Lifting Water by Water Power 



309 



there is considerable fall, large amounts of water may be 

 raised at a very small cost after the plant is once in place. 



Mr. F. H. Harvey, of Douglas, Wyoming, has set up a half- 

 breast and undershot wheel, 10 feet in diameter and 14 feet 

 long, between two wing-dams on a swinging frame, in such a 

 manner as to permit it to rise and fall with the current. Being 

 connected by means of a sprocket wheel and chain to the sta- 

 tionary driving pulley, the changes in the position of the wheel 

 with the level of the river do not disturb the action, and the 



Fig. 69. Hydraulic ramming engine. (Wilson, U. S. Geol. Survey.) 



device runs night and day without attention, except for oiling, 

 pumping 1,000 gallons per minute to a height of 16 feet, using 

 a 3%-inch centrifugal pump, thus supplying more than 50 acre- 

 inches per day, or enough to irrigate 200 acres at the rate of 

 2.5 inches every 10 days. His plant is described as very effec- 

 tive, satisfactory and, for the amount of water supplied, cheap, 

 the total cost being $1,200.* 



*Bulletin No. 18, Wyoming Agr. Exp. Station. 



