. PLAN OF A BOILER 



USED BY THE RIGHT HON. ROBERT WARD, AT BANGOR, 

 FOR STEAMING POTATOES, 



By which a very fmall quantity of fire prepares a pipe full of potatoes, put into it in 

 bafkets, and taken out in the fame manner, by means of a fmall windlafs fixed in 

 the loft. 



Section 



of the Boiler. 



REFERENCES. 



A. .Openings into the flues, of which there are four.^B. Brick flue, 

 that furrounds the boiler, and conveys the fmoke into ( the chimney. 

 C. The flue that leads into the chimney. D. Pipe for drawing off the 



water. E. Tin veflel, which being placed on the flue heats the water, 



before it goes into the boiler. F. Ciftern to fupply water for the boiler. 

 G. The fire under the boiler, which is inclofed in the hollow fpace and 

 (hikes againft M. and. pafles off through the four metal flues A. into the 

 brick flues B. H. VefTel for holding the potatoes. I. Small pipe for 

 letting off the condenfed water. K. Aperture for the fteam to pafs from 

 the boiler into the veflel. L. The height the water mould be kept at. 



NOTE. It takes two and a half hours to heat the boiler to the proper 

 degree of heat for fteam ; and forty minutes for the potatoes, which are 

 put into the boiler in bafkecs, and when fufficiently done, are lifted out 

 without breaking. The openings of the metal flues mould be placed as 

 far diltant from the flue, which leads to the chimney, as poflible, that the 

 heat may be' detained in the flue, which incircles the work. 



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