310 



Hydraulics for Farmers. 



[June, 



an inclining tube, by which momentum and power is gained. 

 In the experiment of Mr. Strawbridge, power was gained suffi- 

 cient to burst his machine, by increasing the height of the syphon. 

 "A few years ago" says, Mr. Strawbridge, before these ma- 

 chines had come into use, in the United States, I caused one to be 

 constructed near Covington, La. The fall of water requisite to 

 work it being very small, I continued to increase it by the im- 

 provement which 1 am about to describe." 



Syphon Ram — Fig. 7. 



" 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 terminating in the machinery itself, 

 which is placed a few inches lower. C, is a funnel connecting 

 with the interior of the syphon 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 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 sy- 

 phon. This being completely filled, the cock B is turned so as to 

 cut off" all communication with the funnel, leaving the syphon still 

 open. The cocks at A and D, are then opened simultaneously, 

 when the water begins to enter the short leg of the syphon and 

 descends the legD in a continued stream, with a force amply suf- 

 ficient to set the machine in operation." 



"In this manner by employing a syphon instead of a straight pipe, 

 conducting from the spring or pond to the ram, a fall six to twelve 

 inches, which would not afford sufficient power to work the ram, 

 may be increased in power so as to equal that of a natural fall of 

 many feet. A fall of one loot or more may be obtained in any 

 situation by partly burying the ram, so as to place it lower than 



