The Practice and Science of Mining Engineering, a Manual Adapted for the Use of Mine Owners, Mining Engineers

The Practice and Science of Mining Engineering, a Manual Adapted for the Use of Mine Owners, Mining Engineers

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ...f0ot-ounds, (b) 500 gallons are contained in a cylinder 20 feet higgiz 500 277274 = 138637 cubic inches. 20 feet = 240 inches? = 578 square inches, the area of the well: J = 27'13 inches, the diameter of the well. 7854534.--A traction engine draws a load of 25 tons along a level road, the tractive force on the load is 140 lb. per ton, what work is done in drawing the load 600 yards? 535.--A water wheel with a modulus of '66 is worked by a waterfall having a height of 24 feet, and a volume of 200 cubic feet of water per minute, What is the horse power of the wheel? 24 200 62'5 Ans.: L33, (T;'__ X 'so = 6 h.p. 536.--If the area of the plun er or piston of a forcing pump is 120 square inches, and the length of the stroke is 5% feet, how many cubic feet of water will be raised by 8 downward strokes of the piston? 120 5% 12 8 537.--The height of a waterfall is 30 feet, and the quantity of water running over it is 500 cubic feet per minute, to what total horse power is the force of the water e ual? Ans.: A cubic foot of water weiglis 62'5 lbs., then 538.--What is meant by the term inclined plane? Ans.: A plane which forms an angle with a level or Fig, 84, horizontalline, thus M the plane_ in the Incline Fla; NT' figure 84 IS at an angle of 1 in 5, _ I 1 which is equal to Horizontal Plane. 20 in 100, OI' 20 per 539.--The length of an incline plane is 80 yards and height 6 feet, What pressure will be required to sustain a weight of 2 tons on the plane? cent. grade, or an angle whose cotangent is 5. Ans.: 80 yards = 240 feet, rise 6 feet = 1 in 40, therefore gqth of the weight will sustain the load, and Ilvth of 540.--If a train moves up an incline having a grade of 20 per cent. 150 yards, what vertical height is it moved, more

Product details

  • Paperback | 80 pages
  • 189 x 246 x 4mm | 159g
  • United States
  • English
  • black & white illustrations
  • 1236990188
  • 9781236990181