Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 56
crown bolts are placedhaving the head inside th?nut bearing on a plate on top of th:is also a thimble or ringr for each fire-box and the crown bar. There bolt to pass through, between the top of the crown THE BOILER 49 sheet and the bottom of the crown bars. These thim-bles maintain the proper… … Figure 11 Fig. II shows a longitudinal section of a fire-boxhaving the crown sheet secured by radial stays, andFig. 12 is a transverse section and back view of thesame. The principal defect in this construction is,that in order to resist successfully the strains inducedby the pressure on the crown…
Locomotives
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