216 



A. DAIGGER & COMPANY, CHICAGO, U. S. A. 





3521 



3521 MUFFLES Alundum, recommended for furnaces, heated by electricity, may 

 be wound with a resistor, covered with alundum cement. Rectangular 

 shape, open at both ends. 



No 201 202 203 204 



Length, insfde, inches 7 10 12 14 



Width, inside, inches 3 & 4J4 5% 7 l / 2 



Height inside, inches 2% 3 3^ 5^4 



Each ... . $2.50 4.00 5.00 7.00 



The above muffles may be had with one end closed at 10% additional 

 to the above prices. Other sizes and shapes made to order. 



352l(a) 



3521 (a) 



3521 (b) 



MUFFLES Fused Silica, withstand sudden and extreme change of tempera- 

 ture. Suitable for use in gas, oil or electric furnaces, or may be directly 

 wound with resistance wire for electric heating. D shape. 

 Length, inches .............................. 4^ V/ 2 



Width, inches ............................... . &A 4ji 



Height, inches . , ............................. 2^ 3^ 



Each ........................................ $1.85 2.50 



Prices for other sizes upon application. 



Q l / 2 V l / 2 



6^ 5^ 6^ 



4^ 5 ^ 



3.75 4.25 5.00 



MUFFLES Fused Silica, as above, but of rectangular shape. 



Length, inches ...................................... . l l /& 10 12 



Width, inches ........................................ 3 43^ 5 l / 2 



Height, inches ....................................... 3 2% 4 



Each ................................................. $2.50 3.75 5.00 



Prices for other sizes upon application. 



