LOCOMOTITE ENGINE AND EAILWAT GEADIENTS, 157 



of retardation in all the elements of gradients varying from 

 X in 40 to 1 in 400. As a proof of what can be accom- 

 plished in this way, I have to refer to a series of well- 

 conducted experiments, made a few years since on the 

 Hunt's Bank and Halifax inclines, with engines inferior in 

 power, and also of construction, to those now in use. They 

 were probably the best of their kind at that period, but con- 

 siderably inferior as to weight and power to those which 

 have since been constructed. 



The following experiments were undertaken at the request 

 of Mr. Hawkshaw, C.E., and the Directors of the Lancashire 

 and Yorkshire Railway Company, for the purpose of ascer- 

 taining whether or not gradienti, not exceeding those on the 

 Hunt's Bank incline, could be efficiently worked by the 

 locomotive engine, and whether, and to what extent, im- 

 provements could be eflfected for that purpose. The results 

 are as follows : — 



ExPERiafENTS MADE ON THE LANCASHIRE AND YORK- 

 SHIRE Railway, to determine the PRACTiOABiLiTr 



OF WORKING THE HdNT's BaNK INCLINE BY LOCOMO- 

 TIVE POWER, INSTEAD OF THE FIXED ENGINES PREVI- 

 OUSLY ERECTED FOR THAT PURPOSE. 



^xp. 1. — With the locomotive engine, "London," 14 

 inch cylinders, 20 inches stroke, and 6 wheels, each 4 feet 

 6 inches diameter, coupled. The load, exclusive of the 

 engine and tender, was composed of 10 waggons, 1 carriage, 

 and 15 passengers. 



Weights. 



Wogooi. Load Oraai. 



Tons. Cwts. Tona. Cwts. Tons. Cwts. 



31 12 50 10 82 2 



Of engine and tender 25 13 



Total weight 107 16 



