Fire-places and Kitchen Utensils. 



305 



of the dripping-pan, in the manner represented in the 



Fig. 19. 



The Fig. 20 shows the manner in which the blow- 

 pipes have been constructed of late. 



Fig. 20. 



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JO, 



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The advantages of the former construction were a 

 great length of tube, and consequently a greater effect 

 on that account ; and a good direction to the current 

 of hot air. The disadvantages were the difficulty of 

 removing the tubes to repair them, without unsetting 

 the roaster ; and the difficulty of procuring blowpipes 

 of this form of cast iron ; and, lastly, the great depth 

 of space that was required for setting the roaster. 



The advantages of the blowpipe, represented in 

 Fig. 20, have already been noticed. The disadvantage 

 from want of length is compensated by a small increase 

 of diameter. When this blowpipe is fastened to the 

 roaster, its flange is covered with a cement; and 

 the vertical end of the pipe being introduced into 

 the roaster through the circular hole in the bottom 



VOL. III. 



20 



