Text-book of Modern Carpentry: Comprising a Treatise on Building-timber, with Rules and Tables for Calculating Its Strength, and the Strains to which Each Timber of a Structure is Subjected; Observations on Roofs, Trusses, Bridges, &c. and a Glossary, Explaining at Length the Technical Terms in Use Among Carpenters

Εξώφυλλο
Crosby, Nichols, 1858 - 180 σελίδες
 

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Σελίδα 77 - 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.
Σελίδα 77 - Find the greatest square number in the first or left hand period, place the root of it at the right hand of the given number, (after the manner of a quotient in division) for the first figure of the root, and...
Σελίδα 70 - To find the area of a parallelogram (65), whether it be a square, a rectangle, a rhombus, or a rhomboid. RULE. — Multiply the length by the breadth, or perpendicular height, and the product will be the area.
Σελίδα 73 - Problem 14. — To find the area of a sector of a circle. Rule. — Multiply the arc of the sector by half the radius. Example. — How much tin is required to cover a 60° sector of a 10 foot circular deck?
Σελίδα 71 - Multiply the square of the side of the polygon by the number standing opposite to its name in the following table, and the product will be the area.
Σελίδα 74 - To find the solidity of a sphere or globe.. RULE.* "... Multiply the cube of the diameter by .5236, and the product will be the solidity.
Σελίδα 71 - To find the area of a regular polygon. RULE.* Multiply half the perimeter of the figure by the perpendicular falling from its centre upon one of the sides, and the product will be the area.
Σελίδα 73 - Multiply half the circumference by half the diameter, and the product will be the area.
Σελίδα 27 - ... method of barking the trees standing in the spring, and felling them about the end of October.:): Duhamel, whose extensive knowledge of the nature and qualities of woods is well known, recommends the same method; and Evelyn states, that " to make excellent boards and planks, it is the advice of some, you should bark your trees in a fit season, and so let them stand naked a full year before the felling.
Σελίδα 77 - II. Find the greatest square number in the first or left hand period, and place its root on the right of the number for the first figure in the root.

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