APPARATUS FOR HEATING WATER, 2Q3 



XI. 



ftefci'iption of an Apparatus for healing Water hj ivajle Steam* 

 Invented by Mr. Arthur Woo l f . 



A HE following apparatus was ere&ed at the extend ve Engine for heat, 

 brewery of Meffirs. Meux and Co. in Auguft, 1800, and has ^f" hy 

 been in ufe ever fince. I law it work a few weeks ago, and 

 obferved with great pleafure the facility and precifion with 

 which it operates, and I have .great fatisfaction in prefenting 

 it to the reader as a very judicious and ufeful combination. 



Plate IX. A reprefents a fteam pipe from the brewing Particular de- 

 copper, fcription. 



B a valve with its weight. 



C the veflel in which the fteam is condenfed. 



D a pipe that conveys the cold water from a refervoir. 



E a conical valve through which the water is injected. It 

 is connected with the lever F. 



G is a bended pipe to prevent any of the fteam from efcap- 

 ing with the hot water. 



H a fmall receiver from which the hot water may be con- 

 veyed to different fituations by means of pipes and cocks. 



I a pipe open to the receiver to prevent a vacuum in cafe 

 the water fliould be made to defcend in any of the pipes. 



K a fmall pipe to convey the fteam into the regulator. 



L the regulator which is compofed of three cylinders, the 

 outfide and infide being clofed together at bottom, leaving 

 a cavity between, which is filled with water ; the middle or 

 moving cylinder is inverted and clofe at top. It fcrves for a 

 pifton, and is connected to the lever M, on which is a Aiding 

 weight N, by which the quantity and heat of the water may 

 be varied at pleafure. 



O is a valve through which the fteam is let out when not 

 iifed for heating water. 



TJm effect of this engine may be eafily underftood. The Explanation ofj 

 weight of the inverted hollow pifton L pretfes down the valve the manner in 



r> i V i t i i • >• i , which it acls. 



L by means ol the levers, and this preilure may be regulated 

 by fixing the weight N nearer or farther from the centre of the 

 upper lever. When the fteam through A has acquired a cer- 

 tain degree of ftrength in the veifel C, it raifes the pifton by 

 its action through K, and confequently opens the valve E. 

 A fheet of water immediately dalhes throngh, as reprefented 

 3 in 



