Carpentry made easy, or, The science and art of framing, on a new and improved system : with specific instructions for building balloon frames, barn frames, mill frames, warehouses, church spires, etc., comprising also a system of bridge building, with bills, estimates of cost, and valuable tables ... (1857)
Bell, William E · Philadelphia : Howard Challen · leaf 53
d AB, applied six times tothje circumference, will exactly reach around it, and form a regular hexagon;for the angles of this hexagon will also be equal, since each one is made upof two equal angles, namely, BAO+OAF and ABO-1-OBC, &c. After having inscribed the regular hexagon, join the… … 1 ^ Q 5) - ^ -: ^ ^ o -I ■*= l?^ Z 5 t> *55> ;- 1 9 ^ K <9i -: ? =6 ^ r Is _ « ■^ »J > 1 s ^ ^J >« C AE P EN T RY. PLATE 3. THE USE OE THE SQUARE IN OBTAINING BEVELS. Although the square is one of the first instruments placed in thehands of the practical carpenter, yet there are many…
Carpentry · Bridges
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