2(> APPARATUS FOR RAISING WATER. 



Dcfcrlption of wider and others fmaller, and by felting fuch of thefe to work 



the michine as as are requifite, for whatever may be the increafe or diminu* 



eonftru&ed for . M ' J 



raifing water, tion of power, the turning of the cock will be duly regulated 



by air condenfej by lne fl oat# 



fvphon. The water which fupplies the pipe I, and afcends in the 



apparatus, fhould be cleared, by filtration, from impurities 

 and fubflances that would obftrucl the clofure of the valves, 

 The ciflern mould have a moveable piece at the place where 

 the water overflows, to accommodate the furface of the fluid 

 to the ends of the pipes, that the full quantity of air may de- 

 fcend with each column, and that the maximum of efiecl may 

 be obtained from the fupply. 



To determine how well fuch a combination as that I have 

 defcribed would anfwer the purpofe, I had a model con- 

 structed upon the plan exhibited in Plate /. Fig, 2 ; but 

 having no convenience for an overflowing well or ciflern, I 

 was obliged to modify fome parts, in a manner tending to 

 diminifli its power. 



The water from the ciflern R, falls into a capacious veflel, 

 from whence, when the machine is at work, a hand-pump 

 continually raifes it again into a veflel above, which fupplies 

 the ciflern R through a pipe nearly half an inch in diameter, 

 under a conflant preflure of 3| inches charge. The fupply 

 keeps the ciflern continually overflowing, and the furface of 

 the water is calm and always at the fame height. 



The pipe A A is 8 feet 3 inches in length, and half an inch 

 in diameter. Its lower end is inferted into the veflel B, which 

 is clofed at bottom, and conflrucled of fuch a form as to in- 

 clude the lever which carries the float. Above that end of 

 the lever bearing the counterpoifing weight, a vertical pipe 

 6 feet 3 inches, is connected to the top of the veflel ; and 

 through this pipe, which is no wider than A, the water afcends 

 and flows to the pump: A chain, confifting of pieces of 

 wire four or five inches in length, looped together by the 

 ends, alfo pafles through it, and connects the float-lever to 

 that which moves the re-curved fyphon S. 



The bottoms of the buckets M are both together 14 inches 

 long and 6 broad. The bale partition is 4 inches high. Each 

 bucket has an end parallel with the bafe, one inch deep, pro- 

 vided with a hole to let out the water when deprefled. The 

 cock moves with lefs than a pint of water in the elevated 

 bucket. 



The 





