Jig for custom making of paving slabs has a rectangular frame on a support base and with three sides adjustable to finely vary the dimensions of the slab

摘要

A jig for custom making of paving slabs, e.g. for reproducing slabs for repairing historic paved areas, has a rectangular frame with four separate sides (2-5) fitted onto a support base (1). One of the sides is fixed on the base while the other three sides can be adjusted slightly to produce accurate copies of required slabs, including variations in position and width of grooves between decorative stones and tiles. An alignment bar is positioned across the frame, locating into holes in the long sides, to accurately assemble the decorative layer on the concrete support base.