Patent ID: 7644493

Claim:
An apparatus comprising: a first comb plate coupled to a first slide assembly movable along a rail that is, in turn coupled to a block, the first comb plate including at least one tooth segment; a second comb plate coupled to a second slide assembly that is movable along the rail, and thereby movably disposed relative to the first comb plate and the second comb plate including at least one tooth segment, the first and second comb plates cooperatively forming a comb and the at least one tooth segment of the first comb plate and the at least one tooth segment of the second comb plate cooperatively forming a comb tooth; and a cam assembly including a camming wedge and a device to move the camming wedge along an actuation stroke to adjust a relative position of the first and second comb plates to adjust a thickness dimension of the comb tooth, the camming wedge including a first surface and a second surface, the first surface configured to engage a first cam follower coupled to the first comb plate and the first slide assembly, the second surface configured to engage a second cam follower coupled to the second comb plate and the second slide assembly to move the first and second comb plates in opposed directions to increase or decrease the thickness dimension of the comb tooth wherein the first and second slide assemblies include at least one alignment hole or slot and the block includes first and second alignment holes or slots to align the first and second slide assemblies relative to the block.