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Patent:GB189910278
| Patent: | GB 189910278 |
| Titel: | An Improved Calliper Instrument for Measuring and Calculating Purposes |
| Datum: | 21.04.1900 |
| Ort: | |
| Land: | Großbritannien |
| Person: | Powles Henry Handley Pridham |
| Firma: | |
| Links im Rechnerlexikon: | |
| Schlagworte: | |
| Link zum Patentamt: (ohne Garantie) |  GB189910278 |
Aus der Patentschrift GB189910278
Messzirkel mit Quadratskala.
"Calculating - apparatus; calliper gauges.-The callipers are arranged so that they will read the square, or proportionally to the square, of the linear distance between the points, so that calculations as to areas of circles and squares, the electrical resistance of a wire, &c. may be made by mere measurement." (Aus der Patentschrift)
- ok