230 MACniNEEY I^ CONNECTION WITH WATER. 



Fig. 256. 



Garden-engine. 

 that of the water-ram. In- ^^s- 257. 



stead, however, of compress- 

 ing the air, as in the ram, 

 by the successive strokes of 

 a column of running water, 

 it is accomplished by mcuns 

 of a forcing-pump, driving 

 the water into the reservoir, 

 from which it is again ex- 

 pelled with great power, by 

 means of the elasticity of 

 the compressed air. Fig. 256 

 represents a garden-engine, 

 movable on wheels, which 

 may be used for watering 

 gardens, washing windows, 

 or as a small fire-engine. Fig. 

 257 is another, of smaller 

 size, for the same purposes, 



and in a neat and compact CvUndrical Garden-cngme. 



form, the working part being within the cylindrical case. 



