E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
E21D15/14—Telescopic props
E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring
Dispositif de fixation de l'extrémité d'un amortisseur sur la caisse d'un véhicule automobile, et procédé de montage dudit amortisseur sur la caisse au moyen de ce dispositif.
Dispositif de connexion d'au moins un cable tel qu'un cable de terre a l'interieur d'une enveloppe metallique, telle qu'un candelabre.