Patent:GB117278

Patent:	GB 117278
Titel:	Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades
Datum:	10.07.1918
Ort:
Land:	Großbritannien
Person:	Bell, Arthur Mitchell (P)
Firma:
Links im Rechnerlexikon:	Nomogramm
Schlagworte:	proportional, Proportion
Link zum Patentamt: (ohne Garantie)	GB117278

Aus der Patentschrift GB117278

"Proportional calculators.-A calculating - device particularly applicable for use in solving problems connected with textile industries comprises a board or chart M squared according to the metric system, a pointer N being pivoted at the end O of the base-line O X. A second pointer D may be pivoted at the point X. ..."

DATUM: 10.07.1918
TITEL: Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades.
PERSON: BELL ARTHUR MITCHELL

Rechnerlexikon

Patent:GB117278