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Patent:GB191513759


Brevet:GB 191513759
Titre:Improvements in Proportional Calculators
Date:08.06.1916
Lieu:
Pays:Royaume-Uni
Personne:Coddington, Fitzherbert John; Livens, George Henry
Entreprise:
Liens internes:Analogrechner, Nomogramm, Proportionalrechner
Mots-Clefs:Gehalt, Lohn
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 GB191513759


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Aus der Patentschrift GB191513759

"Proportional calculators.- In a calculator for wages, employing square-ruled paper and a swivelling reading index-line L upon a transparent pointer N pivoted at one corner, the two sides of the square are graduated to represent hours and shillings respectively, and a second scale C D is provided for calculating percentages of wages in the case in which wages have to be divided between a gang of men...."