The sheet-metal worker's guide : a practical handbook for tinsmiths, coppersmiths, zincworkers, etc., comprising numerous geometrical diagrams and working patterns, with descriptive text (1888)
Crane, W. J. E. (W. J. Eden) · London : Lockwood and Son · leaf 41
29 GEOMETRYo detail the process to be pursued in " developing one of the simplest of the geometrical solids — namely, the cylinder. When the surface of a cylinder is developed a right-angled parallelogram (all the geometrical … Fig. 22. terms will be explained as we proceed) is obtained, as at F G H 1 (Fig. 23), the height of which, g H, is equal to the length of the cylinder, which we will imagine in this case to be equal to the diameter of the cylinder, and the length, r g or H I, is equal to the length of the…
Sheet-metal work
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