Should constantly endeavor to expand his mind as to the management, construction and care of boilers, engines and their appliances.
Should carry this book in his pocket for reference as it contains much valuable information and in a time of need may save much time and expense, or even prevent a catastrophe.
Boilers.
HORIZONTAL TUBULAR BOILER.
Q. How is a horizontal tubular boiler constructed?
A. It has a cylindrical shell, with heads riveted at each end, in which are placed a large number of tubes, 4 inches or less in diameter. It is set in brick work, with the furnace at one end, beneath the shell. The products of combustion pass under the boiler its full length and return through the tubes or flues to an up-take at the front end. It is furnished with a man-hole beneath the flues, and hand-holes for cleaning, and generally has a steam dome.
Freeman’s Horizontal Tubular Boiler.