structures. The These ties were originally designed for use in tubular tunnels city ot Milwaukee has five trunnion bascule bridges In success
. Railway age . initeof trunnions. This is the largest and heaviest bascule in the world, scrap value if removed within tlie period of its assumed life. (9)In 1902 the city of Chicago began building a series of trunnion It should bo heavy enough, aside from its grip on the ballast, tobascules over branches of the Chicago river; It has built seven to partially counteract the lifting force of the rail wave,date, some of them being unusually large and heavy structures. The These ties were originally designed for use in tubular tunnels city ot Milwaukee has five trunnion bascule bridges In successful where the bearing surface of the tie outside of the rail is restricted,operation. One of the designs illustrated is for use In concrete roadbed, as in The Strauss designs of bascule bridge are claimed to represent tunnels, paved streets, terminals, etc. The tie designed for ordinarythe complete development of the trunnion type. The first one was use may be extended to hold a third-rail bracket. It Is claimed. Strauss Bascule Bridge, Underneath Counterweight Type: St. Louis, Iron Mountain & Southern. 386 THE RAILROAD GAZETTE. Vol. No. 11. that fewer of these need be used to a rail lenglli, and that (, 11 Uroadway, New York City, are muiuf&cturiDg these polMItghter ratlB can also be used without lesneolng the Htablllty of at Mllliken, Suien Uland, N. Y., where complete amngemeolg hare the track. A modification of this tie has been considered. It InvolveaHiibKlliiitlon of lonKlliidinal utrlnKers on the permanent Bteel cr08»tle« liisli-ail of (be wooden blocks. Paul 1). Ford, who was a mem-ber of I he roinniltlee on th<- form of track construction for theInlerljoiouKli Hapid Transit In New York City, recentlycalculated ilial the pre»Hure on the KtrlUKcrs under CooperK E 5i) been made In the bridge and Btructural »hope for getting out thisIiartlcular clasH of struclural work. MANUFACTURING AND BUSINESS. The SanduHky, Ohio, plant of the Saodueky Portla
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Keywords: ., bookcentury1800, bookdecade1870, bookidrailwayage44, bookyear1870
