Abstract: A combination dovetail, mortise and tenon jig, including a base unit which is used as a means of supporting different templates thereon, for use in forming the necessary elements involved in both dovetail and mortise and tenon joinery, the common elements being useful for both and providing accurate and consistently formed parts which are intended to interengage and perform the functions required of dovetail and mortise and tenon joints.

Abstract: A measuring device having a vertical column and a horizontal foot extending therefrom, the column having an indicator block adjustably slidable thereon, an indicator plate on the block for engaging a tool to operate on a workpiece, and indicia on the column related to the plate to establish the position of the tool with relation to different surfaces of the plate, and scribing portions on the plate to mark a workpiece when the column is moved with relation to such workpiece.

Abstract: A device for marking centerlines of wood board edges to facilitate drilling dowel holes in the edges of different boards to provide matching, with parts to locate holes and hold such boards while drilling is performed, and where holes in the same relationship in such boards are desired, and a guide or guides for drilling such holes to provide for matching the same so that dowels may be inserted in corresponding holes to maintain the boards in connected relation with the planes of the board surfaces coinciding where desired.

Abstract: A dual dowelling jig having clamping parts for a pair of boards or the like with articulating connections at the ends of the parts which connections include drill guides, the drill guides being arranged to locate holes in the boards precisely opposite one another and equi-distantly spaced to in turn provide for the insertion of dowels in holes drilled through the guides and subsequently locate the boards for gluing and thus fastening them in planar and edge to edge alignment.

Abstract: An anti-kickback and hold down device having provision for mounting on and removal from a saw availed of for ripping material, primarily wood, and including a spring pressed wheel to engage the material being ripped, thus enabling ripping of wood of widely varying thickness, and preventing reverse movement of the wood caused by the saw itself, and effected by ratchet elements controlling the wheel operation, which are able to be positioned in varied longitudinal alignment, as well as to release or disable the ratchet at will, axial alignment of the wheel providing for holding the material being ripped, against a fence or like guide during the ripping operation.

Abstract: A dowelling jig having provision for simultaneously clamping workpieces in which dowels are to be inserted, wherein the jig comprises a pair of movable clamping elements, movable toward and from a stationary element, and arranged for uniform movement in that manner by a screw member which causes the clamping action to be effected simultaneously with each of at least two workpieces, the elements being connected by links which in turn provide for drilling in guides at the ends thereof, the drill guides being movable on axes which are maintained in alignment by the linkage arrangement thereof, the links causing parallel, simultaneous movement of the drill guide means whereby the drilling for dowels is uniformly spaced in each workpiece.