Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 36
24 van nostrand's engineering magazine. … of it; thus the pieces of the lower chord the reciprocal figure the lines parallel to are qa, qc, qe, etc.; and those of the its sides must all diverge from the point tipper chord are rb, rd, etc., while ab, be, q: and if the upper chord had been a etc., are pieces of the bracing, and qr is…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
