Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 91
ves, b moves in an arc which, in the top view, is repre-sented by the arc b^b\ and in the front view by the horizontal lineb^b\ Line a^b is the real length of ab, and gives the real angleof a b with the top plane. If the angle oi ab with the front plane is desired, ab must berevolved until it is… … A B C line b^W, Line a^b^^ is the real length of ab^ and gives its realangle with the front plane. In drawing A, the real length of 2.h is equal to the hypotenuse of aright-angled triangle, of which the base is equal to the length of the topview of 2ihy and the altitude is equal to the difference…
Mechanical drawing
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