Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 42
t 4^, which is a point on th§ line 39 of intersection of the cylindrical surface (C) and plane surface (S);3^, 5^ and 3^ are the limit points of this line. The element 6^4and arc of radius ore^ lie in the same plane and intersect at 6^,which is a point on the line of intersection of the bell… … J\ O/oe.^Jnc} ft 6HJ K L \i / De\/e/op/?7e/7t ofthe upper ha^/f ofthe 3(^uc?re por//or?. Deve/op/T^e/^rofthe e///)o//ca/por//i^^. YiQ. 29. DEVELOPMENTS. 1. The development of surfaces isnecessary when sheet material is required to be cut to fit together. The line of intersection of the surfaces…
Mechanical drawing
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