Higbee, F. G · New York, John Wiley & Sons · leaf 181
Fig. 136. V, pierces the limiting outside cylinder; A, then, is a point onthe limiting outside helix. With A as one point construct a helixwith a pitch equal to the directing helix on the limiting outsidecylinder. If lines be drawn by connecting the points in order,as A and B, etc., they will be… … (i7o) Fig. 137. WARPED SURFACES 171 volute may be constructed with AC as the generating Hne, inwhich case the surface will slope in the opposite way to the sur-face shown. 137. When such a convolute, or developable heUcoid, isdeveloped one flight, or turn, will develop into a flat ring. Thediameter…
Geometry, Descriptive
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
