No. 7. 



Machine for Raisivg Water. 



217 



For the Farmers' Cabinet. 

 Machine for Raising Water. 



I AM pleased to find by the frequent notice 

 taken of Montgolfier's Hydraulic Ram, in 

 the. agricultural newspapers and magazines 



short leg of the syphon and descend the leg 

 B D, in a continual stream, with a force am- 

 ply sufficient to set the machine in opera- 

 tion. 



In this manner, by employing a syphon 

 instead of a straight pipe, conducting from 



of the North, that this simple, effective, andlthe pond or spring to the ram, a fall of six 

 inexpensive machine, is likely to be here-|'or twelve inches, which would not aflbrd 

 after more generally used for the purpose of sufficient power to work the ram, may be 



raismg water. It is a matter of surprise 

 that so beautiful a contrivance should have 

 become so obsolete and neglected, as to be 

 scarcely known except to the scientific. 



A few years ago, before these machines 

 had come into use in the United States, 1 

 caused one to be constructed near Coving- 

 ton, La. The fall of water requisite to 

 work it being very small, I continued to in- 

 crease it by the improvement which I am 

 about to describe. 



A B D is a leaden pipe, bent into the 

 form of a syphon and carried over the bough 

 of a tree, the short leg A B resting in the; 

 pond or spring that feeds the machine, and! 

 the longer leg B D, conducting to and ter-' 

 minating in the machine itself, which \s 

 placed a few inches lower. C is a funnel 

 communicating with the interior of the sy- 

 phon through an air-tight three-way cock B, 

 of the same calibre as the syphon itself At! 

 A, under water, and at D, a few inches 

 lower down than the end of the pipe at A, 

 are stop-cocks, also of the same diameter as 

 the interior of the pipe. 



The cocks A and D being closed, the 

 cock at B is opened, so that water poured 

 into the funnel C, will fill both legs of the: 

 syphon. This being completely filled, the| 

 cock B is turned so as to cut off" all commu- 

 nication with the funnel, leaving the syphon 

 etill open. The cocks at A and D are then 

 opened simultaneously, when the water of 



increased in power so as to equal that of a 

 jnatural fall of many feet. A fall of one 

 ifoot or more may be obtained in any situa- 

 tion, by partly burying the ram, so as to 

 place it lower than the feeding reservoir; 

 and the escape of the waste water will not 

 impede the working of the valves, for I have 

 made it work at a depth of two feet under 

 water, by simply lightening the escape-valve 

 at H, of a part of its weight. A fall of five 

 or six feet, is amply sufficient for all ordinary 

 purposes. The power will, of course, be in 

 proportion to the perpendicular height of the 

 syphon; which cannot, however, be made to 

 act, if its elevation exceeds thirty-two feet. 

 This will give a power of 14 pounds to the 

 square inch, if merely the dead pressure be 

 taken info consideration, but a much greater 

 power if the momentum of the descending 

 column of water be calculated. The forcing 

 power of the air vessel, like the power of a 

 Eramah press, will increase in proportion to 

 the enlargement of its horizontal area. An 

 air vessel twelve inches square, with a head 

 of 32 feet, would exert a power on the wa- 

 ter within it greatly exceeding 2000 pounds. 

 For the information of those unacquainted 

 with the machine, it may iiere be well to 

 sketch briefly its operation. Suppose B D 

 H to bo a pipe leading from an elevated 

 spring to lower ground, and closed at the 

 lowest end. H is a valve of leather, metal, 

 wood, or caoutchouc, opening inwards and 



the spring immediately begins to enter thel|downwards, loaded with a small weight, and 



