Patent ID: 7997313

Claim:
A guide bar assembly in combination with a woodworking table, the table including a Miter-slot extending parallel to a longitudinal axis of the table, the guide bar assembly comprising: a bottom member disposed within the miter slot, the bottom member comprising a width and extending in length in a direction parallel to the longitudinal axis of the table; an associated top member comprising a width and extending in length in a direction parallel to the longitudinal axis for assembly on top of the bottom member within the Miter-slot; a plurality of cooperating pairs of wedge shapes comprising respective opposed side-facing contacting surfaces disposed along the respective top and bottom members; wherein the side-facing contacting surfaces of the respective pairs of wedge shapes are disposed at an angle relative to the longitudinal axis such that differential longitudinal movement between the top member and the bottom member when assembled within the Miter-slot results in a proportionate change in an overall width of the guide bar assembly; wherein a forward end of the bottom member extends past a respective forward end of the top member, and a rearward end of the top member extends past a respective rearward end of the bottom member to allow the forward end of the bottom member and the rearward end of the top member to be urged toward each other so that the guide bar assembly expands in overall width to make snug parallel contact with opposed side walls of the Miter-slot.