phragm. ing, the span will fall through 40°, leaving the other 40° On trial, this arrangement works well with a single seen in the foreground of the picture. The Plymouth of travel to be operated by the closure mechanism. Division tracks cross the channel at an angle of forty- The opening and… … tical hangers. is used to Owing to the break up the fact that the bridge is on the skew, each span contains of a trussed operating-strut, provided on its under side asphalt pavement of Bedford Avenue. This pave- one long and one short truss, which are respectively with a rack which is engaged by a…
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