Two examples of this class of fixing for timbers, used instead of the mortise and tenon joint, are shown at Figs. 47, 48. A bridle, or narrow bar, is left in the centre of one piece, as a, Fig. 48, about 1/5 the thickness of the wood, and the remaining parts formed similar to the oblique mortise and tenon joint, only that the space b will have to be cut out instead of being left in the form of the tenon, as already shown.