Woodworking – Work support for mortising machine
Patent
1985-10-10
1986-06-17
Bray, W. D.
Woodworking
Work support for mortising machine
33197, 33566, 1441445, 409130, 409182, B27C 510, B65B 104
Patent
active
045950407
ABSTRACT:
A mortise and tenon jig is disclosed, characterized by clamping and adjustment features for use with a router for forming blind or open mortises and tenons in a workpiece. The jig includes a fixed base and a pair of spaced parallel side walls connected therewith to define a longitudinal channel for receiving a workpiece. At least one clamping device is connected with the side walls to clamp the workpiece in a selected position within the channel. A router guide plate is connected with the side walls spaced from and parallel to the base. The router guide plate contains a longitudinal through-slot extending above and affording communication with the channel. A guide is adjustably connected with the guide plate for sliding longitudinal displacement relative to the slot. With the workpiece clamp and the guide adjusted to a selected position, a router is positioned against one end of the guide with its cutting tool arranged in and displaced relative to the slot to cut a mortise from the workpiece. With the router positioned against the other end of the guide and the cutting tool displaced relative to the end of the router guide plate, a tenon is cut in a portion of the workpiece protruding from the channel.
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