Structure of mechanism |
| Function |
This compass, mounted on a copper tripod, has a graduated aluminum dial. Its rhomb-shaped needle is balanced on a small pivot. |
| Dimension of mechanism |
planar |
| Number of links |
2 |
| Drive movement |
other |
| Output movement |
others |
| Degree of freedom |
1 |
| Revolution ability |
yes |
| Revolution ability of input link |
others |
| Relative position between drive and output |
coaxial |
| |
Transfer function |
| Output motion |
revolving |
| Transfer function |
 reversed direction
 partially in- / decreased transfer velocity |
| |
Application |
| Examples of application |
As well as indicating magnetic north, the compass also enables declination measurements to be made. It was used by future teachers in their studies at the Men's and Women's teacher training schools in Clermont-Ferrand, now the IUFM (University Teacher Training Institute) |
| |
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