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



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421. 



424. 

 425. 

 426. 

 427. 

 428. 

 429. 



No. 421. 



No. 422. 



No. 426. 



C 



10 



11 



80.00 



AUTOCLAVES, High Pressure, Continued. 



pounds. The safety apparatus is an effectual safeguard against explosions. Complete with gas 

 heater, thermometer, wrenches, manifold with blow-off valve and safety apparatus. 



No .' A B 



Diameter inside, inches 8 



Depth inside, inches 8 11 



Each : $60.00 67.00 



GAS REGULATOR for Autoclaves No. 420, designed to screw into manifold. Easily attached. 

 By means of this device the gas flow is automatically controlled to maintain any desired tem- 

 perature or pressure. Provided with special attachment for keeping burner lighted when gas 



flow is reduced to low pressure 19.25 



422. AUTOCLAVES, Pressure Cookers, of cast aluminum, very useful for sterilization or digestion 

 under pressure. Extensively used in domestic science laboratories for cooking under pressure. 

 Can be used over any laboratory burner. Complete with pressure gage reading to 30 pounds, 

 safety valve, petcock, and attachment for thermometer. 



No 



Diameter at top, inches 



Greatest diameter, inches 



Depth, inches 



Capacity, quarts 



Weight, pounds 8% 



Shipping weight, pounds 11 



Each 19.00 



A 

 8 

 10 

 10 

 10 



B 



9% 



12 



17 



14% 



J9 

 25.00 



12% 

 14 

 25 

 21 

 28 

 31.00 



AUTOCLAVES, Pressure Sterilizers, single wall, made of steel boiler plate, riveted and calkod 

 at the seams, with heavy flange. The cover is of semi-steel with sanitary packing and thumb 

 screw clamps to hold firmly in place, and is provided with handles. The equipment includes 

 polished copper crate tinned inside to hold articles to be sterilized, platform for crate, safety 

 valve, steam gage, steam circulating device, thumb-nut wrench, and cover lifting device (on 

 two larger sizes). Finished in aluminum bronze. When ordered without burner or coil, adjust- 

 able support stand will be furnished. 



No A 



Tested for pressure, pounds 30 



Height of retort, inches 18 



Diameter, inches 12 



Height over all, inches 39% 



Width over all, inches 26 



Sterilizing capacity, cubic inches 1350 



Shipping weight, pounds 130 



Size of crate, inches Il%xl3 



Without gas burner or coil 50.00 



With gas burner 60.00 



With gasoline burner 60.00 



With steam coil 60.00 



With coil and gas burner 65.00 



With coil and gasoline burner 65.00 



