Fig. 334.—Using Panel Saw in Mitre Box.
For sawing the mitres on large mouldings such as are used on the lid of a gramophone or wireless cabinet, a mitre sawing box and a panel saw may be used as indicated at [Fig. 334].
JOINTS FOR CURVED WORK
[Fig. 335] shows a circular frame made up in two thicknesses, the segments being screwed to each other and the joints crossed in two layers. This is a very strong method, and it is used for making circular frames and curbs up to 15 ft. in diameter. The segments can be either long or short, the only important condition being that they must be marked out and sawn to the correct radius. [Fig. 337] shows a board marked out in segments for this class of work. The longer the boards the better will they cut up, as it gives more opportunities of cutting one piece out of the other as at A A.
| Fig. 335.—Circular Frame in Two Thicknesses. | Fig. 336.—Circular Rim in Halved Segments. |
[Fig. 338] shows how to begin to put the work together. To continue this, fit other segments in position and screw them to D and E respectively. The completed work is illustrated at [Fig. 335].
| Fig. 337.—Board Marked for Circular Jointing. | Fig. 338.—Putting Circular Work Together. |