A practical work-shop companion for tin, sheet-iron, and copper-plate workers ... with numerous valuable receipts and manipulations for every-day use in the work-shop (1904)
Blinn, Leroy J. [from old catalog] · Philadelphia, H. C. Baird & co. · leaf 46
f the side elevation of the bath. It will be useful to dothis. Produce AX and make AE equal to the slant atback, which must, of course, be given. Then on theplan (Fig. 31), E being the meeting point of the end andside curves of the oval ADBC, draw EF perpendicular toAB. Make XF (Fig. 32) equal to… … G^^zz:,^^ Fig:- 34- turn (here of a square pyramid). Produce AA, BB, etc.,the plans of the edges to meet in a point V; this point isthe plan of the apex of the pyramid of which the frustumis a part. Join O, the centre of the square which is theplan of the large end of the frustum, to V. The line…
Metal-work
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