A DRAFTING MACHINE FOR CIRCULAR ARCS OF ANY RADIUS

Author: Jolly H. L. P.  

Publisher: Maney Publishing

ISSN: 1752-2706

Source: Survey Review, Vol.7, Iss.47, 1943-01, pp. : 24-29

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Abstract

1. Theory.—In Figs. 1. a and 1. b the letters R represent in each case four equal links of any length forming a freely jointed rhombus. L, L are two equal links of any length. (n ± 1), n are respectively a fixed and a rotating link whose lengths are in the ratio (n ± 1)/n.