. Proceedings of the annual convention . DESIRED % DESIRED - Smax extent of head fillet- EXTENT OF BASE DESIRED^^ MAX. f MIN DESIRED^ ^min.^max ELEVATION END VIEW Fig. 1—Beveling of rail ends. Rail 1223 that all concerned may have ample opportunity to study the subject before adoption asManual material, a drawing showing the proposed bevelling is included as informationfor publication in the Proceedings, but not for inclusion in the Manual. Future test work should include a study of the maximum easement length and depthpermissible that will not materially shorten the fatigue life of the bar; t
. Proceedings of the annual convention . DESIRED % DESIRED - Smax extent of head fillet- EXTENT OF BASE DESIRED^^ MAX. f MIN DESIRED^ ^min.^max ELEVATION END VIEW Fig. 1—Beveling of rail ends. Rail 1223 that all concerned may have ample opportunity to study the subject before adoption asManual material, a drawing showing the proposed bevelling is included as informationfor publication in the Proceedings, but not for inclusion in the Manual. Future test work should include a study of the maximum easement length and depthpermissible that will not materially shorten the fatigue life of the bar; this informationto serve as a guide when grinding out cracks on the top fishing surface at bars mid-length. Preliminary tests on 112-lb bars conducted at the University of Illinois haveindicated that a maximum ground area 2 13/16 in. in length and 9/32 in. in depthrequired to eliminate an existing crack did not shorten the fatigue life of the bar. Appendix 7-aEleventh Progress Report of the Rolling-Load Tests of Joint Bars By R. S. Jensen Research Assistant Professor of Engineering Materials, University of Illin
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