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 72
60 THE SHEET-METAL WORKER's GUIDE. A B c D, part of the cone. This covering may be supposed to be made up of a number of boards, as shown by the crossed lined Darts at 12, or a sheet of metal. 6 … Fig. 54. To develope the surface or find the " stretch- out for part of a cone's surface as in Fig. 55 : — Let a be d he the parts of the cone to be covered, and the sides, a 5, d c, produced to e to complete
Sheet-metal work
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
