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



419 



Nos. 11086-7. 



11074. PYROMETERS, Brown Low Resistance, Permanent Type, same as No. 11072, but with scale 



graduated in Centigrade degrees. 



No A B C D 



Bange, to degrees C 400 600 800 1000 



Graduated to, degrees C 5 5 5 10 



Each $55.00 55.00 55.00 55.00 



See note under 11072. 



11075. PYROMETERS, Brown High Resistance. Recording Type, for use with either base metal or 



platinum thermo-couples. Complete with 8-day clock, 100 twenty-four hour parchment charts 



and 50 feet double-conductor wire, but without thermo-couple. 



No A B C D E P G 



Bange, 75 to, degrees F 800 1200 1600 2000 2400 3000 3600 



Graduated to, degrees F 20 25 25 50 50 50 20 



Each 137.50 137.50 137.50 137.50 137.50 137.50 137.50 



11080. PYROMETERS, Brown High Resistance, Recording Type, same as No. 11078 but with scale 



graduated in degrees Centigrade. 



No \ B C D E F 



Bange, 25 to, degrees C 400 600 800 1000 1200 1600 



Graduated to, degrees C 5 10 10 20 25 25 



Each i 137.50 137.50 137.50 137.50 137.50 137.50 



11086. PYROMETERS, Brown Recording, Continuous Type, for use where a continuous record of the 



temperature is desired over long periods of time. An 8-day clock mechanism operates the 

 record roll, over which passes a two months' roll of carbon paper. A pointer strikes the car- 

 bon band once a minute and produces the record. No ink is required. Complete with one roll 

 of carbon and one of record paper, and with 50 feet of double conductor wire. 



Xo A B C D 



Bange, 75 to, degrees F 800 1200 2000 3000 



Graduated to, degrees F 5 10 ?."> 50 



Each 220.00 220.00 220.00 220.00 



11087. PYROMETERS. Brown Recording, Continuous Type, same as No. 11086, but with chart gradu- 



ated in degrees C. 



No A B C 



Bange. 25 to, degrees C 800 1200 1600 



Graduated to, degrees C 10 10 20 



Each 220.00 220.00 220.00 



11(188. EXTRA CHART ROLLS for Nos. 110S6-7 each 2.75 



11089. EXTRA CARBON MARKING ROLLS for Nos. 11086-7 each .55 



PYROMETER, Brown Precision Heatmeter, write for special information. 



PYROMETER, Brown Transformation Point, for determining the recalescence and decalescence 



points of steel, write for special bulletin. 



11092. PROTECTING CASES, for Brown Pyrometers, Permanent Type, of polished hardwood with 

 glass front, with brackets for fastening to wall. Price includes mounting of instruments in 

 case before shipment, but not price of instruments. 



No A B 



For Pyrometer, tvpe high resistance low resistance 



Each ". ." 6.60 6.60 



