Adjustment plate

An adjustment plate for adiustably holding a fixture plate on a grinder, said adjustment plate comprising;

• a base having three axes, each of said axes being substantially perpendicular to each of the other axes;
• first means for connecting the fixture plate to said base;
• second means attached to said base for adjusting the fixture plate with respect to said base about one of said axes;
• third means for attaching said base to the grinder;
• fourth means attached to said base for adjusting said base about at least another of said axes with respect to the grinder;
• and
• said fourth means including a plurality of set screws threadably engaging said base, each of said set screws being received in a set screw hole that passes entirely through said base, each of said set screw holes disposed such that each of said set screws may engage the grinder.

An adjustment plate for holding a fixture plate to a grinder table, said adjustment plate comprising:

• a base having a pair of substantially perpendicular horizontal axes and a substantially vertical normal axis, said base defining a fixture plate-receiving area;
• a shoulder bolt having a shoulder and a threaded portion, said threaded portion being at least partially threadably disposed in a threaded shoulder bolt hole in said base;
• a clamp attached to said base outside said fixture plate-receiving area;
• a toggle bolt assembly attached to said base;
• a plurality of T-bolts, each of said T-bolts at least partially slidably received in a T-bolt hole in said base;
• and
• a plurality of set screws, each of said set screws threadably received in a threaded set screw hole in said base.

In combination, a grinder having a grinder table, an adjustment plate, end a fixture plate that holds a part to be ground;

• a bolt connecting said fixture plate to said adjustment plate;
• said fixture plate selectively pivoting about said bolt with respect to said adjustment plate about a first axis;
• at least three screws threadably engaging said adjustment plate and engaging said grinder table, at least one of the screws holding a portion of the adjustment plate spaced from the grinder table, rotation of at least one scraw causing the adjustment plate to be adjusted with respect to the grinder table whereby the orientation of the fixture plate and adjustment plate may be selectively adjusted with respect to the grinder table by the user by selectively rotating at least one of the screws;
• and
• a connector connecting said adjustment plate to said grinder table.