Patent:GB151670
Patent: | GB 151670 |
Titel: | Improvements in and relating to calculating apparatus for computing wages, percentages and the like |
Datum: | 16.09.1920 |
Ort: | |
Land: | Großbritannien |
Person: | Sidney Bernard Burns und Walter Francis Baker |
Firma: | |
Links im Rechnerlexikon: | Zinsrechner, Lohnrechner |
Schlagworte: | Lohn, Gehalt |
Link zum Patentamt: (ohne Garantie) | ![]() |
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"Logarithmic calculators for computing wages, percentages, and the like comprises three coaxial cylinders, the centre one of which is relatively rotatable, and a slide or cursor pivoted on the axis of the cylinders and provided with arms, on the outer ends of which are percentage or other logarithmic scales for use in conjunction with the numerical and monetary scales on the cylinders.Logarithmic calculators for computing wages, percentages, and the like comprises three coaxial cylinders, the centre one of which is relatively rotatable, and a slide or cursor pivoted on the axis of the cylinders and provided with arms, on the outer ends of which are percentage or other logarithmic scales for use in conjunction with the numerical and monetary scales on the cylinders. " (Aus der Patentschrift)