Useful Information for Practical Men Compiled for E. I. Du Pont de Nemours Powder Co., Wilmington, Delaware

Useful Information for Practical Men Compiled for E. I. Du Pont de Nemours Powder Co., Wilmington, Delaware

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... locomotives are made in addition to those given in tables above, but those selected represent class most used on public works. Ex Ample.--It is desired to haul a load of 80 tons of cars and lading regularly up a grade of 75 feet per mile. What is the smallest saddle tank locomotive advisable? Adding 50 to 100 per cent. as an average, say 75 per cent. = 60 tons to 80 tons gives 140 tons. Table gives 19 as percentage for a 75 feet grade. (140 X 100)-i-19 = 733 tons (disregarding fractions). A locomotive of 733 tons capacity on a level is thus indicated; and by examination of tables it will be seen that "back truck" locomotive, 10 x 16 inch cylinders, hauling capacity on level 750 tons, is best suited to this case. LOCOMOTIVES FOR CONTRACTORS' WORK. 10 x 16 cylinders is usually smallest size of locomotive desirable. Owing to constant shifting of track, narrow gauge most desirable, say 24 to 30 inches. One locomotive, or two if haul long and grades steep, will keep a steam shovel busy. GENERAL DIRECTIONS FOR ORDERING. In ordering locomotives state following: 1. The gauge of track (exact space in clear between rails). 2. The kind of fuel. 3. The height of the center of car couplings above rail. 4. The length of road, weight of rail and radius of sharpest curve. 5. The steepest grade, with its length, for loaded cars to go up (also the same for empty cars if they return empty). 6. The number of cars to be hauled in each train, and the weight of each car and of its load. 7. The total amount of freight to be carried one way daily. IRON AND STEEL. Cast iron weighs on an average 450 lbs. per cubic foot. Wrought iron weighs on an average 480 lbs. per cubic foot. Steel weighs on an average 489.6 lbs. per cubic foot. From above we see that more

Product details

  • Paperback | 56 pages
  • 189 x 246 x 3mm | 118g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236492757
  • 9781236492753