» Dividing Engine (0356)
Immagini
DESCRIPTION
Exhibit 356 is a linear dividing engine used for marking pre-defined distances on various materials such as diffraction gratings, thermometer scales, rulers etc. This machine was designed and constructed by Louis Guillaume Perreaux (1816-1889), an ingenious Parisian engineer who constructed various precision machines and also invented a steam motorcycle. In this dividing engine, the marking head is moved by a long horizontal screw with a pitch of 0.5 mm whose orientation is indicated on a drum with 500 divisions. Thus the least count of this device is one micron. Besides there is a mechanism for controlling that the pitch is maintained and, if necessary, corrected. It is conserved in a wood and glass box.ISCRIZIONI
- L.G.Perreaux - R. Jean bart
Dati Catalografici
| Data di costruzione: | --- |
|---|---|
| Data di carico: | 1879-10-01 |
| Nr. Inventario: | 1694 (Generale dal 1874) |
| Costruttore: | J.L.Perreaux |
| Materiale: | acciaio, ghisa, legno, vetro, ferro, verniciato |
| Dimensioni: | Cassetta: 32 cm x 69 cm x 45,5 cm |
| Conservazione: | buono |