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Calculator - Peerless

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Structure of mechanism

Function This electromechanical calculating machine has a full keyboard with 9 rows of figures from 1 to 9. There is a 9-figure input register, an 8-figure counter and a 13-figure totalizer. It functions thanks to its electric motor (220v) but also manually by using the crank located to the right of the keyboard. Two keys are used for carriage shift, and small knobs enable the partial re-set of the counter and the totalizer. The technological advance here is the possibility of multiplying a figure by a multiplier from 1 to 9 using the keys located on the right of the machine.
 

Transfer function

Transfer function identical direction
 

Application

Examples of application It can perform the four operations. Addition and subtraction (by complement of 9) are performed automatically by pressing the = and – keys.
 
Permanent links
DMG-Lib FaviconDMG-Lib https://www.dmg-lib.org/dmglib/handler?mcdsc=3175025
Europeana FaviconEuropeana  http://www.europeana.eu/portal/record/2020801/dmglib_handler_mcdsc_3175025.html
Data provider
IFMIFMA  http://www.ifma.fr
PtcPATSTEC  http://www.patstec.fr
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