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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB117278


Brevet:GB 117278
Titre:Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades
Date:10.07.1918
Lieu:
Pays:Royaume-Uni
Personne:Bell, Arthur Mitchell (P)
Entreprise:
Liens internes:Nomogramm
Mots-Clefs:proportional, Proportion
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 GB117278


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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. ..."