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 |
From inside the book
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Page 8
... degrees . measure of an angle is an arc of any 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 ...
... degrees . measure of an angle is an arc of any 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 ...
Page 56
... number to three places of figures upon this nier scale . Increase the first figure by one ; subtract the third ... degrees , sufficient Set o CD , to t From radius o sines . If th scale of From meet th shall ha * In Mr. circles of ...
... number to three places of figures upon this nier scale . Increase the first figure by one ; subtract the third ... degrees , sufficient Set o CD , to t From radius o sines . If th scale of From meet th shall ha * In Mr. circles of ...
Page 59
... number upon this line , indicating the degrees in the ! 1 60 MATHEMATICAL INSTRUMENTS . angle BAC . If , MATHEMATICAL INSTRUMENTS . 59.
... number upon this line , indicating the degrees in the ! 1 60 MATHEMATICAL INSTRUMENTS . angle BAC . If , MATHEMATICAL INSTRUMENTS . 59.
Page 60
... number of equatorial miles in a degree of longitude on the parallels of latitude indicated by the degrees on the corresponding points of the line of chords . Example . - A ship in latitude 60 ° N. sailing E. 79 miles , required the ...
... number of equatorial miles in a degree of longitude on the parallels of latitude indicated by the degrees on the corresponding points of the line of chords . Example . - A ship in latitude 60 ° N. sailing E. 79 miles , required the ...
Page 73
... numbers . • • .. в с = 145 Case 4. The two sides being given , to find the angles and the hypothenuse ... number of degrees in the angle required to be drawn ; and , i MATHEMATICAL INSTRUMENTS . actor being now removed , a ...
... numbers . • • .. в с = 145 Case 4. The two sides being given , to find the angles and the hypothenuse ... number of degrees in the angle required to be drawn ; and , i MATHEMATICAL INSTRUMENTS . actor being now removed , a ...
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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