Pneumatics not enough; springs necessary for comfort & safety Sylph
spring frame saves muscle & nerves & is perfection. All users delighted.
Investigate. We also make a 30 lb. rigid Sylph. Cata. free.
Rouse-Duryea Cycle Co. _Mfrs._ 16 G st., Peoria, Ill.
FIGURE 5.--ADVERTISEMENT of Duryea bicycle company,
_Scientific American_, September 9, 1893.]
Going to Hartford, Connecticut, possibly on business relating to his
bicycle work, Charles visited the Hartford Machine Screw Company where
the Daimler-type engine was being produced,[6] but after examining it he
felt it was too heavy and clumsy for his purpose. Also in Hartford he
talked over the problem of a satisfactory engine with C. E. Hawley, an
employee of the Pope Manufacturing Company, makers of the Columbia
bicycle. Hawley, searching for a way to construct an engine that would
perform in a manner similar to the Atkinson, yet would have the
lightness and compactness necessary for a carriage engine, suggested an
idea that Charles believed had some merit. This idea, involving the use
of what the Duryeas later called a "free piston," was eventually to be
incorporated in their first engine.[7]
[Illustration: FIGURE 6.--J. FRANK DURYEA, about 1894, as drawn by George
Giguere from a photograph. (Smithsonian photo 48335.)]