. American engineer and railroad journal . operating rigging is patented. TRAIN RESISTANCE FORMULA. Pennsylvania Railroad. In order to comply with the requirements of the Federal lawin regard to locomotive ash pans, the Pennsylvania RailroadCompany considered quite a number of different designs. Afterexperimenting with several of the most feasible, the designshown in the accompanying illustration was adopted for useon the Pennsylvania System and previous to January i, 1910,when the law became effective, all of the locomotives owned oroperated by the Pennsylvania Railroad Company were equipped
. American engineer and railroad journal . operating rigging is patented. TRAIN RESISTANCE FORMULA. Pennsylvania Railroad. In order to comply with the requirements of the Federal lawin regard to locomotive ash pans, the Pennsylvania RailroadCompany considered quite a number of different designs. Afterexperimenting with several of the most feasible, the designshown in the accompanying illustration was adopted for useon the Pennsylvania System and previous to January i, 1910,when the law became effective, all of the locomotives owned oroperated by the Pennsylvania Railroad Company were equipped In a communication to the Engineer (London), Lawford , in discussing the paper on Train Resistance, recently pre-sented by Prof. Schmidt before the Master Mechanics Associa-tion,* presents the following formula: 106-I-2V r = -I- -I- .001V2 W-i-i r ^ resistance of car in lbs. per ton ( lbs.).\V = weight of car in tons (2,000 lbs.).V = train speed in miles per hour. which he has derived from Professor Schmidts data, and states. Ash Pan made of 4 Tank Steelusing 2 Rivets about 5 Pitchunless otherwise specified. SELF-CLEARING ASH PAN USED ON THE PENNSYLVANIA RAILROAD. with ash pans meeting the requirements of the law, a large ma-jority of them being fitted with this style of pan. As far as the pan proper is concerned there is nothing par-ticularly novel about it. It has a large capacity and is verysubstantially built, flanged pieces replacing straight sheets andangle irons to a large extent. A liberal air opening is providedaround the top. It is in the arrangement of the doors that the principal pointof interest lies. The whole bottom of the pan is formed bydouble doors hinged at the sides and overlapping each otherin the center, so that any slight variation or warping will notleave an opening between them when they close. Near the bot-tom of the pan itself, on each side, are supported in suitablebrackets long shafts which are square except where they passthrough the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
