:j6S Engine fcr raijing Wattr. 



A SeBlon and Defcnptkn of a Machine that mil raife a Body of Water to any Height, tiot ex- 

 teeding the Height of a Column that will counterbalance the Prejfure of the Atmofphere (fay 

 30 Feet) by the Tkfcent of Part of the fame Body of Water , through a fomswhat greater 

 Height, and aided by the Prejfure of the Atmofphere, 



Let A Plate VIII. figure 2, be a fphere of copper, or other metal, about i foot 6 



Inches in diameter. 

 B Another fphere about 2 feet 6 inches in diameter. 



C A refervoir of water kept conftantly fupplied. 



D A glafs cap about 6 inches long, fixed on the top of A, for the purpofe of 



feeing when the water begins to fill and has filled A. 

 E The upper refervoir into which A is to be emptied. 



1,1, A pipe, about 0.5 inches in diameter, fixed into the top of B, and rifing 



upwards to within about an inch of the top of D, 

 a A pipe of the fame diameter, a few feet longer than 1,1, fixed into the bottom 



of B, and extending downwards in a perpendicular or inclined direftion. 

 3 A pipe of one inch and a half in diameter, fixed to bottom of A, and ex- 



tending upwards through it, to within about two inches of the top of D. 



Vidf fig. 3. 

 ^,4, A pipe about half an inch diameter fixed into the top of B, and extending 



upwards, through, and fixed to bottom of C. 



5 A pipe of fame diameter fixed to top of B, and terminating In and fixed to 



bottom of C, 



6 A pipe of fame diameter fixed into bottom of A. 



y A trumpet mouth pipe fixed to bottom of pipe 3, and extending downwards, 



to within about an inch of bottom of refervoir C. 

 a, h,c, ic d Are cocks fixed to the pipes. 



The fpheree, pipes, cocks, and joints, muft all be air tight. 



In order to raife water from refervoir C into refervoir E, all the cocks being turned off, 

 proceed thus : turn on the cocks b and c, in order to fill B, and when B is full, turn off the 

 cocks b and e, and turn on the cock d. The water will then begin to run from the fphere 

 B, and will, by means of its communication through the pipe i, i, with the upper fphere A, 

 rarify the air therein, and the atmofphere at the fame time preffmg on the water in C, will 

 caufe it to rife through the trumpet mouth at 7, of pipe 3, and by falling over the top of it 

 ajt D to fill the fphere A. When A is full, which may be feen through the glafs cap D, 

 turn off J, and turn on a, b, and c, by which means A will empty into the refervoir E, and 

 B will be replenilhed for another operation. Then turn off the cocks a, b, and c, and turn 

 on thp cock d, and repeat the operation of raifing the water into A. But if it be re- 

 quired 



