The millwright & engineer's pocket companion

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Página 66 - ... one of the most important, and at the same time, one of the least expensive and troublesome, which we possess.
Página 47 - The areas of circles are to each other as the squares of their diameters.
Página 55 - RULE. To the sum of the areas of the two ends add the square root of their product ; multiply this sum by the perpendicular height, and \ of the product is the solid content.
Página 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.
Página 47 - Area of a circle is equal to the area of a triangle whose base equals the circumference and perpendicular equals the radius.
Página 41 - Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles.
Página 58 - To find the solidity of a spheroid. Rule. — Multiply the square of the revolving axis by the fixed axis: and the product, multiplied by .5236, will give the solidity.
Página 113 - 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.
Página 80 - These simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
Página 13 - Rule. Multiply the decimal given by the number of parts of the next inferior denomination, cutting off the decimals from the product ; then multiply the remainder by the next inferior denomination ; thus proceeding till you have brought the least known parts of the integer.

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