866 



HYDRAULIC MACHINERY, FOil MINES 



upwards. This plunger in turn descends, or performs its downstroko in strict relation 

 with the ascent of the forcing plunger. In these apparatus, fig. 1 to Jiff. 7, it is evi- 



1200 



dent th.it the reciprocating movements are unaffected by the position of the cylinders 

 and that these may be placed either vertically or at any angle best suited to tin 



