Fig. 42.—Dovetailed Halving Joint used for Lengthening Timber.
| Fig. 43.—Dovetailed and Halved Joint. | Fig. 44.—Dovetailed Halved Joint with Shoulders. |
[Fig. 43] shows a combination of a halved joint dovetailed edgeways, whilst [Fig. 44] shows a dovetailed halved joint with the shoulders housed. This latter is seldom used in actual work.
At [Fig. 45] we have the application of halving joints when constructing a barrow wheel. The centre portion is an example of three pieces half-lapped or, as it is sometimes called, one-third lapped. A sketch of the three pieces separated is shown at L, B, C, [Fig. 46].
This joint is extensively used in the pattern making trade for lap-jointing the arms of pulley patterns, etc. It is probably the most difficult of the halving joints to mark out and construct with the desired degree of accuracy.
| Fig. 45.—Halved Joints on Barrow Wheels. | Fig. 46.—Detail of Halved Joints in Fig. 45. |
[Fig. 47] shows a combination of a bevelled dovetail half-lapped joint. This is only used as a puzzle joint. When neatly constructed and glued together it is apparently impossible to make it, showing as it does a half lap on one side and a dovetailed half lap on the reverse side.
[Fig. 48] is the end view of a kitchen table with drop leaf, showing the skirting board scribed to the solid side. A table of this type is fastened to the wall with two iron holdfasts which engage the ends of the table.