 From the diameter of the log, in inches, subtract 4 for the slabs. Then multiply the remainder by half itself and the product by the length of the log, in feet, and divide the result by 8 : the quotient will be the number of square feet.  Queensland Agricultural Journal - Стр. 3171899Полный просмотр - Подробнее о книге
 | Dudley Leavitt - 1830 - Страниц: 154
...will make. Then multiply the mean diameter of the log in inches, by the number of boards it will make, and the product by the length of the log in feet, and the last product divided by 12, will give the number of feet nearly. Exatn. How many feet of boards... | |
 | Charles Davies - 1846 - Страниц: 254
...boards which can be cut from any log whatever ? From the diameter of the log, in inches, subtract 4 for the slabs. Then multiply the remainder by half...the result by 8 : the quotient will be the number of square feet. EXAMPLES. 1 . What is the number of feet of boards which can be cut from a standard log?... | |
 | 1847 - Страниц: 392
...allowance for the thickness of the bark ; then one-fourth of the girth in inches, is multiplied by itself, and the product by the length of the log in feet, and the last product is then divided by 144, the result of which, is presumed to be the cubic contents... | |
 | Almon Ticknor - 1849 - Страниц: 156
...divided by 12, will give the number of feet. Or, from the diameter of the log in inches, subtract 4 for the slabs. Then multiply the remainder by half...the result by 8 ; the quotient will be the number of square feet. 1. What is the number of feet of boards which can be cut from a log 12 feet in length,... | |
 | Isaac Ridler Butts - 1852 - Страниц: 596
...number of Square Feet is obtained by the following Rule:— Subtract 4 from the Diameter of the Log, and multiply the remainder by half itself, and the product by the length of the Log, then divide the result by 8. bi_D. D. D. D. D. D. DD D. D. D. D. | D. •5^ 12 13 14 15 16 17 19 19... | |
 | John Alexander Henderson - 1872 - Страниц: 64
...boards which can be cut from any log whatever? From the diameter of the log in inches 1 subtract four for the slabs; then multiply the remainder by half...length of the log in feet, and divide the result by eight; the quotient will be the number of square feet. EXAMPLE 1.—What is the number of feet of boards... | |
 | Pleasant W. Johnson - 1892 - Страниц: 726
...for the side of the square the log will make when hewn. Square the side thus obtained and multiply the product by the length of the log in feet, and divide the last product by 144, and the quotient will be the cubical contents in feet and twelfths of a foot.... | |
 | J. M. Scribner - 1895 - Страниц: 200
...for the side of the square the log will make when hewn. Square the aide thus obtained, and multiply the product by the length Of the log in feet, and divide the last product by 144 (or by twelve twice), the quotient will be the cubical contents in feet, and twelfths... | |
 | Henry Solon Graves - 1906 - Страниц: 512
...as the present Doyle rule, reading as follows: "From the diameter of the log, in inches, subtract 4 for the slabs. Then multiply the remainder by half...the result by 8: the quotient will be the number of square feet." This rule was published for the first time, as far as the author is informed, in Elements... | |
 | James Lawrence Nichols - 1907 - Страниц: 456
...hand figure. How to Reduce Logs to Square Timber. Rule: Multiply the square of the diameter in inches by the length of the log in feet and divide the result by 300, and the result will equal the number of cubic feet. Example : How many cable feet in a log S0... | |
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