Abstract: A tire tread skiving machine having an elongated frame with two spaced ends. An elongated cutting platen extends transversely across the frame between the two ends. An infeed conveyor conveys extrusions to the cutting platen while an outfeed conveyor conveys extrusions away from the platen. A rail assembly is mounted to the frame above the cutting platen and a carriage is movably mounted to the rail assembly. A rotatably driven skiving blade is mounted to the carriage and cuts the extrusion at the cutting platen as the carriage moves along the rail assembly. The rail assembly is pivotally mounted to the frame so that the dynamically variable angle of the cut made by the skiving blade may be varied.

Abstract: A tire tread skiving machine having an elongated frame with two spaced ends. An elongated cutting platen extends transversely across the frame between the two ends. An infeed conveyor conveys extrusions to the cutting platen while an outfeed conveyor conveys extrusions away from the platen. A rail assembly is mounted to the frame above the cutting platen and a carriage is movably mounted to the rail assembly. A rotatably driven skiving blade is mounted to the carriage and cuts the extrusion at the cutting platen as the carriage moves along the rail assembly. The rail assembly is pivotally mounted to the frame so that the dynamically variable angle of the cut made by the skiving blade may be varied.

Abstract: An element for constructing a structure by detachably connecting a plurality of the elements in edge-to-edge relationship is disclosed. The element comprises a plurality of margins, with at least one of the margins being an arcuate margin. Each margin comprises at least two projections having a recess therebetween. An end-face of one projection is formed with a protruding hinge-pip and an end-face of the other or another projection is formed with a recessed hinge-socket. The arcuate margin is adapted to mate with a complementary margin of another element with the hinge-pip of each element being urged into the hinge socket of the other element.