Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 86
Fin. 1X9. Join AC and bisect it at O. From O as center,with a radius equal to OC or OA describe a semi-circle, cutting the given circle at D. The requiredtangent is a line passing through A and D. To draw lines tangent to two given circles. Case I.—From O, the center of the larger circle,Fig. 190,… … Fio. Ifll). PI to this circle from the center P of the othercircle. (See the preceding problem.) From O and P draw perpendiculars to these tan-gents and continue them until they cut the givencircles at AB and CD. Join the points. The linesAB and CD are the required tangents. 100 ROGERS DRAWING AND…
Mechanical drawing · Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
