418 



THE CENTURY, 



vated, then these pipes will all reverse their positions, 

 being connected with the buckets by means of flexible 

 leather hose, or suitable jointed metal tubing. 



We have next to consider the present article No. 21. 

 The conditions stated require the use of but one pulley, 

 one cord, and two buckets, without any &quot;force&quot; or 

 pump plunger, or &quot; any wheel, or sucker. 7 An arrange 

 ment so simple seems only possible to be attained by 

 some such plan as that exhibited in the illustration 

 given below. We have here an endless chain or cord, 



A B, passing over the pulley C, 

 with a bucket D, at the upper 

 end 5 and another bucket E, at the 

 lower end ; the first in the act of 

 discharging its contents into the 

 trough G-, the second re-charging 

 with water at the level E. This 

 endless chain is further supplied 

 with a series of conical or other 

 shaped buckets, #, , set on the 

 endless cord in a reverse direction, 

 so as to receive water conveyed 

 from an upper stream by the 

 spout F, by which means the 

 side B, of the cord will descend, 

 and the side A, ascend, &quot; without any other force 

 than its own motion,&quot; and that &quot;with two buckets 

 only, day and night.&quot; On the side , the conical 

 buckets reverse and empty themselves, thereby lighten 

 ing the ascending side A, of the endless chain or cord. 



22. 



To make a River in a Garden to 

 ebbe and flow conftantly, though 

 twenty foot over, with a childs force, 



