It sand every three minutes, at a temperature of not less in the construction of this plant is the central tower, rust be self-contained and operated with at least as than 310 degrees. few hands as the ordinary stationary plant. It must which is constructed of comparatively light weight Upon the… … the side of the car, the modification of up and into the re- certain elements of ceiving end of the sand heater. The construction and novel features of centrally between the two cars, which are placed the plant, its capacity may be readily increased to any this sand heater cannot at present be…
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