Triangulation applied to sheet metal pattern cutting : a comprehensive treatise for cutters, draftsmen, foremen and students ... (1920)
Kidder, F. S. (Fred SMith), b. 1863 · New York : The Sheet Metal Publication Company · leaf 76
er knowledge of ortho- graphic projection. The reader will note that in fore- going examples a plan of the object, together with a knowledge of its vertical hight was sufficient to enable us to determine the true lengths of all lines presumed to be upon its surface and shown in plan. The reason for… … Fig. 45. A Pictorial View of Transition Pieces and the Planes Within which their Ends are Situated. When the ends of the object are not parallel a more complicated problem is encountered, since there is varia- tion in the distances between the planes of its ends. Therefore some method must be…
Sheet-metal work
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