262 



CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



No. 6258. 



No. 6262. 



6247. 

 6248. 



6249. 

 6250. 



6251. 

 6252. 



6253. 

 6254. 



NICKEL THOUGH only of No. 6246, to support combustion tube, 39y 2 inches long 



COMBUSTION TUBE, Pyrex, for use with No. G246. Length, 48 inches; diameter inside, 



HEATING UNITS for No. 6246 (two required for each section). 



No A B 



For section small medium 



For 110 volts, each 3.75 4 50 



For 220 volts, each 3.75 5.00 



REFRACTORIES only of Nos. 6249 and 6250 (two required for each section). 



No A B 



For section small medium 



For 110 volts, each 1.50 1.75 



For 220 volts, each 1.50 1.75 



COILED WIRE for use with Nos. 6251 and 6252, for rewinding, sufficient for one unit. 



No A B 



For section i small medium 



For 110 volts, each 2.25 2.75 



For 220 volts, each 2.25 3.25 



$1.50 



1 inch 

 2.65 



C 



large 

 5.00 

 5.50 



C 



large 

 2.00 

 2.00 



C 



large 

 3.00 

 3.50 



FURNACES, COMBUSTION, GAS HEATED 



6258. FURNACES, Combustion, Fletcher's, for use with coal, gasoline or natural gas. Can be used 



with or without blast. Length of flame is adjustable at any part of furnace. Widely used for 

 determining carbon in iron and steel. For blast purposes, use No. 1374 Foot Blower. 



Length, inches 12 18 24 



Each 15.00 19.00 22.00 



6259. FIRE-CLAY CASING BLOCKS for Furnace No. 6258, 6 inches in length each 1.00 



6262. FURNACES, Combustion, Glaser's, improved form. Provided with mica plates for watching 



the flame during combustion. The row of burners is movable in a furrow; the burners are pro- 

 vided with stop-cocks with separate long-handled key for turning and with nickel-plated air 

 regulators. Complete with top plates of clay. 



No A B C I) 



Length, inches 14% 23 30 37 



Number of burners 10 16 21 26 



Each 37.50 50.00 60.00 75.00 



6264. FURNACES, Combustion, Glaser's. same as No. 6262, but for gasoline gas. 



No A B C 



Number of burners 10 16 21 



Each 45.00 60.00 70.00 



6265. EXTRA TOP CLAYS for Nos. 6262 and 6264 each .60 



per dozen 6.00 



6266. EXTRA SIDE CLAYS for Nos. 6262 and 6264 each .25 



per dozen 2.50 



6267. EXTRA GUTTERS for Nos. 6262 and 6264 each .15 



per dozen 1.50 



6268. EXTRA STOP-COCK KEY for Nos. 6262 and 6264 1.00 



FURNACE, Simple Combustion, see No. 2066. 



