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Fig. 5CentralogramIn this way the numbers at the beginning of a column show the particularjob performed, while the numbers at the end of the column identify theoperator and the reason for stoppage (completion of job, machine fault, andthe like).Fig. 6Summary of time factors and codesThe Centralograph has enabled us to obtain absolutely definite control overthe machine operations. The cards fed into the machine are immediately showDMachine typeThe CentralographYearCol 1-2DIRECTIONS:SUMMARYMonthCol 3 AFOR KEY-PUNCHING MACHINE ANALYSIS DATAWeekCol 5records the hour divided intosix 10 min. periods. Since our statistics shall besuitable for the decimal system, the hour is dividedinto ten 6 min. periods. So the recording on theCentralogrammust be read off on the scale.Weekdo,Col. 6Machine codeCol. 7-10• ] !Job No.Col 11-12•Mark X forcode 75and 76Col. 13OperatorNo.Col 14-15No. of hourswhole dec.Col. 16-17 Col. 18CODES:Weekdays: Monday. 1Tuesday r 2etc.1MachinecodesTab. No 42114214-- 5191- 5192InterpreterNo.60215521SorterNo» »»» »» »083108320821082208230771» »0772= 0773, ' JU—-^_130
in that machine's "output" column. This means that time factors for productivetime and idle time can be read off direct for each machine. In addition, thesetime factors for each machine have been supplemented by the coded data,dialled on the machine by the operators or service engineers. Fig. 5 shows theresult of these for a limited period.Fig. 7x 780iAn example of monthly machine statisticsEvery morning the previous day's recordings are analysed and processed asfollows: with the aid of a rule graduated in hours and tenths of an hour, thetime factors are measured for each machine and job. The codes indicated areLIST NO. 1(per week)OperatorNo.NOOF HOURSTuesday Wednesday Thursday Friday Saturday Sundaychecking &re-runningLIST NO. 2(per week)NO. OF HOURSTuesday Wednesday Thursday Saturday Sundaychecking &re-runningo 7 v io 7 7 iO 7 7 IO 7 7 IO 7 7 IO 7 7 IO 7 7 IO 7 7 IO 7 7 1O 7 7 IO 7 7 IO 7 7 IO 7 7 I2 22 33 23 65 63 e 2 OIiLIST NO. 3(per month)Erroichecki4 2 11A 2 I 2.42(35 I 9 #o zO 2O 2O 2O 2O 7 7 2O S 2 IO a 2 2o a 3 io a 3 2LIST NO. 4(per month)OperatorNo.REMARKSNO. OF HOURSErrorThe wholecheckingmonlhre-runninq7 S>S Oaia 2e 3aAa 5a a6 7a aa 99 39 62 9 116 3 66 5 25 O 19 3 62 3 O 7a i 61 ( 5 716 5 O1 A 9 B6 2 51 O1 Aai a1 212 2 9 53 6131
Page 3 and 4: ERICSSON REVIEWVol. XXXVII No. 4 19
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