Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ..draughtsmen .. . Project c to c; make angle vcd equal to the predetermined flare of the sides; prolong vc to b and o; jjroject b to b on vc i^rolonged and draw arc a b m with rachus b v, obtaining a m for the width of the plan of the tojj. The plan of one-half the curve o nzais shown at onzm and is thus found:Assume any element v xy; jjrolong it toz; obtain the plan vxy and project s uponit at s. Similarly for n and as many inter-mediate points as it might seem
Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ..draughtsmen .. . Project c to c; make angle vcd equal to the predetermined flare of the sides; prolong vc to b and o; jjroject b to b on vc i^rolonged and draw arc a b m with rachus b v, obtaining a m for the width of the plan of the tojj. The plan of one-half the curve o nzais shown at onzm and is thus found:Assume any element v xy; jjrolong it toz; obtain the plan vxy and project s uponit at s. Similarly for n and as many inter-mediate points as it might seem desirableto obtain. Assuming that the foot of the tub iscomposed of an oblique cone whose section, /(/«, with the bottom is equal to ecd, and whose baseangle is hik\ we project / to /, draw //: at the given angle to the base, jDroject h to Ic, andthrough the latter draw the semicircle r I q with radius b i\ obtaining the plan of the upper base. Joining the tangent points ;• and s, h and q, we have rs and hq as the elements of tangencyof sides with end. Their elevations coincide in hl, which meets ki at v, whose plan is v^ on hq. I^ig-.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjec, booksubjectlettering
