Facit NTK, Manual

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Page 3: ...t Manual for the calculating machine model 1 TK A KTIEBOLAGET ATVIDABERGS INOUSTRIER STOCKHOLM S TEDEN...

Page 4: ...t hand turn handle with right ivlarking the decimal point Care of the machine i The machine is foolprooi Addition Subraction Multiplicat Division 10n 3 4 5 6 6 7 8 8 9 10 10 11 1 2 LJ 1 4 1 5 t5 1 6 t...

Page 5: ...by reason of their first class qr rality and reliability in addition to the r rseful calculations which they are capable of handling As will be shown in this manual the Facit NTK is extremely easy to...

Page 6: ...ion to the 1O key sysrem also shows the following features o erall tens transmission in the product and multiplier registers n hich facilitates shorr ciits gives immediate readings and ensures complet...

Page 7: ...lerer for setting regisrer Carriage shift keys for step movements Setting keys Tabulator In the above illustration which shows the machine as seen from above the various operating levers and keys are...

Page 8: ...rrulri plicl appcer iir rhi r egi rer In divi jorr rhu a t wcr rhc rlur rirrrrl ls shown i1ere f bt tr n t tntl o d iur thc Ir rtr rulct ol artiL bt tcti tti to bc i rt nd o t the inside real coLar Ci...

Page 9: ...e numbcr 1365 is to be ser up First press down the figurc 1 then the 3 the 6 ancl tJre 5 For cach key clepressed the corresponding figure will appcar in the scming register i Cnly 3 i s tfi i g eeys f...

Page 10: ...kcl n tr r l t1uil1 1 i S rrr lei ti J rai f f i rI ff l a fhc light liand sltift Iev movcs thc nu ncrals to thc light The tatrulator Bi r single depressio of the red tabulator ker to the r ight o11...

Page 11: ...e carried out smoothly and evenly not by jerks The crank is locked in nor mal position Pulling out the handle in the direction shown by the arrow unlocks the crank Crank forwards positive turn to add...

Page 12: ...n the first and following rurns are positive It counts the number of negs tioe turns when the first and following turns are negative If positizte tarnt dre rnad e witb a negatirte coapled regitter it...

Page 13: ...cl By practising this system right from the start you will very sool1 learn how to calculate speedily and correctly You will find that after a short period there is no need for you even to look at the...

Page 14: ...s musc therefore be positioned so that the eye shows 7 The result ol the division is 1 2 t f Rwles t or decirnal point Addition and subtraction osition the decimal point identically in the setting and...

Page 15: ...of calculating mdchines the FACIT NTK is entirely enclosed and thus protected against dust Naturally the mechanism will be subject to wear as the oil is gradually consumed Like needs cleaning oiling...

Page 16: ...ation or possibly damage the mechanism Never ty to force the machine if it jams Jamming indicates thet some of the operating parts have locked these must be restored to normal position before you can...

Page 17: ...ems If you have set uP the figures correctly trct register will show the total sum to be The multiplier register at the same t add the the procl time records that voti havc added 4 items in all GEryFq...

Page 18: ...e now multiplied bv 43 Look at the multiplier register ir shows The product register shows Press the left hand shift key twice ffi passing the figure 0 in the n rultiplier and make 2 for ard turns You...

Page 19: ...ster Depress the right handle backwards Now the product multiplier register Once again depress the right hand shift until the bell rings then one forward turn the tabu a forwarc l the tilbu ring ancl...

Page 20: ...The product register shc s Clear the settir rg register Norr set ancl rrake a forward turn The up the two remaining figurcs i2 product register now shows thc complete number C1e rr the setting registe...

Page 21: ...kward turn The product register Clear setting register and set up forward turn Product register shows Clear setting register aird set up Iv akc a 136 Give one negative tur11 Product register shows whi...

Page 22: ...normai way of multiplication you will effect a time saving of up to 40 oloby using short cuts If instead you move the handle at once in the negative direction there will appear to the righc in the mu...

Page 23: ...performed in the ordinary manner The product register now shows Clear the setting and multiplier registers Multiply 4694by 38 amount of the two multiplica Continuous multiplication x A Example 127X12...

Page 24: ...tive tLlrns until the number in the prodr rct register as near as possible approaches the first two figures of the dividend 67 After two forward tttrns the figures 56 will appear in the product regist...

Page 25: ...re multiply first by 4 Then press shift key tt and multiply by 3 Press right hand once more and multiply by 5 The multiplier register shows To tire left in the product regisrer you no ger which is you...

Page 26: ...to make a negative turn Press the right hand shift k v lI once and make a forward turn The bell rings and you therefore give the handle a backward turn Press the right hand shift k y B again and conti...

Page 27: ...on rnultiplicand X multiplier prod wct The mulriplicand and multiplier are also called factors i Division dividend diaisor quotient Dividend and divisor can also be expressed thus diaidend numerator a...

Page 28: ...erest In more ways than one the Facit calculating machine will save you the time you have spent reading this little book I rHB 7 E lO M 5 54 I L 1 pBrilTED rN sfiEDEN BY AB TEYcKsATsREKLAn sruru sones...