750E24: "Portable electric pumping plant showing method of screening ditch water. 10 hp. G.W. Epeneter Palisade"
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Image is also Figure 5, "Portable electric-powered pumping unit. Water flows through a single longitudinal screen and is drawn off from sump at left. Excess water passes on carrying most of the floating debris. This screen required frequent cleaning because of low capacity," in "When to Use Sprinkler Irrigation in Colorado" by W. E. Code, 1949.