390 On the Construction of Kitchen 



entering the shallow groove of the register, reposes on 

 it, while its upper end is closed by the boiler which, 

 resting on it by its brim, is suspended in it, and conse- 

 quently is surrounded by the flame. 



This cylinder must be made quite flat or even at its 

 two ends by grinding it on a flat stone, and the boiler 

 must be made to fit it accurately, not however by fitting 

 too nicely into its opening (which method would not 

 be advisable), but by making the under part of the iron 

 ring which forms the projecting brim of the boiler per- 

 fectly flat, and causing the boiler to be suspended by that 

 ring on the flat' end of the cylinder. 



To prevent the escape of the flame under the bot- 

 tom of the cylinder or between its lower end and 

 the circular register-plate on which it stands, a small 

 quantity of sand or (what will be still better) of fine 

 filings of iron or brass may be put into the groove in 

 which the cylinder is placed ; and the same means 

 may be used for making the joinings tight between 

 the circular registers and the flat plate to which they 

 belong. 



The following figure, which .shows a vertical section 

 of this register-stove with its fire-place and its two 

 boilers, or rather stewpans, will give a clear idea of 

 the arrangement of the machinery. 



These stewpans, which are lo-J- inches in diameter 

 above and 6 inches deep each, are constructed accord- 

 ing to the directions given in the seventh chapter of 

 this Essay. They are of copper, tinned, and are turned 

 over flat iron rings at their brims. Their handles are 

 not seen in this figure. Their covers, which are of 

 tin and made double, are on a peculiar construction. 

 They are so contrived that a small saucepan for melt- 



