Fig. 167 indicates the framing of a rail to a dining-table leg. In cases similar to this the tenons run into the leg and almost touch each other.They are therefore mitred on the end as shown in the inset. Chair frames often call for similar treatment.

Fig. 167. - Detail of Table Framing.

Twin Tenonswith haunch, as used when the timber is of great thickness, are shown in Fig. 168 .

An Open Slot Mortiseat the end of a right-angled frame is seen in Fig. 169 . Fig. 170 shows an open slot mortise and tenon joint at the end of a frame of 60°. Both these joints are occasionally called end bridle joints.

Fig. 168. - Twin Tenons for Thick Timber.

Fig. 169. - The Open-slot Mortise Joint.

Fig. 170. - Open-Slot Mortise at 60 degrees.