Installation and test of an International Harvester co gasoline engine . TEST OF I, H, C. GASOLIHE ENGIHB CALIBRATION OP INDICATOR SPRINGSThe indicators which we used were of theCrosby type and for the pressures developed,160 pound springs were found to give the bestcards. We calibrated these springs by air this purpose a fitting was made consistingof three €HTd one-half inch tees connected ina line of nipples. One end of this fittingwas connected to the air line and on the othera valve was connected to regulate the two of the tees the indicators werescrewed and into
Installation and test of an International Harvester co gasoline engine . TEST OF I, H, C. GASOLIHE ENGIHB CALIBRATION OP INDICATOR SPRINGSThe indicators which we used were of theCrosby type and for the pressures developed,160 pound springs were found to give the bestcards. We calibrated these springs by air this purpose a fitting was made consistingof three €HTd one-half inch tees connected ina line of nipples. One end of this fittingwas connected to the air line and on the othera valve was connected to regulate the two of the tees the indicators werescrewed and into the third, and between theindicators, a calibrated guage was air was let into the pipe and horizontallines drawn on the indicator cards for everyten pound increment of pressure until a maxi-mum was reached and then back again by tenpound stages to zero, A curve was plotted of the results, andwas found to vary so little that the indicatorsprings were called correct as \ce//^k£\s^A^<^Y i 100 True Pres^ur* \ |
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Keywords: ., bookcentury1900, bookdecade1910, bookidinstallation, bookyear1911
