Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 108
ng lessons, and is clearly indicated inthe plate. To develop the envelope of the smallcylinder, draw g h and make it equal to the circumfer- ence of small cylinder and subdivide, as in previouslessons. Draw P R (see elevation) at right angles toaxis of small cylinder. Transfer P 5 to ^ and h, e 4to…
Mechanical drawing
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