| C | H | R | O | N | O | L | O | G | Y | ||
| Manufacture of
"Grands Cônes" Machine detailed in the chapter "Jeux de Fers" |
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| 1988 | |||||||||||
Olivier and Claude in the workshop of Mount St Aignan: fitting of the cone in its tripod.
Adjustments of the winch of tension.
The pulley of turn of cable to the back of the cone.
