No. 55 199. 



Calorimeters for Calorific Value Determinations. 



623 



55 199. 1 : 3. 



E5 194, 55 195, 55 197. 1 : 





55.192. Calorimeter after Favre and Silbermann, for determining the Heat of Combustion 

 of solid and liquid fuels at constant pressure, Figure (M. P., Ill, Figs. 377/80 [II, 2, 

 Fig. 231]) 



The apparatus consists of a double-walled outer vessel with cock, which is filled with water. In 

 this vessel is contained, insulated by a cork, the calorimeter vessel, which likewise should be filled 

 with water. The combustion vessel is freely suspended in a calorimeter vessel. The combustion vessel 

 possesses a gas lead, an oxygen lead, and a tube with spiral for carrying off the gases of combustion. 

 In the combustion vessel it is possible to suspend one Platinum Crucible, with sieve bottom for burning 

 coal, one Porcelain Crucible for burning sulphur, and one small Flask for the combustion of liquids; 

 these three items are supplied with the apparatus. The combustion vessel is closed by a glass above 

 which is a mirror for observing the process of combustion. All metal parts of brass. 



55.193. Demonstration Calorimeter after Eumford, Figure, for determining the Calorific 

 Value of liquid fuels (Fr. phys. Techn., I, 2, Fig. 3158) 



55.194. Calorimeter after Parr, Figure, for technical Calorific Value determinations of 

 fuels, with Sieve, Eeagent Flask with rubber stopper, Measuring Beaker, 12 small 

 Ignition Eods, Tongs, Magnifier with stem, Spanner, and high-grade Thermometer 

 divided in Vso C. Price without motor or driving stand 



The calorimeter supplies a convenient, cheap, reliable and indispensable means for officials and 

 manufacturers for carrying out comparative determinations of the value of fuels (lignite, coal, coke, etc.) 

 employed. An experiment, including the necessary weighings, occupies but half an hour. In this appa- 

 ratus high pressure is neither used nor is it produced in the reaction, as a chemical auxiliary reagent 

 gives the necessary oxygen for the combustion and, on the other hand, binds the products of combustion. 



Complete description and instructions for use gladly sent on application. 

 Accessories for the Parr Calorimeter: see Nos. 55,195 et seq. 



55.195. Electric Motor for 110 Volts D. C., with driving stand, see Fig. 55,194 . . . 



If type of current or voltage differ from above, prices vary accordingly. 



55.196. Turbine after Eabe, with driving stand, for connecting to the water lead . . 



55.197. Spare Cartridge (Reaction Vessel), see Fig. 55,194 



55,198. Spare Thermometer, divided in 0.02 C., with value for water given 



51,546. Chemico-technical Balance in glazed walnut case, with arrestment and levelling screws, sensitivity 

 1 mg, to carry 20 g, cf. Fig. 51,548, p. 234 



s. d. 

 11. 0. 



151,622. Set Of Weights, from 1 mg to 20 g, of brass, gilt 

 55,199. Steel Cylinder for Calorimetric Experiments, after Dr. Koneck, Figure 



2. 4. 



10. 0. 



3. 10. 



1. 5. 



1. 11. 



1. 10. 



2. 0. 



1. 0. 



2. 0. 

 Cl. 1863, 3420 a. 



