Higbee, F. G · New York, John Wiley & Sons · leaf 180
WARPED SURFACES 169 the length of the generatrix or the outside diameter of the con-veyor flights. Given these data the drawing is made as follows:Tangent to the directing helix at B draw AB. A is the pointwhere the line, which is a position of the generatrix parallel to … 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…
Geometry, Descriptive
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