Denis Johnson patented in England in 1818 a similar vehicle which he named the Pedestrian Curricle. 威廉·亨利·杜利特.世纪发明.
And as for bones of St. Denis, I feel certain we have seen enough of them to duplicate him if necessary. 马克·吐温.傻子出国记.
In 1818 Denis Johnson secured an English patent for an improved form of this device, but the principle of propulsion remained the same. Edward W. Byrn.十九世纪发明进展.