...H F CORNICK; A C GARDNER; G LIDENTHAL; J H NICHOLSON; W A TAIT; T G H THOMAS; J C L TRAIN; W A FRASER © Thomas Telford and ICE 1923 STRENGTHENING FLOORS BRIDGES RAILWAYS DEFECTS CONNECTIONS TROUGHS TRANSOMS LOADS RIVETS GIRDERS CONTINUOUS CORROSION STRESS HINGING DRAINAGE...

... on the approach spans. The four rails formingthe double lineof way are carried on timber waybeams laidin four continuoussteeltroughs.Thetwoouter troughs form the upperbooms of themaingirders of thenorth andsouthapproachspansand of the internal viaducts. The two inner rail-troughs are carried on cross transoms...

...T B GRIERSON; C GRIBBLE; C J BROWN; C F BENGOUGH; R C MACDONALD; G A GARDNER; J S WILSON; G FITZGIBBON; W A FRASER © Thomas Telford and ICE 1923 STRENGTHENING FLOORS BRIDGES GIRDERS LOADS DISTRIBUTION WEIGHT LOCOMOTIVES REPAIRS TROUGHS DETERIORATION RENEWAL TRANSOMS RIVERS...

... Ibs. per lineal foot. These considerations appear to favour theemployment of steel for transoms and sole-bars, when considerable loads have tobe carried. A combination of steel and timber in aframed structure is un- desirable, because oak and other hardwoods cause corrosion of the metal, and because...

...F FOX © Thomas Telford and ICE 1861 LEVICK PERMANENT WAY IRON TRIALS RAILWAYS METALS DURABILITY RAILS COSTS JOINTS TRANSOMS BEARERS BOLTS SECTIONS EXPERIMENTS SLEEPERS ROLLED TRACK IRON PERMANENTWAY. 259 February 19, 1861. GEORGE P A R K E R BIDDER, President...