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The rudiments of practical bricklaying : in six sections : general principles of bricklaying, arch drawing, cutting, and setting, different kinds of pointing, paving, tiling, materials, slating, and plastering, practical geometry, mensuration, etc. (1882)

Hammond, Adam · London : C. Lockwood · leaf 56

An illustration from The rudiments of practical bricklaying : in six sections : general principles of bricklaying, arch drawing, cutting, and setting, different kinds of pointing, paving, tiling, materials, slating, and plastering, practical geometry, mensuration, etc., 1882, leaf 56
the camber and ellipse Gothic ; that is, take the thickness of the brick and set it equally on each side of the centre line at H, as shown ; then draw the lines to g ; this will give the size of the mould very nearly ; then, if they are worked alternately down to the springing-line, it will easily… … Fig. 31. span and also the depth of the arch, and set it off equal on each side of the centre line ; divide this into three equal parts by marking the points 0 and D ; then, with d as centre and d c for radius, describe an arc cutting the upright line in e. From this point draw a straight line…

Bricklaying · Plastering · Masonry

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