HYDRAULIC MACHINERY, FOR MINES 



863 



The rams are each 2 inches diameter; length of stroke, 10 inches; speed, 60 

 strokes per minute. Each valve is worked direct from the rams by means of a rod 

 3 inch diameter, fitted with adjustable stops. This rod passes through a tubular 



1196 



nent 



valve-rod moving in nut-boxes containing cup-leathers. This peculiar arrangcmei 

 with the valve itself is shown distinctly in Jig. 1194. The guide-rod is fitted with 



