CATALOGUE OF THE MECHANICAL ENGINEERING COLLECTION. 115 



Velocipede, 1870. Gift of the Goodyear Rubber Company, 1897. 



This machine is a further development of the Hanlon design, in- 

 volving a steel spring and a strap seat suspension and an improved 

 l)rake on the rear wheel operated by rotating the handle bar, which 

 transmits pressure through a system of rods and springs. 



The frame of the machine consists of a front-wheel iron fork 

 pitched back slightly from the vertical, and a diagonal fork extend- 

 ing from the front-wheel socket head to the rear-wheel bearings. 

 A strap saddle is suspended between the socket head and two springs 

 midway of each branch of the diagonal fork. The machine is 

 driven bv metal spool pedals fitted to short cranks on the front 



FIG. 57. BICYCLEj 1879. 



v.heel. The wheels are of wood with iron tires, the front wheel 38 

 inches in diameter and the rear 30 inches. 



Cat. No. 181,651 U.S.N.M. 



Bicycle, 1879. Patent Allowed J. Shire, Detroit, Michigan. 

 Howard Buckler, 1907. 



Gift of C 



The frame of this machine is entirely of wood braced with iron. 

 The front fork pitches backward at an angle of 45 degrees and ter- 

 minates in a short handle bar. From a pivot back of the front fork 

 and above the wheel a diagonal fork extends to the rear wheel bear- 

 ings and a wood brace extends from the center of the handle bar 

 downward between the branches of the diagonal fork to a point 

 about three inches above the ground and in front of the rear wheel, 

 which is attached to iron struts from each rear-wheel bearing;. A 



