. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ress in rail 243 Zimmerman, H.: depression of tie in ballast 189 effect of dynamic loading 69 elastic curve of tie 172 stresses in the rail 217 Zinc chloride treatment (see Treated ties). Zores iron 173 N ° VV , X v -. * l, ^ C* ^v *>* .y %. *< % *** 0 ^ ^ ^ ^ .^v v° °-, ^\N ;* ^ •^ ^^ „ > v> ^.oO ■4. -/* . \° °* ,0 O V < •^ ^ r»V s ,, r. V ^ ^. -., *• -f1 \^ ^, <$*%, LIBRARY OF CONGRESS ftl iiiiiiiuiiiiii 0 021 218 399 4. NEW YORKD. VAN NOSTRAN


. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . ress in rail 243 Zimmerman, H.: depression of tie in ballast 189 effect of dynamic loading 69 elastic curve of tie 172 stresses in the rail 217 Zinc chloride treatment (see Treated ties). Zores iron 173 N ° VV , X v -. * l, ^ C* ^v *>* .y %. *< % *** 0 ^ ^ ^ ^ .^v v° °-, ^\N ;* ^ •^ ^^ „ > v> ^.oO ■4. -/* . \° °* ,0 O V < •^ ^ r»V s ,, r. V ^ ^. -., *• -f1 \^ ^, <$*%, LIBRARY OF CONGRESS ftl iiiiiiiuiiiiii 0 021 218 399 4. NEW YORKD. VAN NOSTRAND COMPANY Twenty-five Park PlaceLONDON CONSTABLE & COMPANY, .S4 Copyright, 1913D. VAN NOSTRAND COMPANY \ ( Stanbope ipress . COMPANY :M6058 PREFACE In this work the author has endeavored to systematize the knowledge inexistence upon the subject, and to present in a concise yet clear form the mostimportant features of the problem. The first chapter treats of the development of the present design of sectionwith a comparison of the American rails with those in use on English Railwaysand on the Continent. In chapters two to five, inclusive, the external forces acting on the railand the corresponding stresses they produce in the rail are discussed. Thenecessity and desire for information on this subject are widespread. While aconsiderable amount of general information is to be found scattered throughthe technical press and in the proceedings of the various Railway Associationsand Engineering Societies,, yet very little has been published deasteelrailstheirh00sell


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