. Electric railway journal . CORRUGATION DEVELOPED ON LEEDS RAIL AFTER PASSAGE OF 523,350 CARS AND 300,000 CARS RESPECTIVELY was detrusion of the metal in the rail head. To over-come the defects mentioned, Mr. Holt had designed arail with a curved head of 12-in. radius which was putinto operation in Leeds in 1910. This is shown in cross-section in an accompanying illustration, which shows aworn tire in contact with a new rail. The operationof this rail has been satisfactory. Although Mr. Holtfavored a curved wheel tread contour no alteration hadbeen made in the contour of the wheels in Leeds.
. Electric railway journal . CORRUGATION DEVELOPED ON LEEDS RAIL AFTER PASSAGE OF 523,350 CARS AND 300,000 CARS RESPECTIVELY was detrusion of the metal in the rail head. To over-come the defects mentioned, Mr. Holt had designed arail with a curved head of 12-in. radius which was putinto operation in Leeds in 1910. This is shown in cross-section in an accompanying illustration, which shows aworn tire in contact with a new rail. The operationof this rail has been satisfactory. Although Mr. Holtfavored a curved wheel tread contour no alteration hadbeen made in the contour of the wheels in Leeds. In the present article Mr. Holt states that many otherBritish tramways have adopted convex rail heads, andthat the British engineering standards committee issaid to be contemplating alterations to its rail sectionsin this direction. He then quotes at length from anarticle by R. C. Cram appearing in the issue of theElectric Railway Journal for Dec. 25, 1915, page1246. He agrees with Mr. Cram in concluding that quotes Mr. Peli
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