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, &c |
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Page 5
... circle is tangential , Fig . 10 , or a tangent to a circle or other curve , when it touches it without cutting , if both are produced . 13. An angle is the opening between two lines having different directions and meeting at the same ...
... circle is tangential , Fig . 10 , or a tangent to a circle or other curve , when it touches it without cutting , if both are produced . 13. An angle is the opening between two lines having different directions and meeting at the same ...
Page 7
... circle is a plain figure bounded by a curved line , called the circumference , which is everywhere equidistant from the centre , Fig . 3 . The radius of a circle , Fig . 4 , is a line drawn from the centre to the circumference . The ...
... circle is a plain figure bounded by a curved line , called the circumference , which is everywhere equidistant from the centre , Fig . 3 . The radius of a circle , Fig . 4 , is a line drawn from the centre to the circumference . The ...
Page 8
... circle contained between the two lines orm that angle , the angular point being the centre , Fig . 12 , and is estimated number of degrees contained in that arc . Ce W W E th ci BO arc H Aa G , PROBLEMS . PLATE III . Figure 1 . Through ...
... circle contained between the two lines orm that angle , the angular point being the centre , Fig . 12 , and is estimated number of degrees contained in that arc . Ce W W E th ci BO arc H Aa G , PROBLEMS . PLATE III . Figure 1 . Through ...
Page 9
... circle which shall touch the points ABC . Figure 2 . A tangent to a circle being given , to find the point of contact with the circle . Let c be the centre on which to describe the circle , and A B the tangent . Bisect B вс , and , from ...
... circle which shall touch the points ABC . Figure 2 . A tangent to a circle being given , to find the point of contact with the circle . Let c be the centre on which to describe the circle , and A B the tangent . Bisect B вс , and , from ...
Page 10
... circle . Join ca and CB , and et AB , be the given diameter . Take the distance , A B as a radius , and with and B as centres , describe the arcs intersecting at c . w the tangent DE , parallel to AB ; produce CA and CB to intersect the ...
... circle . Join ca and CB , and et AB , be the given diameter . Take the distance , A B as a radius , and with and B as centres , describe the arcs intersecting at c . w the tangent DE , parallel to AB ; produce CA and CB to intersect the ...
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Common terms and phrases
26 Spruce St ABCD angle rib beam beam compasses bevel breadth Cast Iron circle circumference colatitude compasses copy cube root cubic feet depth describe the arc diagonal diameter divided draw the lines Drawn by L.D. edge Eighths elevation ellipsis extent will reach Figure floor frame Frustum girders given number gnomonic projection half hypothenuse inches Invented and Drawn jack-rafters joists L.D. Gould length in feet limb line of chords line of numbers line of sines Lith 26 Spruce MATHEMATICAL INSTRUMENTS meridian method of finding Multiply nail number of degrees number of equal paper perpendicular plane Plate polygon primary divisions proportional purlin quarter girt radius rafter represent right angles right line roof Rule screw secants Shows the method slider sliding soffit straight line STRENGTH OF MATERIALS stroke subdivision tangents thickness transverse distance triangle truss vernier scale weight