Fire-places and Kitchen Utensils. 411 



part by means of rivets, two of which are seen at F and 

 at G. In one side of this lower part there is a circular 

 hole at K, about \\ inches in diameter, which serves 

 for the admission of air, and which is furnished with a 

 register-stopper. The bottom of this furnace, instead 

 of being made flat, is spherical, projecting upwards ; 

 which form was chosen in order to prevent as much as 

 possible the heat from the fire from being communicated 

 downward. This furnace will require no handle, as its 

 projecting brim will serve instead of one. 



It will be observed that all the pieces of which this 

 furnace is composed are of such forms that the moulds 

 for casting them will readily deliver from the sand ; 

 and that circumstance will contribute greatly to the 

 lowness of the price at which this most useful article 

 of kitchen furniture may be afforded. 



The perforated cast iron bowl, A, which constitutes 

 the fire-place, is not confined in its place, and its form 

 and its position are such that its expansion with heat 

 can do no injury to the outside of the furnace. 



When the two pieces which form the body of the 

 furnace are fastened together, their joinings may be 

 made tight with cement. 



A little fine sand should be put into the hollow rim, 

 a, b, of the furnace, in order that it may be perfectly 

 closed above by the lower end of the hollow cylinder 

 of its boiler ; and a little sand or ashes may be thrown 

 upon the bottom of the circular cavity, o, p, into which 

 the smoke descends before it goes off by the tube, L, 

 into the chimney. This last precaution will prevent 

 the air from making its way upwards from the ash-pit 

 directly into the cavity, 0, /, occupied by the smoke, 

 without passing through the fire-place. 



