. The street railway review . SCHERZER ROLLING LIFT AT NORTH HALSTED ST., CHICAGO-OPEN AND CLOSED. time. To build new swing bridges which artificially obstruct thecenter or bust part of dredged and navigable channels, is inex-cusable in view of the progress made in the art of designing andconstructing movable bridges, and must necessarily cause finan-cial and other losses to railroad and street railway transportationcompanies and the general public. The slow movement of vessels through the narrov; side openingsprovided by swing bridges obstructs and delays street railway,railroad, high
. The street railway review . SCHERZER ROLLING LIFT AT NORTH HALSTED ST., CHICAGO-OPEN AND CLOSED. time. To build new swing bridges which artificially obstruct thecenter or bust part of dredged and navigable channels, is inex-cusable in view of the progress made in the art of designing andconstructing movable bridges, and must necessarily cause finan-cial and other losses to railroad and street railway transportationcompanies and the general public. The slow movement of vessels through the narrov; side openingsprovided by swing bridges obstructs and delays street railway,railroad, highway and vessel trafiic. The swing bridge must spantwo narrow side channels even though one channel only is re-quired. The swing bridge in opening or closing moves in a hori-zontal plane and makes useless valuable dock and other swing bridge must always be made as narrow as possible so thus absolutely preventing the many disastrous accidents commonto the swing bridge when opened: without additional cost thebridge
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
