354 IOWA DEPARTMENT OP AGRICULTURE 



meet the edge of the pan, thus making a tight cover. Then cut a 

 hole in the center of the cover II/2 inches in diameter and solder on 

 a round galvanized iron pipe 414 inches in height and 1% inches in 

 diameter. The cover should then be insulated by covering with a 

 piece of asbestos board five-sixteenths of an inch thick; a hole 

 should be cut in the center of this piece to allow the steam outlet 

 pipe to pass through. Then for the upper part make a shallow pan 

 of galvanized iron 14 inches square with sides five-eighths of an inch 



^xri^ffge . 



Fig. 2. — Section thi-ough cover of roasting pan. 



high; cut a hole li/L' inches in diameter and fit the pan on top of the 

 asbestos, allowing the steam outlet pipe to extend through the center 

 }iole. When the pan is pressed down closely to the asbestos, solder 

 it to the steam outlet pipe which passes through it. On the pan four 

 strips of stiff galvanized iron three-eighths of an inch wide are 

 soldered. These should extend three-eighths of an inch above the 

 ))ottom of the pan, as shown in figure 1, and should run from a 



-VO CAKr/> OF fAfitV ^ 



Fia. 3. — Section through galvanized-iron cover, showing paper insulation. 



distance of 1 inch from the corners to 1 inch from the steam outlet 

 in the center. A section through the cover (B) is shown in figure 2, 

 In case asbestos can not be obtained, paper may be used instead. 

 Pack papers tightly to a height of three-eighths of an inch over gal- 

 vanized iron cover with another iron sheet, soldering all edges 

 together to make absolutely tight seams. This will form an insu- 

 lated cover three-eighths of an inch thick which will replace the 

 asbestos. A cross section through this type of cover is shown in 

 figure 3. The construction is very similar to that shown in figure 2. 



