. Electric railway journal . Fig. 2—Corrugated Rail Laid on Concrete Foundation Nov. 7, 1908, and several of the most interesting are repro-duced herewith. At that time Mr. Busse enunciated thetheory, which he still holds, that a predisposition to cor- rugation is given in the rail mill and that corrugation isthen developed by rapid braking, quick acceleration, highspeeds which cause hammer blows, lurching due to defectsin truck construction, large radius curves where a tendencyexists for the outer wheels to slide in jerks on the longer. Fig. 3—Badly Corrugated Rail on Triangular Curve ofBerli
. Electric railway journal . Fig. 2—Corrugated Rail Laid on Concrete Foundation Nov. 7, 1908, and several of the most interesting are repro-duced herewith. At that time Mr. Busse enunciated thetheory, which he still holds, that a predisposition to cor- rugation is given in the rail mill and that corrugation isthen developed by rapid braking, quick acceleration, highspeeds which cause hammer blows, lurching due to defectsin truck construction, large radius curves where a tendencyexists for the outer wheels to slide in jerks on the longer. Fig. 3—Badly Corrugated Rail on Triangular Curve ofBerlin Elevated Railway outer rail, rigid roadbeds which fail to take up the blowslike an elastic substructure, etc. Fig. 1 shows a section of a tangent track with slantingcorrugations in paved streets in Berlin. Fig. 2 shows asection of corrugated rail laid on a concrete this rail waves had developed to such a degree that the
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