LEST DE PIED DE TENTE OU DE TONNELLE, ET MOULE POUR LA FABRICATION D'UN TEL LEST

摘要

The ballast comprises a hollow mold able to be filled with material. The ballast comprises a cavity extending from its peripheral surface to beyond its center emerging in the upper and lower faces so as to enable the ballast to be placed around the arbor. A boss (61) on the upper surface has slightly smaller dimensions than those of the reserve (63) located on the lower face so as to allow stacking of several ballasts.