Builder's architectural drawing self-taught : containing descriptions of drawing instruments and accessories, with rules for using them, and hints as to their care and management ... (1903)
Hodgson, Fred. T. (Frederick Thomas), 1836-1919 · Chicago : F.J. Drake & Co. · leaf 99
elliptical curves. This moulding can best bedescribed by the use of a trammel, an instrumentI will describe later on; or the curve may beobtained by the use of the ellipsograph, shownin Fig. 18. 76 ARCHlTECttfllAL DRAWING SELF TAtJGHT These examples will fully suffice to give thelearner good… … Fig. 67. burden this work with examples and instructionsthat the ordinary draftsman or workman maynever be called upon to make use of. One of the simplest methods of forming anellipse is by the aid of two pins, a string and alead pencil as shown at Fig. 68. Suppose F Bto be the major or longest…
Architectural drawing
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