Fig. 153.—Wedged Tusk Tenon.
[Fig. 154] is a variation of [Fig. 152].
[Fig. 155] shows tusk and wedged tenons as used when making a portable book or medicine cabinet. The shelf is housed into the end, and the tenons run through the end and are secured by wedges. This allows the article to be quickly and easily taken to pieces for removal or re-polishing. The dotted line in [Fig. 155] indicates that the shelf may be shaped if desired.
| Fig. 154.—Another Type of Tusk Tenon. | Fig. 155.—Tusk Tenon and Wedge. |
Fig. 156.—Wheelwright's Self-wedging Tenon Joint.
In [Fig. 156] a self-wedging mortise and tenon joint used by wheelwrights is shown. The dotted line (left-hand diagram) will indicate the amount of taper given to the mortise.
Dovetailed and Wedged Tenon ([Fig. 157]).—When two pieces such as the cross rail and leg of a carpenter's bench are required to be held together by a mortise and tenon, and to be readily taken apart, the tenon is dovetailed on one side and the mortise is made of sufficient width to permit the widest part of the dovetailed tenon to pass into it. When the tenon is in its position a hardwood wedge is driven in above the tenon, as shown.