Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 341
of We might add a method of setting the i flank curve " for the other wheel, men- odontograph which was pointed out by j tioned in the tables and rules. Professor Reuleaux, Director of the In the German publication above men- Royal Polytechnic Academy at Berlin; tioned, one point appears to have…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.