434 SUPPLEMENT. 



gone off into steam, pour 'a. little more into the boiler, 

 through the funnel G. 



In order to make this engine raise water to any gentle- 

 man's house ; if the house be on the bank of a river, the 

 pipe B C may be continued up to the intended height, 

 in the direction HI. Or, if the house be on the side or 

 top of a hill, at a distance from the river, the pipe, 

 through which the water is forced up, may be laid along 

 on the hill, from the river or spring to the house. 



The boiler may be fed by a small pipe K, from the 

 water that rises in the main pipe B C H I: the pipe K 

 being of a very small bore, so as to fill the funnel G 

 with water in the time that the boiler E will require a 

 fresh supply. And then, by turning the cock d, the 

 water will fall from the funnel into the boiler. The fun- 

 nel should hold as much water as will about half fill the 

 boiler. 



When either of these methods of raising water, per- 

 pendicularly or obliquely is used, there will be no oc- 

 casion for having the cock c in the main pipe B CHI; 

 for such a cock is requisite only, when the engine is 

 used as a fountain. 



A contrivance may be very easily made, from a lever 

 to the cocks b, d, and e ; so that, by pulling the lever, 

 the cocks b and d may be opened when the cock e must 

 be shut ; and the cock e be opened when b and d must 

 be shut. 



The boiler E should be inclosed in a brick-wall, at a 

 little distance from it, all around ; to give liberty for the 

 flames of the fire under the boiler to ascend round about 

 it. By which means, (the wall not covering the funnel 

 G) the force of the steam will be prodigiously increased 

 by the heat round the boiler ; and the funnel and water 

 in it will be heated from the boiler ; so that, the boiler 

 will not be chilled by letting cold water into it ; and the 

 rising of the steam will be so much the quicker. 



