Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 42
S AND APPURTENANCES 29 bridge wall, called the combustion chamber, can befilled in with earth or sand, and should slope graduallydownward from the back of the bridge wall to the floorlevel at the rear wall, and should be paved with hardburned brick. The ashes and soot can then be easilycleaned out… … FIGURE 6. for the back connection, extending from the back wallto the boiler head, by taking flat bars of iron S/8 x 4 in.,cutting them to the proper length and bending themin the shape of an arch, turning four inches of eachend back at right angles, as shown in Fig. 5-. Thedistance O-B should…
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