P E N N S Y L V A N I A   R A I L R O A D   S Y S T E M  17

Cylinders 17" x 22"
Drivers. diam. 56" 
Weight on drivers  40,850 lb.
Weight, total engine  64,550 lb. 

Equipped with hook motion valve gear and independent variable cut-off. Used in smoke burning tests of 1859, and worn out in 1876.

American type freight locomotive, Baldwin, 1857
American Type Freight Locomotive, built by The Baldwin Locomotive Works, 1857
 
freight locomotives of the 0-8-0 and 4-6-0 types, built during the years 1854-1856. The general designs of these locomotives are shown on pages 15 and 16. 
     The link motion, in the meantime, had been steadily finding increasing favor among American railway managers, and had occasionally been used by Mr. Baldwin at the 
which was frequently used by The Baldwin Locomotive Works until 1880. The "Tiger," shown in the frontispiece, was elaborately painted and decorated in accordance with the practice of the day, and represented, at that time, the highest development of the American passenger locomotive. 
     The introduction of the link motion 
 
Ten wheeled freight locomotive
Ten-wheeled Freight Locomotive, built by The Baldwin Locomotive Works for the Allegheny Portage R. R. in 1854, and purchased by the Pennsylvania in 1857
Cylinders 19" x 22"
Drivers. diam. 48" 
Weight on drivers  48,000 lb.
Weight, total engine  64,000 lb. 

     Originally named "Thos. H. Forsythe," and equipped with hook motion and Baldwin variable cut-off. Rebuilt as shown, with link motion and Gill & Co.'s smoke consuming firebox. A similar engine, No. 206, originally the "Wm. Hopkins," of the Allegheny Portage R. R., was used in the smoke consuming tests of 1859.

 
urgent request of his customers. The first Baldwin locomotive for the Pennsylvania to be so equipped was the "Tiger," of the 4-4-0 type, built for fast passenger service in December, 1856. It was shortly followed by three others of similar design, the "Leopard," "Hornet" and "Wasp." These locomotives had straight boilers with two domes, and in this respect established a form of construction  marked an important step in locomotive development, and the most advanced types of the late fifties and early sixties embodied the principal characteristic features of the locomotive as built to-day. During the succeeding ten or twelve years the locomotives built for road service on the Pennsylvania were of two principal types--the American (4-4-0) for passenger service and fast freight, 
 
Cylinders 16" X 24"
Drivers. diam. 66" 
Weight on drivers  40,675 lb.
Weight, total engine  63,800 lb.

     Smith's patent boiler with short tubes and 54" combustion chamber. Used in smoke burning tests, 1859. 

american type passenger locomotive, Baldwin, 1859
American Type Passenger Locomotive, built by The Baldwin Locomotive Works, 1859


 
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