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Patent:GB117278


Brevetto:GB 117278
Titolo:Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades
Data:10.07.1918
Luogo:
Nazione:Gran Bretagna
Persona:Bell, Arthur Mitchell (P)
Ditta:
Link interni:Nomogramm
Keywords:proportional, Proportion
Link al brevetto:
(without guarantee)
 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. ..."