The American House Carpenters' and Joiners' Assistant: Being a New and Easy System of Lines, Founded on Geometrical Principles, for Cutting Every Description of Joints, and for Framing the Most Difficult Roofs; to which is Added a Complete Treatise on Mathematical Instruments. Also, Mensuration, Tables of the Weights and Cohesive Strength of the Several Materials Used in the Construction of Buildings, &cD. Burgess, 1853 - 136 σελίδες |
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Σελίδα 53
... subdivisions will be tenths . Fig . 18 represents six of the simply divided scales , which are generally placed upon ... subdivision , reckoning backwards , or towards the left hand . To take off any number of feet and inches , 6 feet 7 ...
... subdivisions will be tenths . Fig . 18 represents six of the simply divided scales , which are generally placed upon ... subdivision , reckoning backwards , or towards the left hand . To take off any number of feet and inches , 6 feet 7 ...
Σελίδα 54
... subdivisions be reckoned in the opposite direction to the primary divisions , as in the simply divided scales . Draw the diagonal lines from the tenth subdivision below to the ninth above ; from the ninth below to the eighth above : and ...
... subdivisions be reckoned in the opposite direction to the primary divisions , as in the simply divided scales . Draw the diagonal lines from the tenth subdivision below to the ninth above ; from the ninth below to the eighth above : and ...
Σελίδα 55
... subdivisions 1 , 2 , 3 , & c . , from the left hand towards the right throughout the whole extent of the scale . Take off now , with the compasses , eleven of these subdivisions , set the extent off backwards from the end of the first ...
... subdivisions 1 , 2 , 3 , & c . , from the left hand towards the right throughout the whole extent of the scale . Take off now , with the compasses , eleven of these subdivisions , set the extent off backwards from the end of the first ...
Σελίδα 56
... subdivisions , together with three - tenths of a subdivision . Place , then , one point of the compasses upon the third division of the vernier scale , and extend the other point to the 32d subdivision , or the second division beyond ...
... subdivisions , together with three - tenths of a subdivision . Place , then , one point of the compasses upon the third division of the vernier scale , and extend the other point to the 32d subdivision , or the second division beyond ...
Σελίδα 58
... subdivisions of the quadrant , intersecting the chord or radius placed in the quadrant ; and we shall have a scale of hours . Prolong the touching line TC to L ; set off the scale of sines from c to L ; draw right lines from the center ...
... subdivisions of the quadrant , intersecting the chord or radius placed in the quadrant ; and we shall have a scale of hours . Prolong the touching line TC to L ; set off the scale of sines from c to L ; draw right lines from the center ...
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The American House Carpenters' and Joiners' Assistant Lucius D. Gould Περιορισμένη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
26 Spruce St angle rib beam beam compasses bevel breadth Cast Iron circle circumference colatitude constructed copy cube root cubic feet depth describe the arc diagonal diameter divided draw the lines edge Eighths elevation ellipsis extent will reach Figure floor frame girders given line given number gnomonic projection half hypothenuse inches instrument Invented and Drawn jack-rafters Join joists length in feet limb line of chords line of numbers line of sines Lith 26 Spruce meridian method of finding multiplied nail number of degrees number of equal pencil perpendicular plane Plate polygon primary divisions proportional purlin quadrant quarter girt quotient radius regular polygons represent right angles right line roof rule Rule.-Multiply screw secants sector Shows the method slider sliding soffit square root straight line stroke subdivision tangents thickness transverse distance triangle truss vernier scale weight