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 16
... screw or nail a strip having one straight edge . At right angles screw two other pieces , leaving room for a small pin to pass freely between the pieces . Take any strip , as shown at c , and from the point 3 with 5.5 , Fig . 3 , as a ...
... screw or nail a strip having one straight edge . At right angles screw two other pieces , leaving room for a small pin to pass freely between the pieces . Take any strip , as shown at c , and from the point 3 with 5.5 , Fig . 3 , as a ...
Σελίδα 47
... screw . A groove is formed in the shank , which receives the spring when screwed up tight ; and , by turning the screw backwards , the steel point may be gradually allowed to be pulled backwards by the spring , and may again be ...
... screw . A groove is formed in the shank , which receives the spring when screwed up tight ; and , by turning the screw backwards , the steel point may be gradually allowed to be pulled backwards by the spring , and may again be ...
Σελίδα 48
... screw . COMPASSES WITH MOVABLE POINTS . - If . an arc or circle is to be described faintly , merely as a guide for the terminating points of other lines , the steel points are generally sufficient for the purpose , and are susceptible ...
... screw . COMPASSES WITH MOVABLE POINTS . - If . an arc or circle is to be described faintly , merely as a guide for the terminating points of other lines , the steel points are generally sufficient for the purpose , and are susceptible ...
Σελίδα 49
... screw , and the compasses are set . • To reduce or enlarge the Lines of a Drawing . The line across the slider being set to one of the divisions , 2 , 3 , 4 , & c . , on the scale of lines , the points AB , will open to double , triple ...
... screw , and the compasses are set . • To reduce or enlarge the Lines of a Drawing . The line across the slider being set to one of the divisions , 2 , 3 , 4 , & c . , on the scale of lines , the points AB , will open to double , triple ...
Σελίδα 51
... screw , so as to draw lines of any required fineness or thickness . One of the blades is framed with a joint , so that by taking out the screw the blades may be completely opened , and the points effectively cleaned after use . The ink ...
... screw , so as to draw lines of any required fineness or thickness . One of the blades is framed with a joint , so that by taking out the screw the blades may be completely opened , and the points effectively cleaned after use . The ink ...
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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