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 7
... half the circle , or a segment cut off by a diameter , Fig . 5 ; the half circumference is sometimes called the semicircle . A sector is any part of a circle which is bounded by an arc and two radii drawn to its extremities , Fig . 7 ...
... half the circle , or a segment cut off by a diameter , Fig . 5 ; the half circumference is sometimes called the semicircle . A sector is any part of a circle which is bounded by an arc and two radii drawn to its extremities , Fig . 7 ...
Σελίδα 10
... half the circumference . PLATE IV . Figure 1 . To describe a portion of a circle when the chord line , AB , and the height , CD , are given . Draw the chord line , AB , and through the centre , D , draw co , perpendicular to A B. Let DC ...
... half the circumference . PLATE IV . Figure 1 . To describe a portion of a circle when the chord line , AB , and the height , CD , are given . Draw the chord line , AB , and through the centre , D , draw co , perpendicular to A B. Let DC ...
Σελίδα 11
... half the shortest diameter , and FH equal to half the longest diameter . Provide grooves , into which the pins , GH , may slide , then move the trammel round , and an ellipsis will be described . Figure 5 . To describe the false ...
... half the shortest diameter , and FH equal to half the longest diameter . Provide grooves , into which the pins , GH , may slide , then move the trammel round , and an ellipsis will be described . Figure 5 . To describe the false ...
Σελίδα 12
... half the diagonals as a radius , describe from each of the four angular points of the square , the arcs cutting the sides . Join the opposite points of intersection , and the required octagon is obtained . Figure 3 . A side of a polygon ...
... half the diagonals as a radius , describe from each of the four angular points of the square , the arcs cutting the sides . Join the opposite points of intersection , and the required octagon is obtained . Figure 3 . A side of a polygon ...
Σελίδα 14
... half , or one third , as in this case the heights over a and b are one half of the respective heights over each point . The section , A , is found by making the perpendiculars on gi equal to the corresponding ones , gh , and through the ...
... half , or one third , as in this case the heights over a and b are one half of the respective heights over each point . The section , A , is found by making the perpendiculars on gi equal to the corresponding ones , gh , and through the ...
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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