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 92
... bearing all the proportions in itself exactly as the original . It may appear almost superfluous to remark , that the process of enlarging drawings by means of squares is a similar operation to the above , except that the points are to ...
... bearing all the proportions in itself exactly as the original . It may appear almost superfluous to remark , that the process of enlarging drawings by means of squares is a similar operation to the above , except that the points are to ...
Σελίδα 112
... bearing ; but the ceilings are more subject to cracks and irregu larities ; consequently , single joisted floors of long bearing.
... bearing ; but the ceilings are more subject to cracks and irregu larities ; consequently , single joisted floors of long bearing.
Σελίδα 113
... bearing can be used only in inferior buildings . When it is desirable to have a perfect ceiling , a double floor is used ; and when the bearing is long , a framed floor becomes the most convenient . The following experiment was made on ...
... bearing can be used only in inferior buildings . When it is desirable to have a perfect ceiling , a double floor is used ; and when the bearing is long , a framed floor becomes the most convenient . The following experiment was made on ...
Σελίδα 114
... bearing exceeds 10 feet , single joisting should be strutted between the joists to prevent them from turning or twisting sideways , and also to stiffen the floor ; when the bearing exceeds 15 feet , two rows of struts will be necessary ...
... bearing exceeds 10 feet , single joisting should be strutted between the joists to prevent them from turning or twisting sideways , and also to stiffen the floor ; when the bearing exceeds 15 feet , two rows of struts will be necessary ...
Σελίδα 115
... bearing exceeds 25 feet , it is difficult to obtain timber large enough for girders , and it is usual , in such cases , to truss them . The methods adopted for that purpose have generally the appearance of much ingenuity ; but , in ...
... bearing exceeds 25 feet , it is difficult to obtain timber large enough for girders , and it is usual , in such cases , to truss them . The methods adopted for that purpose have generally the appearance of much ingenuity ; but , in ...
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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