Guide plate for wood working tools

Apparatus for working a true line in a workpiece with a tool, said apparatus comprising in combination:

• (a) a guide plate defining an upper plane for guiding relative movement between the workpiece and the tool, said guide plate including a plurality of parallel channels and a slot disposed in each of at least two of said channels;
• (b) a pair of tracks for slidably engaging two slotted ones of said channels;
• (c) means for interconnecting said tracks to preclude relative movement therebetween;
• (d) means for suspending the tool and an attached working member from said pair of tracks through said slots to locate the working member in penetrable relationship with the upper plane for working the workpiece;
• (e) means for interconnecting said suspending means and said tracks to obtain translatory movement of the tool commensurate with translatory movement of said interconnecting means;
• and
• (f) means for positioning and maintaining the workpiece in fixed relationship to said guide plate and in interfering relationship to the working member;
• whereby, upon translation of said pair of tracks under urging by said interconnecting means the working member of the tool works the workpiece along a true line with a precision commensurate with the degree of fit of said pair of tracks in said channels.