610 



PROCEEDINGS OF SECTION H. 



(7) It is a great advantage, especially in the navy, to have a 

 boiler which can on occasion be pressed to give nearly double its 

 normal capacity. 



All of the above-recited advantages, especially the last, fit this 

 boiler, also for electric power or light service where the demands 

 on the jilant are often made without notice, and consequently a 

 boiler which has a good efficiency both when working under its 

 true power, and when pressed far beyond its true capacity, is 

 required ; and also, as electric stations are usually in crowded 

 centres where real estate is expensive, it is just as important 

 that the boiler should occupy the minimum space as it is on 

 board ship. The result is that all the large electric companies 

 recommend water tube boilers and supply no others. The same 

 reasons should make hydraulic power companies also give them 

 the preference. 



Professor Kernot and the author conducted some trials of a 

 water tube boiler, patented by Mr. Montague H. Churchill Shann 

 and erected by him, in the boiler-room at the Parliamentary 

 electric light station, Melbourne. 



The following is the tabulated records of these trials : — 



APPENDIX No. 1. 



Record Table of Trials of Mr. Montague Shami's Boiler at Parliamentary 

 Electric Station, Melbourne. 



