Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 461
ken equal to one foot and then through a right angle as the simplest, the cell be moved again, when AD takes we have the figure here given. The four respectively the lengths 1, -§-, J, J, &c, holes now lie at the four corners of a then AE will be found to assume the right-angled parallelogram, and… … Now Mr. Hart found that if he took four bars and made a linkage in which the adjacent sides are unequal and two cross as in the figure, and then took four points on the four links dividing the
Engineering
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