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[Page 181]

18. What are the consequences if the temperature of the Oil rises to high. It starts to evaporate, therefore lessening the output and will probably have trouble through the carbon despositing in the heaters and pipes and, choping of sprayer also by cooling the cones.
19. If you had a Group of 6 Boilers how many heaters would you have, and how are they arranged.  What are the materials of tubes and plates. Six, one fitted to each Boiler, Tubes of Solid drawn Steel rolled into foyed Steel plates.
20. What have we fitted or placed in heated tubes. Retarders that give the oil a cork-screw passage through the Tubes.
21. How are the filters fitted. Two a parallel, between pump and Heating and Two between Heater discharge and burners.
22. What is the construction of the filters. Inlet and Outlet Valves, the Oil passing through 2 strands of Steel gauge wire 22 by 32 meshes per inch clamped to perforated steel Cylinders.
23. What is the most important item to burn oil Fuel efficiently. To mix Air intimately with the oil​ Sprayers before combustion takes place.
24. What means have we to admit air to Oil Sprayers. A Come.

 

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