CATALOGUE OF THE MECHANICAL ENGINEERING COLLECTION. 113 



body-lifting link pins. This allows the body-lifting links to travel 

 l^ast dead center without any hard impact when the body touches 

 the frame on the downward motion, and also prevents a jarring pull 

 when the body is about to start on the upward motion. The rear end 

 of the body is hinged to the chassis frame by means of two brackets 

 bolted to the angle sills on the body. The body-hinged bracket shaft 

 is carried in these two brackets. 



The general dimensions of this truck are : length of wheel base, 

 120 inches; length over all from front of bumper to end of frame, 

 223 inches; width over all to outside of hub caps, front wheels, 76-| 



FIG. 55. HANLON TYPE VELOCIPEDEj 1866. 



inches; width over all to outside of hub caps, rear wheels, 81| inches; 

 length of frame, back of cab, 140 inches; turning circle, 42 feet; 

 capacity, 20,000 pounds — chassis, body, and load; tires, 36 inches in 

 diameter; wheel tread, 63 inches on front wheels and 65 inches on 

 rear wheels. Cat. No. 307,256 U.S.N.M. 



CYCLES. 



Velocipede. Made in Dayton, Ohio, 1866. Purchased 1888. 



This machine is of the type developed by the Hanlon Brothers, who 

 were the American contemporaries with Pierre Lallement of France, 

 whose design of velocipede laid the foundation of modern cycling. 

 52103—22 8 



