Taco of mixed constitution, which expands by percussion (Machine-translation by Google Translate, not legally binding)

摘要

Bitumen of mixed constitution that expands by percussion characterized by the fact that it is constituted by a hollow body of deformable and cracking material that affects slightly frustoconical configuration and has an axial orifice made from its smaller base which does not reach the largest closed forming a head for direct percussion inserting into said hole or axial cavity a wedge-shaped conical piece which acts so that when introducing the set of the cue with the cradle pointed in its lower mouth inside the hole or housing made in the when facing and tapping the outer head of the plug, the progressive introduction of the rod into the axial bore of the deformable body of the plug causes its expansion and subsequent cracking to anchor it inside its housing. (Machine-translation by Google Translate, not legally binding)