car manufactured by the tagliodella rock in a quarry of travertine or similar

摘要

Device for cutting travertine or the like from a rock massif, with a vehicle moving under its own power on a track, from one side of which vehicle a beam of limited thickness projects downwards, which carries a chain within guideways which consists of tool-holding members which carry a saddle-shaped holder which is fastened to the member by releasable connecting elements, in which arrangement an extension projects from each holder, in which extension a frustoconical seat or a pair of frustoconical seats lying side-by-side with axes parallel to the the axis of the chain are provided, and the seats serve to accommodate cutting tools with the exception of a short top sector of these tools, which consist of frustoconical carbide discs and are fastened to the holder via an axial screw so that the effective sector of the disc projecting from the holder and forming the cutting element can be varied, the guideway of the chain in the straight sections consisting of wall pieces and of base elements which are releasably fastened to the beam. IMAGE