. Influence of valve setting on efficiency and capacity of a 25 horse power International Harvester Company gasoline engine. Figure 22,-69-. Figure 23,-70- SAMPLE INDICATOR CARDS TEST # 3. Pull Spring Cards; Cards were taken about once a min-ute, the average card being taken as a sample, e-nd in-cluded herewith. Scale of spring 240 lbs to 1 inch. Light Spring Cards; These were taken before the regulartest was started. Scale of spring 20 lbs to 1 inch. -7?-


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