Floating Tenon
A variation on the standard Mortise and Tenon joint.
The use of floating tenons allows saving time, because -- when you are building a project that calls for mortises, particularly if you build a lot of Arts and Crafts furniture pieces -- a supply of "tenons" can be prepared in advance, to use in a variety of situations.
In this type of Joinery,
with several types: the more traditonal is
tongue of wood, cut to specific dimensions, to be inserted into a Mortise
.

The image on the left shows
a set up calling for floating tenons. In this unfinished Arts and Crafts
end table are "exposed tenons", where the tenon from
the table's side is dimensioned so the its rounded end projects beyond
the front side of the table's front and back legs. The second example
--laying on its side -- is a floating
Tenon -- with the "floating" tenon -- in
preparation for gluing -- laying loose between the Front Leg
and the table's Stretcher, each of which is
mortised.
For making these "floating" mortises, I use the jigs pictured in this page