Identifier: electricrailwayr17amer (find matches)
Title: Electric railway review
Year: 1906 (1900s)
Authors: American Street and Interurban Railway Association
Subjects: Street-railroads Electric railroads
Publisher: Chicago : Wilson Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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pressure which causes the skewing of the locomotivewheel base. This is due to different assumptions made bythe computers as to the position of the center of rotation ofthis wheel base, as to the influence of the movable front axle,and as to the values of the coefficients of friction. 388 ELECTRIC RAILWAY REVIEW Vol. XVII, Xo. 12. The problem of the forces required to skew a rigid loco-motive wheel base around a curve is one of great complexity.I have seen in print only one discussion of it. namely, thatgiven in Wellingtons Economic Theory of Railway Loca-tion. but this discussion states general principles only with-out formulas or numerical computations. In my opinion, a the pressure as distributed over two spikes, the factor ofsafety is 3.4, which is satisfactory. These computationshence indicate that the accident must have been due to someother cause than the radial pressure developed under thenormal action of the locomotive. In justification of the assumption that the pressure was
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Locomotive revolving ahout E. Guiding effect at H = 10,70(1 lb. Spike shear at H = P — Friction at H. Frame momentOutward thiust at H = P = — ln.Too 108 + Radial component at D + Centrifugal effect at ii. Speeo1 a/ H Friction &es/G?0ncG Rigid Wheel Base c> O oeta/nst *-a,t lUlcaa Auitnj P 5pifieS/IC3rof J A C D S H p of H P or H 40 -380 5S30 6770 6770 020O S2BO O20O 6/zo 626o 78bO 463 O SO 1970 SI30 6340 6340 6720 672o 6080 74 SO 730 622 O 79SO <77WO 60 74-SO 46S0 SBIO 4690 72SO 8170 *eeo 1/230 3060 S46o 0/3 O <?eso 70 13030 4ISO SZ60 3640 70OO S420 JSOO JS390 S970 7S70 e/7o oeac SO 21050 34IO H1BO I0IO 65 BO II2SO I73Q 2//60 9S/0 ISOZO /02O 8Zoo <777o New York Central Woodlawn Wreck—Data for Steam Locomotive.

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