| James Ferguson - Astronomy - 1823 - 444 pages
...of the teeth in each of the lines is varied one tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...found by multiplying the thickness of the teeth by 2. 1. The number that represents the strength of the teeth, will also represent the number of horses'... | |
| James Ferguson - Astronomy - 1823 - 418 pages
...of the teeth in each of the lines is varied one tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...and tenths, &c. The pitch is found by multiplying 1 the thickness of the teeth by 2. 1. The number that represents the strength of the teeth, will also... | |
| William Grier - Mechanical engineering - 1832 - 366 pages
...of the teeth in each of the lines is vnried one-tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...found by multiplying the thickness of the teeth by 2. 1. The number that represents the strength of the teeth, will also represent the number of horses•... | |
| William Grier - Mechanical engineering - 1836 - 384 pages
...of the teeth in each of the lines is varied one-tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...found by multiplying the thickness of the teeth by 2-1. The number that represents the strength of the teeth, will also represent the number of horses-... | |
| William Grier - Mechanical engineering - 1842 - 320 pages
...of the teeth in each of the lines is varied one-tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...found by multiplying the thickness of the teeth by 2-1. The number that represents the strength of the teeth, will also represent the number of horses-... | |
| William Grier - Mechanical engineering - 1861 - 316 pages
...of the teeth in each of the lines is varied one-tenth of an inch. The breadth of the teeth is always four times as much as their thickness. The strength...found by multiplying the thickness of the teeth by 2'1. The number that represents the strength of the teeth, will also represent the number of horses'... | |
| William S. Binns - Mechanical drawing - 1869 - 248 pages
...case in practice to which all rules that deserve that name ought to apply. Mr. Roberton-s rule is this :—The strength of the teeth is ascertained by multiplying the square of their thickness by their breadth, taken in inches and parts of an inch; and the number that represents the strength... | |
| William S. Binns - Mechanical drawing - 1886 - 272 pages
...practice to which all rules that deserve that name ought to apply. Mr. Eoberton-s rule is this : — The strength of the teeth is ascertained by multiplying the square of their thickness by their breadth, taken in inches and parts of an inch ; and the number that represents the strength... | |
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