BAIRD &TATLOCK (LONDON) LTD. 



Brief Instructions for Simmance-Abady Calorimeters, No. 5607-5608. 



Let water flow and gas burn, regulate outlet shutter until the temperature indicated on outlet products 

 thermometer shows that all the heat has been extracted, the water meanwhile running to waste. Observe 

 the thermometers, which after a few minutes will become steady, then observe pointer of gas meter, and 

 when it passes any marked point, direct the water (by means of the tilting bucket) into the empty measuring 

 vessel : wait until the pointer of meter passes another marked point, and then release bucket. Observe difference 

 between the cold and warm water thermometers, note quantity of gas passed and water measured, then if gas 

 n, water m, and difference in thermometers t the calorific power equals t. 



If the measurement of gas has been in litres, result = calories per litre. If the measurement of gas has been 

 in cubic feet, result calories per cubic foot; To convert this latter to B.Th.U.'s, multiply by 3.97. 



A list of gas companies, technical schools, scientists, manufacturers, and Governments using the calorimeter 

 sent on application. A certificate of accuracy signed by Simmance & Abady accompanies each instrument. 



5609 



5609' The Simmance-Abady Patent Calorimeter for testing the calorific power of light oils 

 spirits, etc. 



By means of the apparatus provided, this can be carried out as a very exact test The balance 

 used is extremely sens,tive, and the number of B.Th. units which can be developed from each sample of oU are 

 ascertained with facility, and thus information obtained in a department in which practicaUy n TworThas hiSierto 

 been done. The results are actual and absolute, and are not theoretical. 



The principle of the calorimeter is the same as that used for gas purposes (see No. 5607) The arransement 

 as shown makes the method used in oil testing sufficiently clear, but instructions are furnished with each Tapp^tus 



The results are obtained in B.Th.U.'s or calories per grain, gramme, or litre of oil. 



* "^ f r g&S W rk> " the laborator y is P rovi <^ with the necessary gas 



Price complete as illustrated 21 



1008 



