Free wheel by Panhard

Here is an excerpt from an advertisement from the 30s promoting Freewheel technology.

 »(…) The freewheel car increases our feelings of well-being tenfold and, moreover, brings us savings. Thus, on the Paris-Marseille route, ie 800 km, a total of 220 km, corresponding to Paris-Avallon, can be coasted, engine at idle, without noticeable reduction in average speed. (…) " 

Panhard freewheel

The freewheel in automobile

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