. Eisenbahn- und Lokomotivbau: Eine praktische Zeitschrift für Triebkraft und Schienenfahrzeuge. 960h.p. 2. Was ist die Pferdestärke einer Lokomotive mit einem Gewicht von 149,600 lbs., Cylin-ders 20x24 ins., Fahrer 46 ins., 140 lbs.?!Teamdruck. 8 Räder und alle dri-2. Würde der Zug am vorderen Zugpendel des zweiten Motors in irgendeiner Weise die freie Bewegung des Lastwagenmotors entflammt, die zu einer Entgleisung des zweiten Motors führen könnte, als wenn nur ein Motor im Zug wäre? A. – das Element der Flexibilität in einem Zehnrad-Motor, das heißt, mit einem Vierrad-LKW und sechs Antriebsrädern,
1823 x 1370 px | 30,9 x 23,2 cm | 12,2 x 9,1 inches | 150dpi
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. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 960h.p. 2. What is the horse power of a lo-comotive weighing 149, 600 lbs., cylin-ders 20x24 ins., drivers 46 ins., 140 lbs.?!team pressure. 8 wheels and all dri- 2. Would the pull on front drawbarof the second engine in any way aflfectthe free movement of the engine truckthat would be liable to cause derailmentto second engine any more than if therewas only one engine on the train? A.—The element of flexibility in a ten-wheelengine, that is, one with a four-wheeltruck and six driving wheels, cannot inany way be disturbed by drawbar pull.A ten-wheel engine when poorly de-signed or with weight badly distributedis not a safe engine at high speeds. Ifthere is too little weight on the truckit cannot guide the engine properlyround curves or through switches, andthere is liability to derailment. A doubleheader, so called, is always much saferthan trains having one engine in frontand one behind. This can be illustratedby observing how readily a chain canbe pulled in a straight line and how. BRIDGE WRECKED BY DY-NAMITE AT NORVALS POINT. SOLTH AFRICA. vers? A.—At 20 miles an hour, or 146revolutions per minute, the horse powerwould be 635. The simplest and best methods of cal-culating horse power will be found atpages 285-293 in Twentieth CenturyLocomotives, published by the AngusSinclair Co. (17) W. P., of Calgary, writes:I. Is it considered good practice todouble head lo-wheel engines weighingfrom 65 to 85 tons on passenger trainsrunning at a speed of from 35 to 50miles per hour? A.—The practice ofdouble heading should be resorted toonly under stress of necessity. Many oc-casions arise, especially during winter, when two engines are necessary to takea train through snow drifts. Undersuch conditions the speed is not gener-ally maintained at the highest. easily it will buckle if an attempt is madeto push it. In all double headers thestronger engine should be in front and
