310 



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



7596. 



No. 7596. 



No. 7602. 



No. 7610. 



HOT PLATE, Electric, Hoskins Three Heat, for variable temperatures. Three heats are ob- 

 tainable from parallel windings, each controlled by a snap switch on the front. High heat 

 boils one liter of water from cold in 20 minutes. Size of hot plate, 12x18 inches; maximum 

 temperature on low heat 246C. (475F.) ; on medium heat, 315C. (600F.) ; on high heat, 

 400C. (750F.); power consumption on low heat, 600 watts; on medium heat, 1200 watts; 

 on high heat, 1800 watts. Mounted on four square steel legs with polished steel top, com- 

 plete with 6 feet twin-conductor flexible cord and separable attachment plug. 



No. A B 



For volts 110 220 



Each . $40-00 *-00 



7597. EXTEA HEATING UNITS for No. 7596 each 10.00 



10.00 



7602. HOT PLATES, Electric, Multiple Unit Type, with replaceable units. Can be used interchange- 



ably on 110 and 220 volts. The method of construction forces heat to the top, providing a 

 higher temperature than is usually attained with hot plates without increased current con- 

 sumptiem. By shifting connections at the rear from the 110 volt to the 220 volt pins, the num- 

 ber of heats obtained on 110 volts is doubled. All sizes give a maximum temperature of 

 approximately 750F. (400C.); on medium heat, 600F. (315C.); on low heat, 400F. 

 (205C.) Made of cast iron with removable cast iron tops. Bases are finished in optical 

 black. 



No 10 12 22 32 40 



Size, inches 12V t xl2i/i 12%xl2% 18x12*4 24x18 6%xl8 



Shipping weight, pounds 50 51 80 135 45 



Number of heats 1 3 3 3 3 



Power consumption on low heat, watts 352 520 1070 285 



Power consumption on med. heat, watts 704 1030 2140 570 



Power consumption on high heat, watts.. 1056 1056 1550 3200 860 



Each 26.50 30.00 40.00 67.50 25.00 



7603. EXTEA HEATING UNITS for No. 7602. 



Number required 2 2 2 2 4 



Each 4.00 4.00 5.50 5.50 3.50 



7610. HOT PLATES or Drying Tables, for use with gas. The top is of one piece of steel, with pol- 

 ished surface; the legs and frame are of cast iron. Flame easily regulated Gives an even 

 temperature. 



No , A B C 



Size of plates, inches 10x18% 14%xl8% 18%x25V> 



Number of burners 1 3 3 



Eacn 12.50 16.25 26.25 



7612. HOT PLATES, same as No. 7610, but for use with gasoline gas. 



No A B C 



Size of plate, inches 10x18% 14%xl8% 18%x25V, 



Each 17.50 23.35 35.00 



HOUE GLASSES, see Sand Glasses. 



