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



265 



No. 6326. 



No. 6332. 



No. 6328. 



6323. 

 6326. 



6328. 



fir, 20. 

 6332. 



41A 



3 



4% 

 5% 



9B 

 8.50 



3 

 .85 



6333 

 6334. 



FURNACES, Crucible, Fletcher's Perfected Injector. Can be used on coal, gasoline or natural 

 gas. Burner is in one easting, preventing nozzle from becoming overheated. Complete with 

 one crucible, but without foot blower. 



No 41 



For crucible, No 



Diameter of crucible space inside, inches 3% 



Height of crucible space, inches 3% 



Foot blower required to furnish blast, No 9A 



Each $6.00 



EXTRA CRUCIBLES for No. 6322. 



No 1 



Each 70 



FURNACE, Crucible, Fletcher's Perfected Injector No. 41E, same as No. 6322, but with double in- 

 jector burner for kerosene. Requires No. 9B Foot Blower to furnish blast. Dimensions same 

 as No. 6322, size 41. Complete with No. 1 elay crucible and double burner, but without foot 



blower 11-50 



FURNACE, Fletcher's Crucible and Muffle Combined, for use with coal, gasoline or natural gas, 

 from 1$ or preferably % inch supply. Requires No. 9B Foot Blower to produce blast. Will take 

 No. 3 crucible or No. 6 when cover is reversed, or a muffle 3%x2%x6H inches. Height of fur- 

 nace, 11 inches; outside diameter, 9 J o inches: diameter of crucible space, 6 inches; height of 

 irueible space, 6% inches; maximum gas consumption, 100 cubic feet per hour. Complete with 



injector burner, No. 3 clay crucible, and muffle 14.00 



EXTRA PLUMBAGO MUFFLES for No. 6328 each 3.00 



FURNACE, Crucible. Fletchers Draft No. 15, for crucibles up to 4x3* inches; for use without 

 blast. The adjustable burner is of special form furnishing a number of concentric names, and 

 will operate upon coal, gasoline or natural gas. With gas consumption of 50 cubic feet per hour, 

 using % inch supply, it will rapidly melt a crucible of gold or silver. Height of furnace from 

 table to top of lid, 18 inches; diameter of crucible pot, IV, inches; height of cmcible pot, 10 

 inches; diameter of flame space in furnace, 6*4 inches; height of flame space, 5V. inches. Com- 

 plete with Xo. 3 clay crucible, clay cylinder and tongs, and 6 feet of pipe 19.00 



Extra Clay Crucibles for No. 6332, size No. 3 each .20 



Extra day Cylinders for No. 6332 each .50 



