 | Perry Fairfax Nursey - 1841 - 538 páginas
...Diameter in inches. H 3Ï 4 41 ti 5 M 5.1 sí 6 Threads to the inch. H 3 3 2.4 2Î 23 allai 2S 2.; aj parts. The economy of screwing apparatus was also...oneeighth — of the 4 inch, one-twelfth — of the б inch, one-fifteenth. It is obvious that more power is required as the diameter increases. But this... | |
 | William Newton, Charles Frederick Partington - 1842 - 580 páginas
...Above the diameter of 1 inch, the same pitch is used for two sizes, to avoid small fractional parts. The proportion between the pitch and the diameter...throughout the entire scale. Thus the pitch of the | inch screw is ^th of the diameter ; that Diameter in inches. i A * * i 1 i 1" If ij 1* 11 ii *! If... | |
 | William Newton - 1842 - 546 páginas
...Above the diameter of 1 inch, the same pitch is used for two sizes, to avoid small fractional parts. The proportion between the pitch and the diameter...throughout the entire scale. Thus the pitch of the £ inch screw is yth of the diameter ; that Diameter in inches. 1 A i TV * i * 7 I" 1* I* 1| U 14 l|... | |
 | 1842 - 934 páginas
...pitch is used for two sizes. This could not have been avoided without introducing small fractional parts. The economy of screwing apparatus was also promoted by repetition of the thread. j,on. Mec. Mag. Oct wi. On a Voltaic Process for Etching Daguerreotype Plates. By W. R. GROVE, ESQ.,... | |
 | 1842 - 886 páginas
...pitch is used for two sizes. This could not have been avoided without introducing small fractional parts. The economy of screwing apparatus was also promoted by repetition of the thread. Lon. Mec. Mag. Oct. On a Voltaic Process for Etching Daguerreotype Plates. By W. R. GROVE, Esq., MA,... | |
 | Institution of Civil Engineers (Great Britain) - 1848 - 536 páginas
...Above the diameter of 1 inch the same pitch is used for two sizes, to avoid small fractional parts. The proportion between the pitch and the diameter...throughout the entire scale. Thus the pitch of the J inch screw is ^-'h of the diameter ; that of the J inch |th, of the 1 inch £'", of the 4 inches ^a', and... | |
 | Joseph Whitworth - 1858 - 234 páginas
...pitch is used for two sizes. This could not have been avoided without introducing small fractional parts. The economy of screwing apparatus was also...thread. It is important to remark that the proportion Diameter in Inches i A 1 A t I I J 1 14 11 Threads to the Inch . . 20 If 18 16 11 5 14 12 11 10 9 8... | |
 | Oliver Byrne - 1864 - 682 páginas
...Above the diameter of 1 inch the same pitch is used for two sizes, to avoid small fractional parts. The proportion between the pitch and the diameter...throughout the entire scale. Thus the pitch of the J inch screw is Jth of the diameter ; that of the \ inch Jth, of the 1 inch J-th, of the 4 inches i'2th, and... | |
 | Oliver Byrne - 1874 - 718 páginas
...Above the diameter of 1 inch the same pitch is used for two sizes, to avoid small fractional parts. The proportion between the pitch and the diameter...throughout the entire scale. Thus the pitch of the J inch screw is Jth of the diameter ; that of the J inch |th, of the 1 inch Jth, of the 4 inches j 'jth, and... | |
 | Thomas Minchin Goodeve, Charles Percy Bysshe Shelley - 1877 - 116 páginas
...: — 78 THE WHITWORTH MEASURING MACHINE. [CHAP. Table of Pitches for Screws with Angular Threads. It is important to remark that the proportion between...varies throughout the entire scale. Thus, the pitch of ^ inch is one-fifth of the diameter, that of | inch one-sixth, of 1 inch one-eighth, of the 4 inch... | |
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It will be observed that above one inch diameter the same pitch is used for two sizes. This could not have been avoided without introducing small fractional parts. The economy of screwing apparatus was also promoted by repetition of the thread. It is... 
