CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



387 



No. 9894. 



No. 9896. 





9887. 

 0888. 

 9S90. 



9S92. 



9S94. 

 9S96. 



OVENS, Drying, Double Wall, same as No. 9884, but with enclosed sheet iron base. 



No A B C D E 



Outside dimensions, inches 6x8x6 8x10x8 10x12x10 18x24x18 18x36x18 



Each 811.00 15.50 24.00 63.50 95.00 



WATER GAGE, fitted to any Double Wall Drying Oven Nos. 9884-6 add 2.00 



WATER LEVEL, Kekule, fitted to any Double Wall Drying Oven Nos. 9884-6 ! ...... add s!oO 



OVEN, Drying, Double Wall, for high temperatures, similar to No. 9884, but of extra heavy 

 copper -with all seams brazed. May be used with oils or glycerine to furnish temperature's 

 up to 300C. Height inside, 8 inches; width inside, 10 inches; depth inside, 9 inches. With 

 heavy cast iron support stand 55.00 



OVEN. Drying. Double Wall, for moisture in coal, according to designs of the United States 

 Bureau of Mines. Made of copper double walled, with space for a solution of glycerine in 

 water of specific gravity 1.19 at 15C.. which will maintain a temperature of 105C. in the 

 oven space. The door is double walled with air space for insulation. To hasten drying, a 

 current of air, dried by passing through concentrated sulphuric acid, and preheated by passing 

 through a copper tube encircling the inner chamber between the walls, is forced over the 

 samples and allowed to escape through a small opening in the door. With removable shelf 

 perforated to take No. 3166 Porcelain Capsule, openings for thermometer and gas regulator, 

 mounted as shown. (See Technical Paper No. 8 of the United States Bureau of Mines page 

 40.00 



CONDENSER. Soxnlet, for use with Oven No. 9S92, see Condensers. 



OVEN, Drying, Single Wall, of copper covered throughout with asbestos, as used in tar and 

 pitch testing. Size, 8x10x8 inches 19.00 



OVEN. Drying, Single Wall, with three compartments. Made of heavy polished copper, 21 

 inches long, 8% inches high. 7 inches deep; with three chambers, each 7 inches deep and 7 

 inches wide: with separate doors, ventilators, and two tubulatures for each chamber. Pro- 

 vided with sheet iron back and support, arranged for table or wall 33.00 



