72 BULLETIN 119, U. S. NATIONAL MUSEUM. 



Parts of the Locomotive " Stourbridge Lion " Consisting of boiler, wheels, 

 walking beams, and one cylinder. The first locomotive on the Western 

 Hemisphere to run on a railroad built for traffic. Gift of the Delaware 

 and Hudson Canal Co, 



The locomotive, " Stourbridge Lion," is a four-wheeled engine, all 

 of whose wheels are " driving wheels " and 4 feet in diameter. The 

 boiler is cylindrical and horizontal, 10^ feet long including the swell 

 of the end plates, and 4 feet 2 inches in diameter. It is constructed 

 of iron plates, one-half inch thick, and originally a chimney 18 

 inches in diameter rose from the top of the boiler near its forward 

 end to a height of about 15 feet from the top of the rails. The fire 

 box was cylindrical, 28 inches in diameter and extending into the 

 boiler 4 feet, from which two flues 18 inches in diameter extended 

 to the bottom of the smokestack. Besides the necessary openings 

 for the passage of steam from the boiler, there was near the center 

 of its top an oval opening 12 inches wide and 16 inches long, called 

 a " manhole," for the convenience of cleaning or repairs. The front 

 end of the boiler was ornamented with a representation of the face 

 of a lion and the name " Stourbridge " was distinctly lettered on a 

 plate attached to its side. 



The boiler was originally supported on a strong, wrought-iron 

 frame, the front two-thirds part of which rested on two, many 

 plated heavy steel springs which rested on the axle of the forward 

 wheels, and the rear one-third part rested on supports on the axle 

 of the rear wheels. 



Under the center of the boiler and supported by this iron frame 

 was a small water tank from which water to supply the boiler was 

 pumped. 



The hubs of the wheels were of iron and were " made fast " to the 

 axles so as only to turn with the axles. The spokes and fellies were 

 of wood and painted bright red. The tires were of wrought iron 4 

 inches wide and | inch thick, formed of two plates each three-fourths 

 of an inch thick and fitted one around the other. They were 4 feet 

 in diameter, exclusive of the flanges, which projected three-fourths 

 of an inch beyond the face of the tires. 



A cylinder was placed upright on each side of the rear end of the 

 boiler arranged for a stroke of 36 inches. The upper end of each 

 piston rod was connected to one end of a lever 6 feet in length called 

 a " walking beam," in form resembling the walking beam of a steam- 

 boat, the other end of which rested on fulcrums on the top of two 

 movable or vibrative upright iron rods, connected together by cross 

 braces, the bottom of the fulcrum rods working on hinge joints and 

 the top being of such height that when the piston was at half stroke 

 the beam would be level. 



