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Here is a list of the vehicles that arrived or left from a quarter to nine o'clock till a quarter past nine. Five cabs came in, but we need not trouble ourselves about them. Three went out bearing the numbers 1781, 3025, and 2140. One of these three must have taken your employer's relative." "Then I must question the three drivers." The clerk shrugged his shoulders.
A. Experiments upon the force requisite to twist off cast iron necks show that if the cube of the diameter of neck in inches be multiplied by 880, the product will be the force of torsion which will twist them off when acting at 6 inches radius; on this fact the following rule is founded: To find the diameter of a cast iron fly wheel shaft: multiply the square of the diameter of the cylinder in inches, by the length of the crank in inches, and extract the cube root of the product, which multiply by 0.3025, and the result will be the proper diameter of the shaft in inches at the smallest part, when of cast iron.
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