Identifier: comparativetests00acke (find matches)
Title: Comparative tests of railway tie plates
Year: 1909 (1900s)
Authors: Ackemann, Henry Conrad
Subjects: Railroad ties Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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at the bottom,vhioh aro intcni-^l to ro^iet ^pr-^aiin^. But tho loviocp^ovel of litlf^ assistance and tho plate slid quitf3 freely.The results of (no. 4) are not platted because the plateswe^o so deeply imbedded under a vertical loal of 35,000 lbs,that the top of the plate sank belov the tic and in movinghorizontally the whole end section of the plate would re-sist such motion. The poor results of plate (no, 5) aredue to the fact that the vortica load vould cause the endsof the plate to bend up anl then the -vhole plate woiild slipalong tho tie in regular toboggan slide fashion. Plate14 seems to give tho permanent set, but the results are ofvery little value iue to the imperfections of the apparatus,TYie t^o plates A beveled at an angle of 15 degrees permitthe rail to spread outnard vithout ^ny loss of energy, butthey ^/oull resist an^r motion in the opposite direction sothat the resilience of the lateral motion is more than thedifference between Plates 13 an^l 14 would tend to sho/.
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