The millwright & engineer's pocket companion

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Page 74 - ... one of the most important, and at the same time, one of the least expensive and troublesome, which we possess.
Page 55 - The areas of circles are to each other as the squares of their diameters.
Page 22 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 55 - Area of a circle is equal to the area of a triangle whose base equals the circumference and perpendicular equals the radius.
Page 41 - Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles.
Page 52 - Rule. Divide the square of half the chord by the versed sine ; to the quotient add the versed sine, and the sum will be the diameter, &c.
Page 121 - To find the capacity of a pipe or cylinder in gallons, multiply the square of the diameter in inches by the length in inches and by .0034.
Page 88 - These simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
Page 22 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Page 42 - By 3, if the sum of the digits is divisible by 3. By 4, if its tens and units are together divisible by 4. By 5, if the units figure is 5 or 0.

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