304 Hydraulics for Farmers. [June, 



The pipe A is enlarged below the air-chamber L, as at A"*, and 

 has an opening into the air-chamber L, through which the 

 water passes when the valve B is closed. 



B is a valve attached to a curved, vibrating lever C, turning on 

 gudgeons D, in boxes, as its fulcrum, having a set screw E, for 

 regulating the descent of the valve, and a counter balance F, for 

 adjusting the valve. When this valve B is down, as shown in 

 Fig. 7, the water from the head flows through the opening, which 

 it closes; when it is up, as shown in Fig. 6, the water rises into 

 the pyramidal chamber L, through the opening 0, and condenses 

 the air therein. 



H is a pipe for conveying the spring water to the spring water 

 chamber. I is the air-chamber into which the water is forced. 

 J is the valve for holding it. K is a pipe, or hose, for conveying 

 the water to its place of destination. The above named parts, 

 lettered from A to K, inclusive, are made and operated in the usual 

 manner. The improvements are as follows: 



L is a pyramidal chamber, into which air is admitted through 

 the valve B, when it descends by the pressure of the external air, 

 to supply the partial vacuum created in the pipe Aj and chambers 

 L and N. 



This pyramidal chamber has a communication, by a small open- 

 • ing M, at the top, with another chamber, N, called the spring or 

 pure water chamber; through which opening M, the air, so con- 

 densed, is forced, and presses on the spring or other water, intro- 

 duced into the same through the pipe H, by which pressure the 

 water in said spring water chamber is forced upward through a 

 tube P, reaching to near the bottom of said chamber N, through 

 the valve J, into the air-chamber I; said valve being represented 

 as open in Fig. 6, and as closed in Fig. 7. 



To raise water with this machine, open the valve B, and let the 

 water flow out; then, by closing the valve B, the water, which is 

 now in motion in the pipe A, will pass through the opening 0, 

 into the pyramidal condensing chamber L, and condense the air 

 the same as before; the condensed air will force the spring water 

 up the tube P, (which had entered through the pipe H, during the 

 continuance of the partial vacuum above spoken of,) into the 

 chamber I, and condense the air therein, until its density is equal 

 to that in the condensing chambers L and N, below. At this time 

 the spring water will cease to flow into the air-chamber I, the 

 valve J closes, and the air in the chambers I, L and N commences 

 expanding, that in the lower chambers, L and N, giving motion 

 to the propelling fluid and driving it backward, producing a par- 

 tial vacuum in the machine, and the air in the upper chamber I, 

 forcing the spring water to its place of destination. 



The said partial vacuum in the machine, caused by the reaction 



