Identifier: farmengineshowto00step (find matches)
Title: Farm engines and how to run them; the young engineer's guide ... with special attention to traction and gasoline farm engines, and a chapter on the science of successful threshing
Year: 1910 (1910s)
Authors: Stephenson, James H
Subjects: Farm engines Traction-engines
Publisher: Chicago, F.J. Drake & Co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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FIG. 3. THE HUBER FIRE BOX. with water, to the smoke-box on the right, above whichthe smokestack rises. It wdll be noticed that the walls of the firebox aredouble, and that the water circulates freely all about thefirebox as well as all about the fire tubes. The inner wallsof the firebox are held firmly in position by stay bolts, aswill be seen in Fig. 3, which also shows the position ofthe grate. YoUNc engineers guide.
Text Appearing After Image:
1301LEUS. \^ RETURN FLUE TYPE OF BOlLEk. The return flue type of boiler consists of a large :en-tral fire flue running through the boiler cylinder to thesmoke box at the front end, which is entirely closed. Thesmoke passes back through a number of small tubes, andthe smokestack is directly over the fire at the rear of theboiler, though there is no communication between the fireat the rear of the boiler and it except through the main flueto the front and back throughthe small return flues. Fig.4 illustrates this type ofboiler, though it shows butone return flue. The actualnumber may be seensectional view in Fig. 5. The fire is builtin one end of themain flue, and isentirely surround-ed by water, aswill be seen in theillustration. Thelong passage forthe flame andheated gases en-ables the water toabsorb a maximumamount of the heato f combustion.There is also anelement of safety inthis boiler in that the small flues will be exposed firstshould the water become low, and less damage will be

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