 | 1837 - 868 páginas
...longitudinally and condensed upon themselves, are, by driving a thick, and especially a rather obtusely pointed spike, folded in masses backward and downward so as to leave in certain parts the faces of the grains of the timber in contact with the surface of the metal. That the view just presented is correct,... | |
 | 1837 - 494 páginas
...longitudinally and condensed upon themselves, are, by driving a thick, and especially a rather obtusely pointed spike, folded in masses backward and downward so as to leave in certain parts the faces of the grains of the timber in contact with the surface of the metal. That the view just presented is correct,... | |
 | Perry Fairfax Nursey - 1837 - 504 páginas
...and condensed upon themselves, are, by 'driving a thick, and especially л rather obtusely pointed spike, folded in masses backward and downward so as to leave in certain parts the faces of t lie grains of the timber in contact with the Surface of the metal. That the view just presented is... | |
 | 1837 - 970 páginas
...longitudinally and condensed upon themselves, are by driving a thick, and especially a rather obtusely pointed, spike, folded in masses backward and downward so as to leave, in certain parts only, the faces of the grain of the timber, in contact with the surface of the mecal. That the view... | |
 | 1837 - 516 páginas
...longitudinally and condensed upon themselves, are, by driving a thick, and especially a rather ohtusely pointed, spike, folded in masses backward and downward, so as to leave, in certain parts only, the faces of the grain of the timber in contact with the surface of the metal. That the view... | |
 | Dennis Hart Mahan - 1852 - 418 páginas
...experiments gave the following results. Thoroughly seasoned oak is twice, and thoroughly seasoned " In the softer and more spongy kinds of wood the fibres,...timber in contact with the surface of the metal." The forces required to extract spikes are more nearly proportional to the breadths than to either ihe... | |
 | Sir Rowland Macdonald Stephenson - 1866 - 270 páginas
...longitudinally and condensed upon themselves are, by driving a thick and especially a rather obtusely pointed spike, folded in masses backward and downward so as...the timber in contact with the surface of the metal. Also, " that the absolute retaining power of unseasoned chestnut on square or flat spikes of from two... | |
 | Sir Rowland Macdonald Stephenson - 1869 - 446 páginas
...longitudinally and condensed upon themselves are, by driving a thick and especially a rather obtusely pointed spike, folded in masses backward and downward so as...the timber in contact with the surface of the metal. Also, " that the absolute retaining power of unseasoned chestnut on square or flat spikes of from two... | |
 | Dennis Hart Mahan - 1873 - 560 páginas
...longitudinally and condensed upon themselves, are, by driving a thick, and especially a rather obtusely -pointed spike, folded in masses backward and downward so as...necessary, in order to obtain the greatest effect, that the iibres of the wood should press the faces as nearly as possible in their longitudinal direction, and... | |
 | 1878 - 232 páginas
...obtuselypointed spike in soft and spongy wood drives the masses of fibres downwards and backwards so as to place the -faces of the grain of the timber in contact with the surface of the metal, greatly impairing its retaining power. The experiments by which the hardness, gravity, stiffness, elasticity,... | |
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In the softer and more spongy kinds of wood the fibres, instead of being forced back longitudinally and condensed upon themselves, are, by driving a thick, and especially a rather... 
