. A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., tern for a Tapering Oval artu h,to he in four Sections. Describe the bottom, the length and breadth required as in , describe the sides as in fig. 6 and 7. Describe the right angle AB
. A practical workshop companion for tin, sheet iron and copper plate workers : containing rules for describing various kinds of patterns used by tin, sheet iron and copper plate workers : practical geometry, mensuration of surfaces and solids, tables of the weights of metals, lead pipe, etc., tables of areas and circumferences of circles : japans, varnishes, lackers, cements, compositions, etc., etc., tern for a Tapering Oval artu h,to he in four Sections. Describe the bottom, the length and breadth required as in , describe the sides as in fig. 6 and 7. Describe the right angle ABC, fig. 6; make BF the altitude,draw the line DF at right angle to BC ; make DF equal to AB infig. 5 ; make AB equal to DF and the taper required on a side,draw a line cutting the points A and D, and the line BC. On any right line, as AB in fig. 7, with the radii CD and CA,describe the arcs EF and CD, set off EF equal to EBF in fig. 5 ;draw the lines CE and DF, cutting the centre at B. Edges to be allowed. Fig. 6, make EF equal to CD in fig. 5 ; make GB equal to EF,and the taper required on a side, draw a line cutting the points 0and E, and the line BC. On any right line, as AB in fig. 7, with the radii HE and IIG,describe the arcs IK and GH; set off IK equal to FDG in fig. 5,draw the lines GI and HK, cutting the centre at L Edges to be allowed. The taper must be Cfjual on aU sidei. rPwVf:TICAL UULCS. Fig. 6.
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Keywords: ., bookcentury18, bookdecade1870, booksubjectmetalwork, bookyear1876
