Window screens and other light frames such as those for slates and for printing photographs have this joint.

This joint multiplied is used for small machine-made boxes, and is then called _corner locking_.
DOVETAIL JOINTS "Dovetail" refers to the shape of the projections of one member, when looked at broadside.

These projections are called dovetails, or merely tails.
The projections on the other member are called tenons or pins, and the spaces between both tails and tenons are called mortises or sockets.
_No.47.A thru single dovetail_, Fig.

267, is similar to a slip-joint except that instead of a tenon there is a dovetail.

It is used in window-sashes.
_No.48.A thru-multiple dovetail_, Fig.