1552. Brougham, F. J., [Kirkpatrick, H. T. E.]. Jan. 19. Feed-water, heating.-A number of compartments c are arranged underneath the main water-reservoir b in the tender of a locomotive. In each of these is a series of steam-heated tubes f comprising two rows one above the other and secured at their front ends to headers g. Steam entering at h passes to the chamber m, thence through holes s in the partition d into the upper part of the adjacent chamber. After traversing the upper and lower rows of tubes attached to this chamber, the steam returns to the lower compartment of the chamber and thence passes between the partitions n, d, through the cut-away portion of the former and perforations in the latter, to the upper part of the adjacent chamber m and the tubes extending therefrom. The bottom of the last compartment m is perforated to allow the escape of the water of condensation. The feed-water passes from the tank b through a valved opening t into the last of the compartments and flows by way of perforations p, q in a reverse direction to that of the steam to the outflow w to the feed-pump. If an injector is used, an outflow x is employed at one end of the same compartment in which the water enters.
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