“The propelling power is derived from the spring S, which is affixed to a cross-rod in the frame, as indicated at g.
“The other end of the spring is attached to the shaft of the wheel H, in the usual manner.
“By this invention, vehicles may be propelled on common roads, with more or less speed, according to the level or uneven character of the road.
“Its advantage, in dispensing with the use of horses, is obvious.
“I claim as new, and desire to secure by Letters Patent,—
“1. The arrangement, with relation to the revolving shaft L, carrying the wheels A´, of the wheels G, H, J, pinion b, and spring S, as herein described, for the purpose specified.”
This is a fair sample of “deriving power from springs.” The poor horse will now have his long-needed rest.
S. F. Estell, of Richmond, Ind. Velocipede. No. 87,033. Patented February 16, 1869.